Physical Approaches to Designing a Two-Cascade Terahertz Laser Generating Difference-Frequency Radiation in a Nonlinear Optical ZnGeP₂ Crystal

A. I. Gribenyukov, V. V. Dyomin, I. G. Polovtsev, N. N. Yudin

Research output: Contribution to journal › Article

Abstract

An optical layout of a two-cascade frequency converter of the mid-IR laser radiation into the terahertz (THz) radiation is proposed. In the first stage it is assumed to convert the Tm:YLF-laser frequency in a Cr⁺²:ZnSe polycrystal into the radiation with the wavelength ~2–3 μm. The second cascade can be presented as a parametric conversion of the frequencies of two laser sources operating in the ~2–3 μm range into the THz radiation via the difference-frequency mixing in a nonlinear optical ZnGeP₂ crystal. The estimates of the terahertz output signal are reported.

Original language	English
Pages (from-to)	1980-1986
Number of pages	7
Journal	Russian Physics Journal
Volume	60
Issue number	11
DOIs	https://doi.org/10.1007/s11182-018-1311-z
Publication status	Published - 1 Mar 2018
Externally published	Yes

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Keywords

difference frequency generator
nonlinear-parametric frequency conversion
THz range

ASJC Scopus subject areas

Physics and Astronomy(all)

Cite this

Gribenyukov, A. I., Dyomin, V. V., Polovtsev, I. G., & Yudin, N. N. (2018). Physical Approaches to Designing a Two-Cascade Terahertz Laser Generating Difference-Frequency Radiation in a Nonlinear Optical ZnGeP₂ Crystal. Russian Physics Journal, 60(11), 1980-1986. https://doi.org/10.1007/s11182-018-1311-z

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Access to Document

10.1007/s11182-018-1311-z