Zobrazeno 1 - 10
of 48
pro vyhledávání: '"R. M. Jenkins"'
Publikováno v:
SPIE Proceedings.
Hollow waveguide technology is a route to efficient beam combining of multiple laser sources in a compact footprint. It is a technology appropriate for combining free-space or fibre-coupled beams generated by semiconductor, fibre or solidstate laser
Publikováno v:
Journal of Modern Optics. 45:1613-1627
Publikováno v:
2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference CLEO EUROPE/IQEC.
Summary form only given. In earlier work we demonstrated the use of hollow waveguides to guide light between the individual components of an optical circuit integrated into a common substrate [1]. The approach leads to compact rugged systems with exc
Publikováno v:
Optics Communications. 110:410-424
A novel form of Mach-Zehnder interferometer based on multimode interference (MMI) phenomena in multimode waveguides is predicted and demonstrated. The interferometer is based on symmetrically feeding fundamental mode fields from two square waveguides
Autor:
Youfang Hu, R. M. Jenkins, Frederic Y. Gardes, E. D. Finlayson, Goran Z. Mashanovich, Graham T. Reed
Publikováno v:
IEEE Photonic Society 24th Annual Meeting.
We designed and experimentally demonstrated two new types of self-imaging MMIs. One worked as a WDM device and the other worked as a wavelength filter.
Autor:
Frederic Y. Gardes, E. D. Finlayson, Goran Z. Mashanovich, R. M. Jenkins, Graham T. Reed, Youfang Hu
Publikováno v:
8th IEEE International Conference on Group IV Photonics.
We experimentally demonstrated a novel SOI based 4-channel coarse wavelength demultiplexer with tilted in/output MMI structure. It has an FSR of ∼100nm, a cross talk of
Publikováno v:
Applied optics. 34(16)
Waveguide gas lasers (CO(2) ones especially) continue to be widely used. We have previously studied simple resonator designs with plane mirrors close to each end of the waveguide. Here we examine theoretical predictions concerning hybrid waveguide/fr
Autor:
R. M. Jenkins, Thomas F. Krauss, Thomas P. White, L. Lever, Zoran Ikonic, Goran Z. Mashanovich, Branislav Timotijevic, E. Findlayson, David R. Leadley, Graham T. Reed, Robert W. Kelsall, A. Valvanis, Liam O'Faolain, N. M. Wright
Publikováno v:
SPIE Proceedings.
The project is a consortium based activity involving researchers from the UK institutions of the Universities of Surrey, St. Andrews, Leeds, Warwick, and Southampton, as well as the commercial research institution QinetiQ. The aims of the project are
Autor:
Juha Palve, Kari Kautio, Mark Edward Mcnie, Kimmo Keränen, Mikko Heikkinen, Jyrki Ollila, Ismo Kauppinen, Tom Kuusela, R. M. Jenkins, Pentti Karioja, B. A. Matveev
Publikováno v:
Karioja, P, Keränen, K, Kautio, K, Ollila, J, Heikkinen, M, Kauppinen, I, Kuusela, T, Matveev, B, McNie, M E, Jenkins, R M & Palve, J 2010, LTCC-based differential photo acoustic cell for ppm gas sensing . in Optical Sensing and Detection . Proceedings of SPIE, vol. 7726, SPIE Photonics Europe 2010, Brussels, Belgium, 12/04/10 . https://doi.org/10.1117/12.851854
Silicon MEMS cantilever-based photoacoustic technology allows for the sensing of ultra low gas concentrations with very wide dynamic range. The sensitivity enhancement is achieved with a cantilever microphone system in which the cantilever displaceme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f806aeab3cc841459ecb51174305503
https://cris.vtt.fi/en/publications/0c6f04e3-1b83-4eb6-a856-8dfe63f7e295
https://cris.vtt.fi/en/publications/0c6f04e3-1b83-4eb6-a856-8dfe63f7e295
Autor:
Jyrki Ollila, Kari Kautio, Mikko Heikkinen, Kimmo Keränen, Tom Kuusela, Ismo Kauppinen, Mark Edward Mcnie, Pentti Karioja, B. A. Matveev, R. M. Jenkins
Publikováno v:
Keränen, K, Kautio, K, Ollila, J, Heikkinen, M, Kauppinen, I, Kuusela, T, Matveev, B, McNie, M E, Jenkins, R M & Karioja, P 2010, Differential photoacoustic gas cell based on LTCC for ppm gas sensing . in Proceedings of the SPIE : Optoelectronic Interconnects and Component Integration IX ., 760714, International Society for Optics and Photonics SPIE, Proceedings of SPIE, vol. 7607, Optoelectronic Interconnects and Component Integration IX, San Francisco, CA, United States, 25/01/10 . https://doi.org/10.1117/12.841363
Silicon MEMS cantilever-based photoacoustic technology allows for the sensing of ultra low gas concentrations with very wide dynamic range. The sensitivity enhancement is achieved with a cantilever microphone system in which the cantilever displaceme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::05a740ade7752b16a92124a746d61a1d
https://cris.vtt.fi/en/publications/e1adf656-7ea7-4be5-90e1-e91dc9f4c66d
https://cris.vtt.fi/en/publications/e1adf656-7ea7-4be5-90e1-e91dc9f4c66d