Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Morten Thorhauge"'
Autor:
Jiri Janousek, Alexander A. Lagatsky, Jesper Liltorp Mortensen, Christopher G. Leburn, Peter Tidemand-Lichtenberg, Morten Thorhauge, Allan McWilliam, Christian T. A. Brown, Wilson Sibbett, Preben Buchhave
Publikováno v:
Optics Communications. 260:637-640
Efficient generation of continuous-wave (CW) tunable light in the yellow region is reported. The method is based on sum-frequency mixing of a tunable Cr 4+ :forsterite laser with a Nd:YVO 4 laser. A periodically poled lithium niobate crystal was plac
Publikováno v:
CLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference.
Yellow-orange light in the range 580–600 nm is one of the remaining laser lines not reachable by direct emission from solid-state, crystal based laser materials, or by Second Harmonic Generation (SHG). Q-switched sources in this wavelength range ar
Autor:
Martin Kristensen, Anders Harpøth, Lars Hagedorn Frandsen, Andrei V. Lavrinenko, Tapio Niemi, Morten Thorhauge, Harold M. H. Chong, Peter Ingo Borel
Publikováno v:
Technical University of Denmark Orbit
Planar photonic crystal waveguide structures have been modelled using the finite-difference-time-domain method and perfectly matched layers have been employed as boundary conditions. Comprehensive numerical calculations have been performed and compar
Autor:
Yanxin Zhuang, Harold M. H. Chong, Martin Kristensen, Morten Thorhauge, Anders Harpøth, Peter Ingo Borel, Lars Hagedorn Frandsen
Publikováno v:
Optics express. 11(15)
We have investigated the properties of TM polarized light in planar photonic crystal waveguide structures, which exhibit photonic band gaps for TE polarized light. Straight and bent photonic crystal waveguides and couplers have been fabricated in sil
Autor:
Preben Buchhave, Morten Thorhauge, Jesper Rubech Rasmussen, Jesper Liltorp Mortensen, Peter Tidemand-Lichtenberg
Publikováno v:
SPIE Proceedings.
100 mW of coherent blue light with a wavelength of 405 nm was generated utilising a BiB 3 O 6 (BiBO) nonlinear crystal to frequency double a Ti:Sapphire laser. Phase match curves as well as sensitivity to angular misalignment was calculated. The BiBO
Autor:
Jesper Liltorp Mortensen, Preben Buchhave, Morten Thorhauge, Peter Tidemand-Lichtenberg, Jesper Rubech Rasmussen
Publikováno v:
Technical University of Denmark Orbit
Utilising BiBO nonlinear crystal frequency doubling a Ti:Sapphire CW laser gave 100 mW at 405 nm and 53 mW at 392 nm. Stability proved excellent without servo control. Broad tunability was shown around 392 nm.
Publikováno v:
Thorhauge, M, Mortensen, J L, Tidemand-Lichtenberg, P & Buchhave, P 2006, ' Tunable intra-cavity SHG of CW Ti:Sapphire lasers around 785 nm and 810 nm in BiBO-crystals ', Optics Express, vol. 14, no. 6, pp. 2283-2288 . https://doi.org/10.1364/OE.14.002283
Phasematch curves as well as sensitivity to angular and wavelength misalignment for generation of second-harmonic of 785 nm and 810 nm in Bi(3)BO(6) crystal was calculated. Measurements were done for intra-cavity CW SHG in a Ti:Sapphire laser. The Bi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9da1f263919d3db498cceaeda0d388b9
https://orbit.dtu.dk/en/publications/c5837e9e-7722-411b-9985-cf21cf7ae8d0
https://orbit.dtu.dk/en/publications/c5837e9e-7722-411b-9985-cf21cf7ae8d0
Autor:
Lars Hagedorn Frandsen, M. Kampanis, J. Cheng, Andrei V. Lavrinenko, Peter Ingo Borel, Yanxin Zhuang, Harold M. H. Chong, Morten Thorhauge, Martin Kristensen
Publikováno v:
Borel, P I, Thorhauge, M, Frandsen, L H, Cheng, J, Kampanis, M, Kristensen, M, Lavrinenko, A, Zhuang, Y & Chong, H M H 2003, Very high coupling of TM polarised light in photonic crystal directional couplers . in CLEO/Europe . IEEE, 2003 Conference on Lasers and Electro-Optics Europe, Munich, Bavaria, Germany, 22/06/2003 . https://doi.org/10.1109/CLEOE.2003.1313735
The experimental and simulated spectra for TE and TM polarised light for the transmission through photonic crystal directional couplers are presented. The 3D FDTD simulations successfully explain all the major features of the experimental spectra as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::34a836c0acf13f725671589bcef56bcc
https://orbit.dtu.dk/en/publications/9f5ad26e-6a19-47bb-b5b9-0c3abf552e29
https://orbit.dtu.dk/en/publications/9f5ad26e-6a19-47bb-b5b9-0c3abf552e29
Autor:
Johan Wouters, Morten Thorhauge, Vincent Wiaux, Anders Harpøth, Lars Hagedorn Frandsen, Pieter Dumon, Roeland Baets, Yanxin Zhuang, Peter Ingo Borel, Martin Kristensen, Wim Bogaerts, Stephan Beckx
Publikováno v:
Optics Letters. 29:1623
A photonic crystal waveguide splitter that exhibits ultralow-loss 3-dB splitting for TE-polarized light is fabricated in silicon-on-insulator material by use of deep UV lithography. The high performance is achieved by use of a Y junction, which is de
Publikováno v:
Optics Letters. 28:1525
We demonstrate highly efficient and spectrally flat broadband coupling in photonic crystal directional couplers. The result is obtained by use of a novel design with smaller holes between coparallel photonic crystal waveguides for efficient channel-t