A Study on Narrow-band THz (Terahertz) Source with Adjustable Center Frequency Based on Optical Rectification
Ling Zhou1, Xiang-wen Li1, Jiang-ming Kuang1, Shuang Zhang*, 1, 2, Yi-he Liu*, 2
1 The Engineering & Technical College of Chengdu University of Technology, Leshan, 614000, P.R. China
2 College of Computer Science, Neijiang Normal University, Neijiang, 641000, P.R. China
Abstract
The center frequency of the narrow-band THz wave is always unstable with the optical rectification methods. Therefore, the high-phase stable time-delay generator Etalon and the parallel grating pair compressor with the self-adaptive optical path compensation function are designed according to the principle that two lasers in different paths will result in specific relative time delay; with LiNbO3 waveguide sample as the optical rectification crystal, the quasi-multi-cycle narrow-band THz wave generating platform is set up based on the two chirp-delay schemes (one Compressor in the pump branch and another Compressor in the probe branch) Both schemes can generate narrow-band THz waves with adjustable center frequency from 0.25~1.2THz. The bandwidth is 100GHz, with good frequency stability.
Keywords: Chirped pulse, Compressor, Narrow-band, Optical rectification, THz.
Article Information
Article History:
Received Date: 31/03/2016
Revision Received Date: 18/07/2016
Acceptance Date: 17/08/2016
Electronic publication date: 13/10/2016
Collection year: 2016
© Zhou et al.; Licensee Bentham Open
open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution-Non-Commercial 4.0 International Public License (CC BY-NC 4.0) (
https://creativecommons.org/licenses/by-nc/4.0/legalcode), which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.
*
Address correspondence to these authors at the College of Computer Science, Neijiang Normal University, Neijiang, 641000, P.R. China; Tel: +86 832 2343466; Fax: +86 832 2340320; E-mails: zhangshuanghua1@126.com, liu_yihe@163.com.
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Manuscript submitted on 31-03-2016 |
Original Manuscript |
A Study on Narrow-band THz (Terahertz) Source with Adjustable Center Frequency Based on Optical Rectification |