Abstract:
An experimental investigation was made of a detector of submillimeter radiation utilizing a difference frequency generated as a result of stimulated scattering by polaritons in a crystal of lithium niobate. When the pump pulse duration was 2τp = 18 nsec and the cross-sectional area of the pump beam was Qp=0.17 cm2, about 4×105 photons with frequencies in the range 25–35 cm–1 were detected in a solid angle Ω = 10 msr for the signal/noise ratio of 5. The experimental results were in qualitative agreement with theoretical estimates obtained allowing for the finite apertures of the interacting waves.
Citation:
A. A. Babin, V. N. Petryakov, G. I. Freidman, “Use of stimulated scattering by polaritons in detection of submillimeter radiation”, Kvantovaya Elektronika, 10:7 (1983), 1472–1474 [Sov J Quantum Electron, 13:7 (1983), 958–960]
Linking options:
https://www.mathnet.ru/eng/qe4534
https://www.mathnet.ru/eng/qe/v10/i7/p1472
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