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Broadband CrOCl Saturable Absorber with a Spectral Region Extension to 10.6 µm

Title data

Wang, Mengxia ; Zhang, Jian ; Wang, Zhengping ; Wang, Ci ; van Smaalen, Sander ; Xiao, Hang ; Chen, Xi ; Du, Chenlin ; Xu, Xinguang ; Tao, Xutang:
Broadband CrOCl Saturable Absorber with a Spectral Region Extension to 10.6 µm.
In: Advanced Optical Materials. Vol. 8 (January 2020) Issue 2 . - No. 1901446.
ISSN 2195-1071
DOI: https://doi.org/10.1002/adom.201901446

Official URL: Volltext

Abstract in another language

Abstract Nonlinear optical (NLO) materials with saturable absorption have attracted increasing attention because of their broad applications in the fields of optical communication, materials processing, biological detection, and surgery. However, their development is limited in the mid-infrared (IR) range due to a lack of available materials with a wideband NLO response. Herein, the optical properties and applications of the transition metal oxychloride CrOCl, which has a broadband transparent region (0.8–18 µm) and a high laser damaged threshold, are studied. The saturable absorption of CrOCl is characterized at 1.06, 1.5, 2.0, 2.5, and 10.6 µm with nanosecond lasers by the Z-scan method. With CrOCl as the saturable absorber (SA), passively Q-switched solid-state lasers are successfully realized at 1.06, 1.33, and 1.87 µm. This study is the first to report the use of a Cr3+ material as an optical SA. The high transmittance and wideband NLO response of CrOCl indicate that CrOCl can be an excellent NLO IR material with extensive application potential in photonics.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: Broadband transparent region; CrOCl; Passively Q-switched lasers; Saturable absorption
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Chair Crystallography
Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Chair Crystallography > Chair Crystallography - Univ.-Prof. Dr. Sander van Smaalen
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 02 Sep 2020 06:33
Last Modified: 02 Sep 2020 06:33
URI: https://eref.uni-bayreuth.de/id/eprint/56706