5–13.5 μm broadband tunable long-wave infrared femtosecond laser

Author:

Liu Yunpeng12ORCID,Qian Junyu1ORCID,Feng Renyu13,Li Wenkai1ORCID,Li Yanyan1,Peng Yujie1ORCID,Leng Yuxin1ORCID

Affiliation:

1. State Key Laboratory of High Field Laser Physics and CAS Center for Excellence in Ultra-intense Laser Science, Shanghai Institute of Optics and Fine Mechanics (SIOM), Chinese Academy of Sciences (CAS) 1 , Shanghai 201800, China

2. School of Physical Science and Technology, ShanghaiTech University 2 , Shanghai 201210, China

3. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences 3 , Beijing 100049, China

Abstract

We introduce a broadband tunable femtosecond laser source in the long-wave infrared (LWIR) band, covering the range of 5–13.5 μm, based on the integration of optical parametric amplification and difference frequency generation techniques. We utilize a dual-stage tuning method, combined with the high nonlinear coefficient and broadband phase matching range of the BaGa4Se7 crystal, to facilitate significant improvements in spectral coverage and energy efficiency. The laser yields a peak output energy of 43 μJ and maintains energies above 10 μJ across the entire tuning range, with an average power output exceeding 10 mW. The pulse duration at the central wavelength of 8.3 μm is measured at 72 fs full width at half-maximum using the electro-optic sampling method. This LWIR femtosecond laser can be used in many applications, such as molecular fingerprint spectral analysis, ultrafast chemical reaction spectral analysis, materials science, and ultrafast physics research, providing an important research basis for the generation and application of mid-infrared ultrafast laser sources.

Funder

National Key Research and Development Program of China

National Natural Science Foundation of China

Youth Innovation Promotion Association of the Chinese Academy of Sciences

Shanghai Rising-Star Program

Talent Plan of Shanghai Branch, Chinese Academy of Sciences

the Postdoctoral Fellowship Program of CPSF

Publisher

AIP Publishing

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3