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High-speed terahertz time-domain spectroscopy based on electronically controlled optical sampling

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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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
Divisions : Faculty of Health and Medical Sciences > School of Biosciences and Medicine
Authors :
NameEmailORCID
Kim, Youngchanyoungchan.kim@surrey.ac.uk
Yee, Dae-Su
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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