Tunable ring cavity terahertz parametric oscillator with fixed emission direction

A tunable ring cavity terahertz parametric oscillator with fixed output direction is reported in this paper. The diamond-shaped Stokes beam resonator was designed for the adjustment of the Stokes beam propagation direction while the propagation direction of pump beam was adjusted by two reflection m...

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Bibliographic Details
Published in:Applied physics. B, Lasers and optics Lasers and optics, 2022-08, Vol.128 (8), Article 140
Main Authors: Guo, Quanxin, Fan, Shuzhen, Chen, Xiaohan, Zhang, Xingyu, Cong, Zhenhua, Liu, Zhaojun, Qin, Zengguang, Wang, Zecheng, Ming, Na, Guo, Liyuan
Format: Article
Language:English
Subjects:
Applied physics
Beams (radiation)
Engineering
Lasers
Optical Devices
Optics
Parametric amplifiers
Photonics
Physical Chemistry
Physics
Physics and Astronomy
Propagation
Quantum Optics
Terahertz frequencies
Wave reflection
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Summary:A tunable ring cavity terahertz parametric oscillator with fixed output direction is reported in this paper. The diamond-shaped Stokes beam resonator was designed for the adjustment of the Stokes beam propagation direction while the propagation direction of pump beam was adjusted by two reflection mirrors. The terahertz wave output direction can be always normal to the output surface by controlling the propagation directions of the pump and Stokes beams cooperatively during the frequency tuning in the range of 1.4–2.4 THz.
ISSN:0946-2171
1432-0649
DOI:10.1007/s00340-022-07859-y