Broadband and enhanced nonlinear optical modulation characteristics of CuBTC for pulsed lasers
- 27 September 2021
- journal article
- research article
- Published by Optica Publishing Group in Optical Materials Express
- Vol. 11 (10), 3546-3555
- https://doi.org/10.1364/ome.437408
Abstract
Metal-organic frameworks (MOFs) materials with sufficient charge mobility and promising structural flexibility are appealing for compact optoelectronic nano devices. In this work, the nonlinear optical features of the MOFs-CuBTC were comprehensively investigated for the first time. The CuBTC saturable absorbers were synthesized via liquid-phase exfoliation (LPE) method and characterized for the morphology and structure. The nonlinear optical response of CuBTC was characterized by employing an open-aperture Z-scan technique, which showed the great nonlinear optical modulation potential for the pulsed laser. Thereby, the CuBTC saturable absorber was implemented in the stable passively Q-switched lasers with the operating wavelengths at ∼1 and ∼2 µm to verify its broadband modulation properties, which produced the shortest pulse durations of 131 and 346 ns, respectively. These investigations confirmed that CuBTC can be a promising modulation device candidate for generating short laser pulses in wide spectral regions.Keywords
Funding Information
- National Natural Science Foundation of China (61605100)
- National Key Research and Development Program of China (2016YFB1102201, 2018YFB1107403)
- Taishan Scholar Foundation of Shandong Province (tsqn201812010)
- Young Scholars Program of Shandong University
- Qi Lu Young Scholars Program of Shandong University
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