Dag Roar Hjelme
Om
Undervisning
TFE4166 Fotonikk II (vår)
TFE4202 Sensorsystemer - design 1 (høst)
TFE4204 Sensorsystemer - design 2 (vår)
Publikasjoner
2022
-
Schwermer, Silje Fuglerud;
Noh, Jong Wook;
Aksnes, Astrid;
Hjelme, Dag Roar.
(2022)
Performance improvement in a supercontinuum fiber-coupled system for near infrared absorption spectroscopy.
Applied Optics
Vitenskapelig artikkel
2021
-
Fuglerud, Silje Skeide;
Ellingsen, Reinold;
Aksnes, Astrid;
Hjelme, Dag Roar.
(2021)
Investigation of the effect of clinically relevant interferents on glucose monitoring using near‐infrared spectroscopy.
Journal of Biophotonics
Vitenskapelig artikkel
-
Yadav, Mukesh;
Noh, Jong Wook;
Hjelme, Dag Roar;
Aksnes, Astrid.
(2021)
Spectral shaping of ring resonator transmission response.
Optics Express
Vitenskapelig artikkel
2020
-
Fuglerud, Silje Skeide;
Milenko, Karolina Barbara;
Aksnes, Astrid;
Hjelme, Dag Roar.
(2020)
Surface-Enhanced Absorption Spectroscopy for Optical Fiber Sensing.
Materials
Vitenskapelig artikkel
-
Wahl, Markus Solberg;
Wilhelmsen, Øivind;
Hjelme, Dag Roar.
(2020)
Using Fiber-Optic Sensors to Give Insight into Liquid-Solid Phase Transitions in Pure Fluids and Mixtures.
Experimental Thermal and Fluid Science
Vitenskapelig artikkel
-
Jernelv, Ine Larsen;
Hjelme, Dag Roar;
Matsuura, Yuji;
Aksnes, Astrid.
(2020)
Convolutional neural networks for classification and regression analysis of one-dimensional spectral data.
arXiv.org
Vitenskapelig artikkel
-
Jernelv, Ine Larsen;
Hjelme, Dag Roar;
Aksnes, Astrid.
(2020)
Infrared measurements of glucose in peritoneal fluid with a tuneable quantum cascade laser.
Biomedical Optics Express
Vitenskapelig artikkel
-
Jernelv, Ine Larsen;
Høvik, Jens;
Hjelme, Dag Roar;
Aksnes, Astrid.
(2020)
Signal enhancement in microstructured silicon attenuated total reflection elements with quantum cascade laser-based spectroscopy.
Proceedings of SPIE, the International Society for Optical Engineering
Vitenskapelig artikkel
-
Wahl, Markus Solberg;
Aasen, Ailo;
Hjelme, Dag Roar;
Wilhelmsen, Øivind.
(2020)
Ice formation and growth in supercooled water–alcohol mixtures: Theory and experiments with dual fiber sensors.
Fluid Phase Equilibria
Vitenskapelig artikkel
-
Jernelv, Ine Larsen;
Strøm, Karina;
Hjelme, Dag Roar;
Aksnes, Astrid.
(2020)
Mid-infrared spectroscopy with a fiber-coupled tuneable quantum cascade laser for glucose sensing.
Proceedings of SPIE, the International Society for Optical Engineering
Vitenskapelig artikkel
2019
-
Fuglerud, Silje Skeide;
Milenko, Karolina Barbara;
Ellingsen, Reinold;
Aksnes, Astrid;
Hjelme, Dag Roar.
(2019)
Glucose sensing by absorption spectroscopy using lensed optical fibers.
Applied Optics
Vitenskapelig artikkel
-
Sarker, Shiplu;
Lamb, Jacob Joseph;
Hjelme, Dag Roar;
Lien, Kristian Myklebust.
(2019)
A review of the role of critical parameters in the design and operation of biogas production plants.
Applied Sciences
Vitenskapelig oversiktsartikkel/review
-
Lamb, Jacob Joseph;
Bernard, Olivier;
Sarker, Shiplu;
Lien, Kristian Myklebust;
Hjelme, Dag Roar.
(2019)
Perspectives of optical colourimetric sensors for anaerobic digestion.
Renewable and Sustainable Energy Reviews
Vitenskapelig oversiktsartikkel/review
-
Åm, Marte Kierulf;
Fougner, Anders Lyngvi;
Ellingsen, Reinold;
Hjelme, Dag Roar;
Bösch, Patrick Christian;
Stavdahl, Øyvind.
(2019)
Erratum to “Why intraperitoneal glucose sensing is sometimes surprisingly rapid and sometimes slow: A hypothesis” [Med. Hypotheses 132 (2019) 109318].
Medical Hypotheses
Errata
-
Lamb, Jacob Joseph;
Islam, Md Hujjatul;
Hjelme, Dag Roar;
Pollet, Bruno;
Lien, Kristian Myklebust.
(2019)
Effect of power ultrasound and Fenton reagents on the biomethane potential from steam-exploded birchwood.
Ultrasonics sonochemistry
Vitenskapelig artikkel
-
Fuglerud, Silje Skeide;
Milenko, Karolina Barbara;
Ellingsen, Reinold;
Aksnes, Astrid;
Hjelme, Dag Roar.
(2019)
Feasibility of supercontinuum sources for use in glucose sensing by absorption spectroscopy.
Proceedings of SPIE, the International Society for Optical Engineering
Vitenskapelig artikkel
-
Åm, Marte Kierulf;
Fougner, Anders Lyngvi;
Ellingsen, Reinold;
Hjelme, Dag Roar;
Bösch, Patrick Christian;
Stavdahl, Øyvind.
(2019)
Why intraperitoneal glucose sensing is sometimes surprisingly rapid and sometimes slow: A hypothesis
.
Medical Hypotheses
Vitenskapelig artikkel
-
Wahl, Markus Solberg;
Wilhelmsen, Øivind;
Hjelme, Dag Roar.
(2019)
Addressing Challenges in Fabricating Reflection-Based Fiber Optic Interferometers.
Sensors
Vitenskapelig artikkel
-
Lamb, Jacob Joseph;
Bernard, Olivier;
Sarker, Shiplu;
Lien, Kristian Myklebust;
Hjelme, Dag Roar.
(2019)
Perspectives of surface plasmon resonance sensors for optimized biogas methanation.
Engineering in Life Sciences
Vitenskapelig oversiktsartikkel/review
-
Lamb, Jacob Joseph;
Hjelme, Dag Roar;
Lien, Kristian Myklebust.
(2019)
Carbohydrate Yield and Biomethane Potential from Enzymatically Hydrolysed Saccharina latissima and Its Industrial Potential.
Advances in microbiology
Vitenskapelig artikkel
-
Jernelv, Ine Larsen;
Strøm, Karina;
Hjelme, Dag Roar;
Aksnes, Astrid.
(2019)
Infrared Spectroscopy with a Fiber-Coupled Quantum Cascade Laser for Attenuated Total Reflection Measurements Towards Biomedical Applications.
Sensors
Vitenskapelig artikkel
-
Lamb, Jacob Joseph;
Lien, Kristian Myklebust;
Hjelme, Dag Roar.
(2019)
Digitalization of colourimetric sensor arrays for volatile fatty acid detection in anaerobic digestion.
MethodsX
Vitenskapelig artikkel
2018
-
Muri, Harald Ian;
Bano, Andon;
Hjelme, Dag Roar.
(2018)
A single-point, multiparameter, fiber optic sensor based on a combination of interferometry and LSPR.
Journal of Lightwave Technology
Vitenskapelig artikkel
-
Sarker, Shiplu;
Lamb, Jacob Joseph;
Hjelme, Dag Roar;
Lien, Kristian Myklebust.
(2018)
Overview of recent progress towards in-situ biogas upgradation techniques.
Fuel
Vitenskapelig oversiktsartikkel/review
-
Muri, Harald Ian;
Bano, Andon;
Hjelme, Dag Roar.
(2018)
LSPR and Interferometric Sensor Modalities Combined Using a Double-Clad Optical Fiber.
Sensors
Vitenskapelig artikkel
-
Lamb, Jacob Joseph;
Sarker, Shiplu;
Hjelme, Dag Roar;
Lien, Kristian Myklebust.
(2018)
Fermentative Bioethanol Production Using Enzymatically Hydrolysed Saccharina latissima.
Advances in microbiology
Vitenskapelig artikkel
-
Jernelv, Ine Larsen;
Milenko, Karolina Barbara;
Fuglerud, Silje Skeide;
Hjelme, Dag Roar;
Ellingsen, Reinold;
Aksnes, Astrid.
(2018)
A review of optical methods for continuous glucose monitoring.
Applied spectroscopy reviews (Softcover ed.)
Vitenskapelig oversiktsartikkel/review
-
Muri, Harald Ian;
Hoang, Linh;
Hjelme, Dag Roar.
(2018)
Mapping nanoparticles in hydrogels: A comparison of preparation methods for electron microscopy.
Applied Sciences
Vitenskapelig artikkel
-
Milenko, Karolina Barbara;
Fuglerud, Silje Skeide;
Kjeldby, Snorre Braathen;
Ellingsen, Reinold;
Aksnes, Astrid;
Hjelme, Dag Roar.
(2018)
Micro-lensed optical fibers for a surface-enhanced Raman scattering sensing probe.
Optics Letters
Vitenskapelig artikkel
-
Åm, Marte Kierulf;
Kölle, Konstanze;
Fougner, Anders Lyngvi;
Dirnena-Fusini, Ilze;
Bösch, Patrick Christian;
Ellingsen, Reinold.
(2018)
Effect of sensor location on continuous intraperitoneal glucose sensing in an animal model.
PLOS ONE
Vitenskapelig artikkel
2017
-
Muri, Harald Ian;
Bano, Andon;
Hjelme, Dag Roar.
(2017)
First step towards an interferometric and localized surface plasmon fiber optic sensor.
Proceedings of SPIE, the International Society for Optical Engineering
Vitenskapelig artikkel
-
Muri, Harald Ian;
Hjelme, Dag Roar.
(2017)
LSPR Coupling and Distribution of Interparticle Distances between Nanoparticles in Hydrogel on Optical Fiber End Face.
Sensors
Vitenskapelig artikkel
-
Muri, Harald Ian;
Bano, Andon;
Hjelme, Dag Roar.
(2017)
Interferometric and localized surface plasmon based fiber optic sensor.
Progress in Biomedical Optics and Imaging
Vitenskapelig artikkel
-
Hammarling, Krister;
Engholm, Magnus;
Muri, Harald Ian;
Wahl, Markus Solberg;
Hjelme, Dag Roar.
(2017)
Dual parameter fiber optic sensor combining a Fabry-Perot and a Mach-Zehnder interferometer.
Proceedings of IEEE Sensors
Vitenskapelig artikkel
2016
-
Muri, Ian;
Hjelme, Dag Roar.
(2016)
Novel localized surface plasmon resonance based optical fiber sensor.
Proceedings of SPIE, the International Society for Optical Engineering
Vitenskapelig artikkel
-
Fougner, Anders Lyngvi;
Kölle, Konstanze;
Skjaervold, Nils Kristian;
Elvemo, Nicolas-Andreas L.;
Hjelme, Dag Roar;
Ellingsen, Reinold.
(2016)
Intraperitoneal Glucose Sensing is Sometimes Surprisingly Rapid.
MIC Journal: Modeling, Identification and Control
Vitenskapelig artikkel
-
Bartholsen, Ingebrigt;
Hjelme, Dag Roar.
(2016)
Fast and accurate read-out of interferometric optical fiber sensors.
Proceedings of SPIE, the International Society for Optical Engineering
Vitenskapelig artikkel
2015
-
Strømstad, Håkon Grøn;
Hjelme, Dag Roar.
(2015)
Low-cost high performance readout system for fiber-optic biosensors.
Progress in Biomedical Optics and Imaging
Vitenskapelig artikkel
2014
-
Eriksen, Anders;
Osinski, Dominik;
Hjelme, Dag Roar.
(2014)
Evaluation of thermal imaging system and thermal radiation detector for real-time condition monitoring of high power frequency converters.
Advances in Manufacturing
Vitenskapelig artikkel
2013
-
Skjaervold, Nils Kristian;
Østling, Dan;
Hjelme, Dag Roar;
Spigset, Olav;
Lyng, Oddveig;
Aadahl, Petter.
(2013)
Blood Glucose Control Using a Novel Continuous Blood Glucose Monitor and Repetitive Intravenous Insulin Boluses: Exploiting Natural Insulin Pulsatility as a Principle for a Future Artificial Pancreas.
International Journal of Endocrinology
Vitenskapelig artikkel
-
Eriksen, Anders;
Osinski, Dominik;
Hjelme, Dag Roar.
(2013)
Evaluation of thermal imaging system and thermal radiation detector for real-time condition monitoring of highpower frequency converters.
NTNU Engineering Series
Vitenskapelig artikkel
-
Veisllari, Raimena;
Bjørnstad, Steinar;
Hjelme, Dag Roar.
(2013)
Experimental demonstration of high throughput, ultra-low delay variation packet/circuit fusion network.
Electronics Letters
Vitenskapelig artikkel
2011
-
Skjærvold, Nils Kristian;
Solligård, Erik;
Hjelme, Dag Roar;
Aadahl, Petter.
(2011)
Continuous Measurement of Blood Glucose Validation of a New Intravascular Sensor.
Anesthesiology
Vitenskapelig artikkel
-
Hjelme, Dag Roar;
Lydersen, Lars Vincent Van de Wiel;
Makarov, Vadim.
(2011)
Quantum Cryptography.
CRC Press
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
2010
-
Tuft, Vegard Larsen;
Hjelme, Dag Roar;
Bjørnstad, Steinar.
(2010)
Automatic Polarization Control With Packet Transmission and the Effect of Traffic Patterns.
Journal of Lightwave Technology
Vitenskapelig artikkel
2009
-
Tuft, Vegard Larsen;
Bjørnstad, Steinar;
Hjelme, Dag Roar.
(2009)
Effect of traffic patterns on automatic polarization control with polarization and time-division multiplexed optical packet transmission.
Journal of Optical Networking
Vitenskapelig artikkel
-
Tierney, Sven;
Falch, Berit H.;
Hjelme, Dag Roar;
Stokke, Bjørn Torger.
(2009)
Determination of Glucose Levels Using a Functionalized Hydrogel-Optical Fiber Biosensor: Toward Continuous Monitoring of Blood Glucose in Vivo.
Analytical Chemistry
Vitenskapelig artikkel
2008
-
Tierney, Sven;
Hjelme, DR;
Stokke, Bjørn Torger.
(2008)
Determination of swelling of responsive gels with nanometer resolution. Fiber-optic based platform for hydrogels as signal transducers.
Analytical Chemistry
Vitenskapelig artikkel
2007
-
Tuft, Vegard Larsen;
Bjørnstad, Steinar;
Hjelme, Dag Roar.
(2007)
Automatic polarization control for packet transmission in a hybrid circuit and packet switched optical network.
IEEE Photonics Technology Letters
Vitenskapelig artikkel
2006
-
Larsen, Eivind La Puebla;
Randeberg, Lise Lyngsnes;
Gederaas, Odrun Arna;
Arum, Carl-Jørgen;
Krokan, Hans Einar;
Chen, Duan.
(2006)
Monitoring of hALA induced PDT in rat bladder cancer by optical spectroscopy.
Lasers in Surgery and Medicine
Sammendrag/abstract
-
Nord, Martin;
Bjornstad, Steinar;
Bjørnstad, Steinar;
Austad, Oddgeir;
Tuft, Vegard Larsen;
Hjelme, Dag Roar.
(2006)
OpMiGua Hybrid Circuit- and Packet-Switched Test-Bed Demonstration and Performance.
IEEE Photonics Technology Letters
Vitenskapelig artikkel
-
Nord, Martin;
Bjørnstad, Steinar;
Austad, Oddgeir;
Tuft, Vegard;
Hjelme, Dag roar;
Sudbø, Aasmund Sveinung.
(2006)
Hybrid circuit- and packet switched test-bed.
IEEE Photonics Technology Letters
Vitenskapelig artikkel
-
Bjørnstad, Steinar;
Hjelme, Dag Roar;
Stol, Norvald.
(2006)
A Packet-Switched Hybrid Optical Network with Service Guarantees.
IEEE Journal on Selected Areas in Communications
Vitenskapelig artikkel
2005
-
Makarov, Vadim;
Hjelme, Dag Roar.
(2005)
Faked states attack on quantum cryptosystems.
Journal of Modern Optics
Vitenskapelig artikkel
-
Bjørnstad, Steinar;
Nord, Martin;
Olsen, Torodd;
Hjelme, Dag Roar;
Stol, Norvald.
(2005)
Burst, packet and hybrid switching in the optical core network.
Telektronikk
Vitenskapelig artikkel
2004
-
Makarov, Vadim;
Brylevski, Alexey;
Hjelme, Dag Roar.
(2004)
Real-time phase tracking in single-photon interferometers.
Applied Optics
Vitenskapelig artikkel
2001
-
Vakhitov, Artem;
Makarov, Vadim;
Hjelme, Dag Roar.
(2001)
Large pulse attack as a method of conventional optical eavesdropping in quantum cryptography.
Journal of Modern Optics
Vitenskapelig artikkel
1998
-
Hjelme, Dag Roar;
Storøy, Helge;
Skaar, Johannes.
(1998)
Reconfigurable all-optical crossconnect node using synthesized fiber Bragg gratings for both demultiplexing and switching.
OSA Trends in Optics and Photonics
Vitenskapelig artikkel
Tidsskriftspublikasjoner
-
Schwermer, Silje Fuglerud;
Noh, Jong Wook;
Aksnes, Astrid;
Hjelme, Dag Roar.
(2022)
Performance improvement in a supercontinuum fiber-coupled system for near infrared absorption spectroscopy.
Applied Optics
Vitenskapelig artikkel
-
Fuglerud, Silje Skeide;
Ellingsen, Reinold;
Aksnes, Astrid;
Hjelme, Dag Roar.
(2021)
Investigation of the effect of clinically relevant interferents on glucose monitoring using near‐infrared spectroscopy.
Journal of Biophotonics
Vitenskapelig artikkel
-
Yadav, Mukesh;
Noh, Jong Wook;
Hjelme, Dag Roar;
Aksnes, Astrid.
(2021)
Spectral shaping of ring resonator transmission response.
Optics Express
Vitenskapelig artikkel
-
Fuglerud, Silje Skeide;
Milenko, Karolina Barbara;
Aksnes, Astrid;
Hjelme, Dag Roar.
(2020)
Surface-Enhanced Absorption Spectroscopy for Optical Fiber Sensing.
Materials
Vitenskapelig artikkel
-
Wahl, Markus Solberg;
Wilhelmsen, Øivind;
Hjelme, Dag Roar.
(2020)
Using Fiber-Optic Sensors to Give Insight into Liquid-Solid Phase Transitions in Pure Fluids and Mixtures.
Experimental Thermal and Fluid Science
Vitenskapelig artikkel
-
Jernelv, Ine Larsen;
Hjelme, Dag Roar;
Matsuura, Yuji;
Aksnes, Astrid.
(2020)
Convolutional neural networks for classification and regression analysis of one-dimensional spectral data.
arXiv.org
Vitenskapelig artikkel
-
Jernelv, Ine Larsen;
Hjelme, Dag Roar;
Aksnes, Astrid.
(2020)
Infrared measurements of glucose in peritoneal fluid with a tuneable quantum cascade laser.
Biomedical Optics Express
Vitenskapelig artikkel
-
Jernelv, Ine Larsen;
Høvik, Jens;
Hjelme, Dag Roar;
Aksnes, Astrid.
(2020)
Signal enhancement in microstructured silicon attenuated total reflection elements with quantum cascade laser-based spectroscopy.
Proceedings of SPIE, the International Society for Optical Engineering
Vitenskapelig artikkel
-
Wahl, Markus Solberg;
Aasen, Ailo;
Hjelme, Dag Roar;
Wilhelmsen, Øivind.
(2020)
Ice formation and growth in supercooled water–alcohol mixtures: Theory and experiments with dual fiber sensors.
Fluid Phase Equilibria
Vitenskapelig artikkel
-
Jernelv, Ine Larsen;
Strøm, Karina;
Hjelme, Dag Roar;
Aksnes, Astrid.
(2020)
Mid-infrared spectroscopy with a fiber-coupled tuneable quantum cascade laser for glucose sensing.
Proceedings of SPIE, the International Society for Optical Engineering
Vitenskapelig artikkel
-
Fuglerud, Silje Skeide;
Milenko, Karolina Barbara;
Ellingsen, Reinold;
Aksnes, Astrid;
Hjelme, Dag Roar.
(2019)
Glucose sensing by absorption spectroscopy using lensed optical fibers.
Applied Optics
Vitenskapelig artikkel
-
Sarker, Shiplu;
Lamb, Jacob Joseph;
Hjelme, Dag Roar;
Lien, Kristian Myklebust.
(2019)
A review of the role of critical parameters in the design and operation of biogas production plants.
Applied Sciences
Vitenskapelig oversiktsartikkel/review
-
Lamb, Jacob Joseph;
Bernard, Olivier;
Sarker, Shiplu;
Lien, Kristian Myklebust;
Hjelme, Dag Roar.
(2019)
Perspectives of optical colourimetric sensors for anaerobic digestion.
Renewable and Sustainable Energy Reviews
Vitenskapelig oversiktsartikkel/review
-
Åm, Marte Kierulf;
Fougner, Anders Lyngvi;
Ellingsen, Reinold;
Hjelme, Dag Roar;
Bösch, Patrick Christian;
Stavdahl, Øyvind.
(2019)
Erratum to “Why intraperitoneal glucose sensing is sometimes surprisingly rapid and sometimes slow: A hypothesis” [Med. Hypotheses 132 (2019) 109318].
Medical Hypotheses
Errata
-
Lamb, Jacob Joseph;
Islam, Md Hujjatul;
Hjelme, Dag Roar;
Pollet, Bruno;
Lien, Kristian Myklebust.
(2019)
Effect of power ultrasound and Fenton reagents on the biomethane potential from steam-exploded birchwood.
Ultrasonics sonochemistry
Vitenskapelig artikkel
-
Fuglerud, Silje Skeide;
Milenko, Karolina Barbara;
Ellingsen, Reinold;
Aksnes, Astrid;
Hjelme, Dag Roar.
(2019)
Feasibility of supercontinuum sources for use in glucose sensing by absorption spectroscopy.
Proceedings of SPIE, the International Society for Optical Engineering
Vitenskapelig artikkel
-
Åm, Marte Kierulf;
Fougner, Anders Lyngvi;
Ellingsen, Reinold;
Hjelme, Dag Roar;
Bösch, Patrick Christian;
Stavdahl, Øyvind.
(2019)
Why intraperitoneal glucose sensing is sometimes surprisingly rapid and sometimes slow: A hypothesis
.
Medical Hypotheses
Vitenskapelig artikkel
-
Wahl, Markus Solberg;
Wilhelmsen, Øivind;
Hjelme, Dag Roar.
(2019)
Addressing Challenges in Fabricating Reflection-Based Fiber Optic Interferometers.
Sensors
Vitenskapelig artikkel
-
Lamb, Jacob Joseph;
Bernard, Olivier;
Sarker, Shiplu;
Lien, Kristian Myklebust;
Hjelme, Dag Roar.
(2019)
Perspectives of surface plasmon resonance sensors for optimized biogas methanation.
Engineering in Life Sciences
Vitenskapelig oversiktsartikkel/review
-
Lamb, Jacob Joseph;
Hjelme, Dag Roar;
Lien, Kristian Myklebust.
(2019)
Carbohydrate Yield and Biomethane Potential from Enzymatically Hydrolysed Saccharina latissima and Its Industrial Potential.
Advances in microbiology
Vitenskapelig artikkel
-
Jernelv, Ine Larsen;
Strøm, Karina;
Hjelme, Dag Roar;
Aksnes, Astrid.
(2019)
Infrared Spectroscopy with a Fiber-Coupled Quantum Cascade Laser for Attenuated Total Reflection Measurements Towards Biomedical Applications.
Sensors
Vitenskapelig artikkel
-
Lamb, Jacob Joseph;
Lien, Kristian Myklebust;
Hjelme, Dag Roar.
(2019)
Digitalization of colourimetric sensor arrays for volatile fatty acid detection in anaerobic digestion.
MethodsX
Vitenskapelig artikkel
-
Muri, Harald Ian;
Bano, Andon;
Hjelme, Dag Roar.
(2018)
A single-point, multiparameter, fiber optic sensor based on a combination of interferometry and LSPR.
Journal of Lightwave Technology
Vitenskapelig artikkel
-
Sarker, Shiplu;
Lamb, Jacob Joseph;
Hjelme, Dag Roar;
Lien, Kristian Myklebust.
(2018)
Overview of recent progress towards in-situ biogas upgradation techniques.
Fuel
Vitenskapelig oversiktsartikkel/review
-
Muri, Harald Ian;
Bano, Andon;
Hjelme, Dag Roar.
(2018)
LSPR and Interferometric Sensor Modalities Combined Using a Double-Clad Optical Fiber.
Sensors
Vitenskapelig artikkel
-
Lamb, Jacob Joseph;
Sarker, Shiplu;
Hjelme, Dag Roar;
Lien, Kristian Myklebust.
(2018)
Fermentative Bioethanol Production Using Enzymatically Hydrolysed Saccharina latissima.
Advances in microbiology
Vitenskapelig artikkel
-
Jernelv, Ine Larsen;
Milenko, Karolina Barbara;
Fuglerud, Silje Skeide;
Hjelme, Dag Roar;
Ellingsen, Reinold;
Aksnes, Astrid.
(2018)
A review of optical methods for continuous glucose monitoring.
Applied spectroscopy reviews (Softcover ed.)
Vitenskapelig oversiktsartikkel/review
-
Muri, Harald Ian;
Hoang, Linh;
Hjelme, Dag Roar.
(2018)
Mapping nanoparticles in hydrogels: A comparison of preparation methods for electron microscopy.
Applied Sciences
Vitenskapelig artikkel
-
Milenko, Karolina Barbara;
Fuglerud, Silje Skeide;
Kjeldby, Snorre Braathen;
Ellingsen, Reinold;
Aksnes, Astrid;
Hjelme, Dag Roar.
(2018)
Micro-lensed optical fibers for a surface-enhanced Raman scattering sensing probe.
Optics Letters
Vitenskapelig artikkel
-
Åm, Marte Kierulf;
Kölle, Konstanze;
Fougner, Anders Lyngvi;
Dirnena-Fusini, Ilze;
Bösch, Patrick Christian;
Ellingsen, Reinold.
(2018)
Effect of sensor location on continuous intraperitoneal glucose sensing in an animal model.
PLOS ONE
Vitenskapelig artikkel
-
Muri, Harald Ian;
Bano, Andon;
Hjelme, Dag Roar.
(2017)
First step towards an interferometric and localized surface plasmon fiber optic sensor.
Proceedings of SPIE, the International Society for Optical Engineering
Vitenskapelig artikkel
-
Muri, Harald Ian;
Hjelme, Dag Roar.
(2017)
LSPR Coupling and Distribution of Interparticle Distances between Nanoparticles in Hydrogel on Optical Fiber End Face.
Sensors
Vitenskapelig artikkel
-
Muri, Harald Ian;
Bano, Andon;
Hjelme, Dag Roar.
(2017)
Interferometric and localized surface plasmon based fiber optic sensor.
Progress in Biomedical Optics and Imaging
Vitenskapelig artikkel
-
Hammarling, Krister;
Engholm, Magnus;
Muri, Harald Ian;
Wahl, Markus Solberg;
Hjelme, Dag Roar.
(2017)
Dual parameter fiber optic sensor combining a Fabry-Perot and a Mach-Zehnder interferometer.
Proceedings of IEEE Sensors
Vitenskapelig artikkel
-
Muri, Ian;
Hjelme, Dag Roar.
(2016)
Novel localized surface plasmon resonance based optical fiber sensor.
Proceedings of SPIE, the International Society for Optical Engineering
Vitenskapelig artikkel
-
Fougner, Anders Lyngvi;
Kölle, Konstanze;
Skjaervold, Nils Kristian;
Elvemo, Nicolas-Andreas L.;
Hjelme, Dag Roar;
Ellingsen, Reinold.
(2016)
Intraperitoneal Glucose Sensing is Sometimes Surprisingly Rapid.
MIC Journal: Modeling, Identification and Control
Vitenskapelig artikkel
-
Bartholsen, Ingebrigt;
Hjelme, Dag Roar.
(2016)
Fast and accurate read-out of interferometric optical fiber sensors.
Proceedings of SPIE, the International Society for Optical Engineering
Vitenskapelig artikkel
-
Strømstad, Håkon Grøn;
Hjelme, Dag Roar.
(2015)
Low-cost high performance readout system for fiber-optic biosensors.
Progress in Biomedical Optics and Imaging
Vitenskapelig artikkel
-
Eriksen, Anders;
Osinski, Dominik;
Hjelme, Dag Roar.
(2014)
Evaluation of thermal imaging system and thermal radiation detector for real-time condition monitoring of high power frequency converters.
Advances in Manufacturing
Vitenskapelig artikkel
-
Skjaervold, Nils Kristian;
Østling, Dan;
Hjelme, Dag Roar;
Spigset, Olav;
Lyng, Oddveig;
Aadahl, Petter.
(2013)
Blood Glucose Control Using a Novel Continuous Blood Glucose Monitor and Repetitive Intravenous Insulin Boluses: Exploiting Natural Insulin Pulsatility as a Principle for a Future Artificial Pancreas.
International Journal of Endocrinology
Vitenskapelig artikkel
-
Eriksen, Anders;
Osinski, Dominik;
Hjelme, Dag Roar.
(2013)
Evaluation of thermal imaging system and thermal radiation detector for real-time condition monitoring of highpower frequency converters.
NTNU Engineering Series
Vitenskapelig artikkel
-
Veisllari, Raimena;
Bjørnstad, Steinar;
Hjelme, Dag Roar.
(2013)
Experimental demonstration of high throughput, ultra-low delay variation packet/circuit fusion network.
Electronics Letters
Vitenskapelig artikkel
-
Skjærvold, Nils Kristian;
Solligård, Erik;
Hjelme, Dag Roar;
Aadahl, Petter.
(2011)
Continuous Measurement of Blood Glucose Validation of a New Intravascular Sensor.
Anesthesiology
Vitenskapelig artikkel
-
Tuft, Vegard Larsen;
Hjelme, Dag Roar;
Bjørnstad, Steinar.
(2010)
Automatic Polarization Control With Packet Transmission and the Effect of Traffic Patterns.
Journal of Lightwave Technology
Vitenskapelig artikkel
-
Tuft, Vegard Larsen;
Bjørnstad, Steinar;
Hjelme, Dag Roar.
(2009)
Effect of traffic patterns on automatic polarization control with polarization and time-division multiplexed optical packet transmission.
Journal of Optical Networking
Vitenskapelig artikkel
-
Tierney, Sven;
Falch, Berit H.;
Hjelme, Dag Roar;
Stokke, Bjørn Torger.
(2009)
Determination of Glucose Levels Using a Functionalized Hydrogel-Optical Fiber Biosensor: Toward Continuous Monitoring of Blood Glucose in Vivo.
Analytical Chemistry
Vitenskapelig artikkel
-
Tierney, Sven;
Hjelme, DR;
Stokke, Bjørn Torger.
(2008)
Determination of swelling of responsive gels with nanometer resolution. Fiber-optic based platform for hydrogels as signal transducers.
Analytical Chemistry
Vitenskapelig artikkel
-
Tuft, Vegard Larsen;
Bjørnstad, Steinar;
Hjelme, Dag Roar.
(2007)
Automatic polarization control for packet transmission in a hybrid circuit and packet switched optical network.
IEEE Photonics Technology Letters
Vitenskapelig artikkel
-
Larsen, Eivind La Puebla;
Randeberg, Lise Lyngsnes;
Gederaas, Odrun Arna;
Arum, Carl-Jørgen;
Krokan, Hans Einar;
Chen, Duan.
(2006)
Monitoring of hALA induced PDT in rat bladder cancer by optical spectroscopy.
Lasers in Surgery and Medicine
Sammendrag/abstract
-
Nord, Martin;
Bjornstad, Steinar;
Bjørnstad, Steinar;
Austad, Oddgeir;
Tuft, Vegard Larsen;
Hjelme, Dag Roar.
(2006)
OpMiGua Hybrid Circuit- and Packet-Switched Test-Bed Demonstration and Performance.
IEEE Photonics Technology Letters
Vitenskapelig artikkel
-
Nord, Martin;
Bjørnstad, Steinar;
Austad, Oddgeir;
Tuft, Vegard;
Hjelme, Dag roar;
Sudbø, Aasmund Sveinung.
(2006)
Hybrid circuit- and packet switched test-bed.
IEEE Photonics Technology Letters
Vitenskapelig artikkel
-
Bjørnstad, Steinar;
Hjelme, Dag Roar;
Stol, Norvald.
(2006)
A Packet-Switched Hybrid Optical Network with Service Guarantees.
IEEE Journal on Selected Areas in Communications
Vitenskapelig artikkel
-
Makarov, Vadim;
Hjelme, Dag Roar.
(2005)
Faked states attack on quantum cryptosystems.
Journal of Modern Optics
Vitenskapelig artikkel
-
Bjørnstad, Steinar;
Nord, Martin;
Olsen, Torodd;
Hjelme, Dag Roar;
Stol, Norvald.
(2005)
Burst, packet and hybrid switching in the optical core network.
Telektronikk
Vitenskapelig artikkel
-
Makarov, Vadim;
Brylevski, Alexey;
Hjelme, Dag Roar.
(2004)
Real-time phase tracking in single-photon interferometers.
Applied Optics
Vitenskapelig artikkel
-
Vakhitov, Artem;
Makarov, Vadim;
Hjelme, Dag Roar.
(2001)
Large pulse attack as a method of conventional optical eavesdropping in quantum cryptography.
Journal of Modern Optics
Vitenskapelig artikkel
-
Hjelme, Dag Roar;
Storøy, Helge;
Skaar, Johannes.
(1998)
Reconfigurable all-optical crossconnect node using synthesized fiber Bragg gratings for both demultiplexing and switching.
OSA Trends in Optics and Photonics
Vitenskapelig artikkel
Del av bok/rapport
-
Hjelme, Dag Roar;
Lydersen, Lars Vincent Van de Wiel;
Makarov, Vadim.
(2011)
Quantum Cryptography.
CRC Press
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Undervisning
Emner
- TFE4202 - Sensorsystemer - design 1
- FE8123 - Doktorgradsseminar i nanoelektronikk og fotonikk
- IELS2031 - Elektronikkonstruksjon
- IELET3109 - Avanserte Sensorsystemer
- TFE4166 - Fotonikk II
- TFE4930 - Electronic Systems Design, masteroppgave
- TFE4204 - Sensorsystemer - design 2
- TFE4590 - Electronic Systems Design, fordypningsprosjekt
- TFE4161 - Fotonikk I
- IELET2112 - Anvendt instrumentering
- FE8140 - Optiske, elektriske og magnetiske karakteriseringsteknikker
- IELS3011 - Avanserte sensorsystemer