Engelsk personkortHellesø, Olav Gaute
Førsteamanuensis
Fysikk og teknologi
Funksjon
Leder / Dataanalyse og sensorteknologi
Telefon
776 45297
Epost
Kontor/besøksadresse
Nordlysobservatoriet
NOBS HOV 208
Biografiske data
Underviser delar av følgjande kurs:
FYS-1003, FYS-1006, FYS-2008, FYS-2014, FYS-3009
Forskerprofil i Cristin
Forskningsinteresser
- Fotonikk
- Mikro- og nanoteknologi
- Integrert optikk og fanging av mikro- og nanopartiklar
Forskningsprosjekter
Hovudprosjekteter er MicroMove og Sensorteknologi for olje og gass
Hjemmesider
Arbeider i CRIStin
- Hellesø, Olav Gaute; Løvhaugen, Pål; Subramanian, Ananth Z.; Wilkinson, James S.; Ahluwalia, Balpreet Singh. Surface transport and stable trapping of particles and cells by an optical waveguide loop. Lab on a Chip 2012; Volum 12 (18). ISSN 1473-0189.s 3436 - 3440.s doi: 10.1039/c2lc40375g.
- Løvhaugen, Pål; Ahluwalia, Balpreet Singh; Huser, Thomas Rolf; Mccourt, Peter Anthony; Hellesø, Olav Gaute. Optical trapping forces on biological cells on a waveguide surface. Proceedings of SPIE, the International Society for Optical Engineering 2011; Volum 7902. ISSN 0277-786X.s doi: 10.1117/12.873779.
- Ahluwalia, Balpreet Singh; Løvhaugen, Pål; Hellesø, Olav Gaute. Waveguide trapping of hollow glass spheres. Optics Letters 2011; Volum 36 (17). ISSN 0146-9592.s 3347 - 3349.s doi: DOI: 10.1364/OL.36.003347.
- Løvhaugen, Pål; Ahluwalia, Balpreet Singh; Hellesø, Olav Gaute. Optical waveguide trapping forces on hollow glass spheres. Proceedings of SPIE, the International Society for Optical Engineering 2011; Volum 7950. ISSN 0277-786X.s doi: 10.1117/12.873772.
- Ahluwalia, Balpreet Singh; Hellesø, Olav Gaute; Subramanian, Ananth Z.; Perney, N. M. B.; Sessions, N. P.; Wilkinson, James S.. Fabrication and optimization of Tantalum pentoxide waveguides for optical micro-propulsion. SPIE - International Society for Optical Engineering 2010 ISBN 9780819480002.
- Ahluwalia, Balpreet Singh; Mccourt, Peter Anthony; Huser, Thomas Rolf; Hellesø, Olav Gaute. Optical trapping and propulsion of red blood cells on waveguide surfaces. Optics Express 2010; Volum 18 (20). ISSN 1094-4087.s 21053 - 21061.
- Ahluwalia, Balpreet Singh; Hellesø, Olav Gaute; Subramanian, Ananth Z.; Wilkinson, James S.; Chen, Jie; Chen, Xuyuan. Integrated platform based on high refractive index contrast waveguide for optical guiding and sorting. Proceedings of SPIE, the International Society for Optical Engineering 2010 (7613). ISSN 0277-786X.s 1 - 8.s doi: 10.1117/12.840632.
- Ahluwalia, Balpreet Singh; Subramanian, A. Z.; Hellesø, Olav Gaute; Perney, N. M. B.; Sessions, N. P.; Wilkinson, J. S.. Fabrication of Submicrometer High Refractive Index Tantalum Pentoxide Waveguides for Optical Propulsion of Microparticles. IEEE Photonics Technology Letters 2009; Volum 21 (19). ISSN 1041-1135.s 1408 - 1410.s doi: 10.1109/LPT.2009.2027025.
- Néel, D.; Gétin, S.; Ferret, P.; Rosina, M.; Fedeli, J. M.; Hellesø, Olav Gaute. Optical transport of semiconductor nanowires on silicon nitride waveguides. Applied Physics Letters 2009; Volum 94 (25). ISSN 0003-6951.s doi: 10.1063/1.3148778.
- Grujic, Katarina; Hellesø, Olav Gaute. Dielectric microsphere manipulation and chain assembly by counter-propagating waves in a channel waveguide. Optics Express 2007; Volum 15 (10). ISSN 1094-4087.s 6470 - 6477.
- Grujic, Katarina; Hole, John Patrick; Hellesø, Olav Gaute; Wilkinson, James S.. Whispering gallery mode excitation in borosilicate glass microspheres by K+ ion-exchanged channel waveguide coupler. SPIE - International Society for Optical Engineering 2006 (6101) ISBN 9780819461438. ISSN 0277-786X.
- Hellesø, Olav Gaute; Grujic, Katarina; Hole, John Patrick; Jaising, Hitesh Y; Wilkinson, James S.. Manipulation of microparticles with integrated optics. SPIE - International Society for Optical Engineering 2006 (6123) ISBN 9780819461650. ISSN 0277-786X.
- Jaising, Hitesh Y; Grujic, Katarina; Hellesø, Olav Gaute. Simulations and velocity measurements for a microparticle in an evanescent field. Optical Review 2005; Volum 12. ISSN 1340-6000.
- Jaising, Hitesh Y; Hellesø, Olav Gaute. Radiation forces on a Mie particle in the evanescent field of an optical waveguide. Optics Communications 2005; Volum 246. ISSN 0030-4018.
- Hole, JP; Wilkinson, JS; Grujic, Katarina; Hellesø, Olav Gaute. Velocity distribution of Gold nanoparticles trapped on an optical waveguide. Optics Express 2005; Volum 13. ISSN 1094-4087.s 3896 - 3901.
- Grujic, Katarina; Hellesø, Olav Gaute; Hole, JP; Wilkinson, JS. Sorting of polystyrene microspheres using a Y-branched optical waveguide. Optics Express 2005; Volum 13 (1). ISSN 1094-4087.s 1 - 7.
- Grujic, Katarina; Hellesø, Olav Gaute; Wilkinson, JS; Hole, JP. Optical propulsion of microspheres along a channel waveguide produced by Cs+ ion-exchange in glass. Optics Communications 2004; Volum 239. ISSN 0030-4018.s 227 - 235.
- Chen, Xuyuan; Pedersen, A.; Hellesø, Olav Gaute; Van Rheenen, Arthur D.. Electrical noise of laser diodes measured over a wide range of bias-currents. Microelectronics and reliability 2000; Volum 40. ISSN 0026-2714.s 1925 - 1928.
- Hellesø, Olav Gaute. Michelson interferometer and reference mirrors integrated on glass. Measurement science and technology 1995 (6). ISSN 0957-0233.s 1362 - 1367.
- Hellesø, Olav Gaute. Propagation losses in poassium ion-exchanged waveguide with superstrate. Applied Optics 1995; Volum 34 (33). ISSN 0003-6935.s 7702 - 7704.
- Hellesø, Olav Gaute. Interferometric displacement sensor made by integrated optics on glass. Sensors and Actuators A-Physical 1995; Volum 47 (1-3). ISSN 0924-4247.s 478 - 481.
- Hellesø, Olav Gaute. Low loss S-bends in K+ ion-exchanged waveguides. IEEE Photonics Technology Letters 1994; Volum 6 (10). ISSN 1041-1135.s 1241 - 1243.
- Hellesø, Olav Gaute. Displacement sensor made by potassium diffusion on glass. Journal of Lightwave Technology 1994; Volum 12 (3). ISSN 0733-8724.s 568 - 572.
- Hellesø, Olav Gaute. Single-mode potassium and silver ion-exchanged glass waveguides with low losses and high index increase. Applied Physics Letters 1992; Volum 61 (23). ISSN 0003-6951.s 2759 - 2760.
- Hellesø, Olav Gaute. Diode laser butt coupling to K+ diffused waveguides in glass. IEEE Photonics Technology Letters 1992; Volum 4 (8). ISSN 1041-1135.s 900 - 902.
- Løvhaugen, Pål; Ahluwalia, Balpreet Singh; Huser, Thomas Rolf; McCourt, Peter Anthony; Hellesø, Olav Gaute. Optical trapping forces on biological cells on a waveguide surface. SPIE - International Society for Optical Engineering 2011 ISBN 9780819484390.
- Lindecrantz, Susan; Hellesø, Olav Gaute. Analysis of Homogeneous Sensitivity of Rib-waveguides of Mach-Zehnder Interferometer. Proceedings of the 16th European Conference on Integrated Optics (ECIO) & The 20th International Workshop on Optical Waveguide Theory and Numerical l Modelling 2012-04-18 - 2012-04-21 2012.
- Lindecrantz, Susan; Hellesø, Olav Gaute. Design of waveguide Mach-Zehnder Interferometer sensor for subsea detection of methane. Optoelectronic Technologies for the Oil and Gas Industry 2011-11-27 - 2011-11-27 2011.
- Hellesø, Olav Gaute. MicroMove: Flytting, karakterisering og sorteringav mikro- og nanopartiklar med lys. Fredagsforedrag ved IFT, Univ. i Bergen 2009-05-08 - 2009.
- Husabø, Bjarne J.; Ahluwalia, Balpreet Singh; Hellesø, Olav Gaute. Q-factor of high refractive index glass microspheres in air and water. Northern Optics 2009 2009-08-26 - 2009-08-28 2009.
- Hellesø, Olav Gaute. MicroMove: Moving, characterising and sorting micro- and nanoparticles with light. Gjesteforelesing ved IET, NTNU 2009-11-19 - 2009.
- Grujic, Katarina; Hellesø, Olav Gaute. Assembly of microsphere chains by counterpropagating, guided waves. European Conference on Integrated Optics 2007-04-25 - 2007-04-27 2007.
- Hellesø, Olav Gaute. Urbane Tromsø søkjer sosiale sivilingeniørar. Nordlys 2007. ISSN 0805-5440.
- Blad, Jakob; Hadzialic, Sanja; Solgaard, Olav; Sudbø, Aasmund Sveinung; Grujic, Katarina; Wilkinson, JS; Hellesø, Olav Gaute; Hole, JP. Nanostrukturar for optikk. Nanoteknologi - nye muligheter for norsk industri 2006-06-08 - 2006-06-08 2006.
- Grujic, Katarina; Hole, John Patrick; Hellesø, Olav Gaute; Wilkinson, James S.. Whispering gallery modes excitation in borosilicate glass microspheres by K+ ion-exchanged channel waveguide coupler. Photonics West 2006-01-21 - 2006-01-26 2006.
- Grujic, Katarina; Hole, John Patrick; Hellesø, Olav Gaute; Wilkinson, James S.. Morphology dependent resonances for a microparticle optically trapped on the surface of a waveguide. Northern Optics 2006-06-14 - 2006-06-16 2006.
- Wilkinson, James S.; Hole, John Patrick; Grujic, Katarina; Hellesø, Olav Gaute. Propulsion and Sorting of Gold Nanospheres on Optical Waveguides. International Conference on Optics-photonics Design & Fabrication 2006-12-06 - 2006-12-08 2006.
- Wilkinson, James S.; Hellesø, Olav Gaute; Hole, John Patrick; Grujic, Katarina. Optical Waveguide Manipulation of Micro- and Nanospheres. Progress in Electromagnetics Research Symposium 2006-03-26 - 2006-03-29 2006.
- Hellesø, Olav Gaute; Grujic, Katarina; Hole, John Patrick; Jaising, Hitesh Y; Wilkinson, James S.. Manipulation of microparticles with integrated optics. Photonics West 2006-01-21 - 2006-01-26 2006.
- Grujic, Katarina; Hellesø, Olav Gaute. Microsphere chain formation in the evanescent field of an optical waveguide. European Conference on Integrated Optics (ECIO) 2005-04-06 - 2005-04-08 2005.
- Grujic, Katarina; Hellesø, Olav Gaute. Guiding and Sorting of Micro- and Nano-Particles with Integrated Optics. CLEO/Europe 2005-06-12 - 2005-06-17 2005.
- Hellesø, Olav Gaute; Grujic, Katarina. Manipulation of microspheres in the evanescent field of an optical waveguide. Fysikermøtet 2005-08-11 - 2005-08-14 2005.
- Hellesø, Olav Gaute; Hanssen, Alfred; Fredriksen, Åshild. NSB-tog i Tromsø. Fra Fysikkens Verden 2005 (3). ISSN 0015-9247.s 71 - 73.
- Jaising, Hitesh Y; Grujic, Katarina; Hellesø, Olav Gaute. Simulations and velocity measurements for a microparticle in an evanescent field. 2004 ICO International Conference on Optics & Photonics in Technology Frontier 2004-07-12 - 2004-07-15 2004.
- Grujic, Katarina; Hellesø, Olav Gaute. Guiding of polystyrene and glass microspheres along Cs+ ion-exchanged waveguides. The Norwegian Electro-optics meeting 2004 2004-05-02 - 2004-05-04 2004.
- Hellesø, Olav Gaute. Bruk av lys til å manipulera, detektera og sortera mikro- og nanopartiklar. Internt seminar, Mat.nat.-fak, UiTø 2003-11-21 - 2003.
- Jaising, Hitesh Y; Grujic, Katarina; Hellesø, Olav Gaute. Integrated Optics Structures for Trapping and Manipulation of Small Particles. Norwegian Electooptics Meeting 2002-01-01 - 2002-01-01 2001.
- Grujic, Katarina; Jaising, Hitesh Y; Hellesø, Olav Gaute. Optimising Waveguide Structure for the Purpose of Particle Trapping.. Norwegian Electro-Optics Meeting 2002-01-01 - 2002-01-01 2001.
- Chen, Xuyuan; Pedersen, A.; Hellesø, Olav Gaute; Van Rheenen, Arthur D.. Electrical noise of laser diodes measured over a wide range of bias-currents.. 15th Inter. Conf. on Noise in Phys. Systems and 1/¦ Fluctuations 1999-01-01 - 1999-01-01 1999.
- Hellesø, Olav Gaute. Interferometric displacement sensor integrated on glass. Optical Fiber Sensors - 9 1993-05-04 - 1993-05-06 1993.
