High-speed terahertz time-domain spectroscopy based on electronically controlled optical sampling
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Kim, Youngchan and Yee, Dae-Su (2010) High-speed terahertz time-domain spectroscopy based on electronically controlled optical sampling Optics Letters, 35 (22). pp. 3715-3717.
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Official URL: http://dx.doi.org/10.1364/OL.35.003715
Abstract
We demonstrate high-speed terahertz (THz) time-domain spectroscopy based on electronically controlled optical sampling (ECOPS). The ECOPS system utilizes two synchronized Ti:sapphire femtosecond lasers with a 100MHz repetition frequency. The time delay between the two laser pulses is demonstrated to be rapidly swept at a scan rate of 1kHz on a time delay window of 77ps by using an external offset voltage applied to a locking electronics. It is shown that a THz pulse can be exactly measured by ECOPS, as is done by asynchronous optical sampling (ASOPS), and the measurement time is shortened by a factor of 50 by using ECOPS compared with ASOPS in the case of employing 100MHz repetition-rate lasers.
| Item Type: | Article | |||||||||
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| Divisions : | Faculty of Health and Medical Sciences > School of Biosciences and Medicine | |||||||||
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| Date : | 2010 | |||||||||
| DOI : | 10.1364/OL.35.003715 | |||||||||
| Copyright Disclaimer : | © 2010 Optical Society of America | |||||||||
| Depositing User : | James Marshall | |||||||||
| Date Deposited : | 30 Jun 2020 08:28 | |||||||||
| Last Modified : | 30 Jun 2020 08:28 | |||||||||
| URI: | http://epubs.surrey.ac.uk/id/eprint/858096 |
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