Tabiryan, Nelson V. ; Li Kam Wa, P. ; Zel'dovich, Boris Ya. ; Tschudi, Theo T. ; Vogeler, T. (1996)
Characterization of high power laser beams with the aid of nonlinear optical processes.
Third International Workshop on Laser Beam and Optics Characterization. Quebec City, Canada (08.07.1996-10.06.1996)
doi: 10.1117/12.259895
Konferenzveröffentlichung, Bibliographie
Kurzbeschreibung (Abstract)
We have demonstrated both experimentally and theoretically that applying nonlinear optical processes can enable new devices to be realized which allow direct measurement of the power density of laser beams, determination of focal spot location and the beam waist size, as well as visualization and analysis of complex beams' profiles, determination of the beam quality factor and the Strehl ratio. Materials with non-absorptive nonlinearity allow in-line non-distorting measurements. Furthermore, the absence of absorption makes the devices applicable to high power laser beams, and in the focal plane. The resolution of the method is extremely high and is principally limited by the wavelength making possible parallel measurements for a large number of beams. Use of 'intrinsic interference' allows one to obtain high accuracy with simple schemes. We have identified liquid crystals as a highly suitable medium for these purposes due to their giant, non-resonant, and non-absorptive orientational optical nonlinearity.
| Typ des Eintrags: | Konferenzveröffentlichung |
|---|---|
| Erschienen: | 1996 |
| Autor(en): | Tabiryan, Nelson V. ; Li Kam Wa, P. ; Zel'dovich, Boris Ya. ; Tschudi, Theo T. ; Vogeler, T. |
| Art des Eintrags: | Bibliographie |
| Titel: | Characterization of high power laser beams with the aid of nonlinear optical processes |
| Sprache: | Englisch |
| Publikationsjahr: | 1996 |
| Ort: | Bellingham, WA USA |
| Verlag: | Spie |
| Buchtitel: | Third International Workshop on Laser Beam and Optics Characterization |
| Reihe: | SPIE (Society for Photo-Optical Instrumentation Engineers) Proceedings |
| Band einer Reihe: | 2870 |
| Veranstaltungstitel: | Third International Workshop on Laser Beam and Optics Characterization |
| Veranstaltungsort: | Quebec City, Canada |
| Veranstaltungsdatum: | 08.07.1996-10.06.1996 |
| DOI: | 10.1117/12.259895 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | We have demonstrated both experimentally and theoretically that applying nonlinear optical processes can enable new devices to be realized which allow direct measurement of the power density of laser beams, determination of focal spot location and the beam waist size, as well as visualization and analysis of complex beams' profiles, determination of the beam quality factor and the Strehl ratio. Materials with non-absorptive nonlinearity allow in-line non-distorting measurements. Furthermore, the absence of absorption makes the devices applicable to high power laser beams, and in the focal plane. The resolution of the method is extremely high and is principally limited by the wavelength making possible parallel measurements for a large number of beams. Use of 'intrinsic interference' allows one to obtain high accuracy with simple schemes. We have identified liquid crystals as a highly suitable medium for these purposes due to their giant, non-resonant, and non-absorptive orientational optical nonlinearity. |
| Fachbereich(e)/-gebiet(e): | 05 Fachbereich Physik |
| Hinterlegungsdatum: | 19 Nov 2008 15:59 |
| Letzte Änderung: | 18 Okt 2024 08:29 |
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