Image formation using stimulated raman scattering gain
| Autor: | Victor G. Bespalov, E. A. Makarov, D. I. Stasel’ko |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Physics
Image formation Photon business.industry Amplifier Field of view 02 engineering and technology 021001 nanoscience & nanotechnology Laser 01 natural sciences Noise (electronics) Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention 010309 optics symbols.namesake Optics law 0103 physical sciences symbols Photonics 0210 nano-technology business Raman scattering |
| Zdroj: | Optics and Spectroscopy. 121:85-89 |
| ISSN: | 1562-6911 0030-400X |
| DOI: | 10.1134/s0030400x16070079 |
| Popis: | Theoretical analysis of the spatial, noise, and energy characteristics of an amplifier has been performed in the mode of spectral and time selection using subnanosecond stimulated Raman Scattering gain of weak echo signals in crystalline active media that are known for high (up to 10–1 cm/MW) gain coefficients. The possibility to reach high gain values has been demonstrated for weak signals from objects at acceptable angular sizes of the field of vision of an amplifier. To provide a signal-to-noise ratio that exceeds unity over the entire field of vision, the number of photons at the input to an amplifier that is required has to exceed the number of its resolution elements. Accurate determination of the possibilities of recording of weak echo signals and quality of images of targets that are obtained using amplifiers under stimulated Raman Scattering requires additional special experiments. |
| Databáze: | OpenAIRE |
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