Efficient terahertz generation in highly nonlinear organic crystal HMB-TMS
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oe-26-23-30786.pdf
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3.24 MB
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Author(s)
Lee, Seung-Chul
Han, Jae-Hyun
Kown, O-Pil
Nelson, Keith A.
Lu, Jian
Lee, SeungHeon
Li, Xian
Date Issued
November 2018
Journal
Optics Express
Publisher
Optical Society of America
Citation
Lu, Jian, Seung-Heon Lee, Xian Li, Seung-Chul Lee, Jae-Hyun Han, O-Pil Kown, and Keith A. Nelson. “Efficient Terahertz Generation in Highly Nonlinear Organic Crystal HMB-TMS.” Optics Express 26, no. 23 (November 8, 2018): 30786.
Version
Final published version
Abstract
We report on generation of strong and broadband terahertz (THz) pulses via collinearly phase-matched optical rectification of near-infrared femtosecond pulses in the organic nonlinear optical HMB-TMS (2-(4-hydroxy-3-methoxystyryl)-3-methylbenzo[d]thiazol-3-ium 2,4,6-trimethylbenzenesulfonate) single crystals which exhibit optimal molecular orientation and large macroscopic optical nonlinearity for efficient THz wave generation. Single-cycle THz pulses with a peak electric field strength of 0.66 MV/cm and a bandwidth from 0.1 to 5.4 THz are achieved from an HMB-TMS crystal with only a 2-mm clear aperture pumped by 1350 nm pulses at moderate fluences. The generated THz energy is about 1 µJ and the corresponding pump-to-THz energy conversion efficiency reaches 0.23%.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
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DOI of Published Version
https://doi.org/10.1364/OE.26.030786
