Characteristics of transition metal dichalcogenides in optical pumped modulator of terahertz wave

To study the characteristics of transition metal dichalcogenides (TMDCs) in the THz regime, several kinds of terahertz modulators based on TMDCs were fabricated. The properties of these terahertz modulators were measured on a terahertz time-domain spectroscopy system. An 808-nm laser was used as the...

Full description

Bibliographic Details
Main Authors:	Zhiyuan Fan, Zhaoxin Geng, Weihao Fang, Xiaoqing Lv, Yue Su, Shicai Wang, Jian Liu, Hongda Chen
Format:	Article
Language:	English
Published:	AIP Publishing LLC 2020-04-01
Series:	AIP Advances
Online Access:	http://dx.doi.org/10.1063/1.5141511

id	doaj-394e3139bbc6491c8429333373dd757f
record_format	Article
spelling	doaj-394e3139bbc6491c8429333373dd757f2020-11-25T02:01:57ZengAIP Publishing LLCAIP Advances2158-32262020-04-01104045304045304-910.1063/1.5141511Characteristics of transition metal dichalcogenides in optical pumped modulator of terahertz waveZhiyuan Fan0Zhaoxin Geng1Weihao Fang2Xiaoqing Lv3Yue Su4Shicai Wang5Jian Liu6Hongda Chen7Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, ChinaState Key Laboratory of Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, ChinaCenter of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, ChinaCenter of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, ChinaCenter of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, ChinaState Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, ChinaCenter of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, ChinaCenter of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, ChinaTo study the characteristics of transition metal dichalcogenides (TMDCs) in the THz regime, several kinds of terahertz modulators based on TMDCs were fabricated. The properties of these terahertz modulators were measured on a terahertz time-domain spectroscopy system. An 808-nm laser was used as the controller of the THz modulator. Briefly, as the power of the pumping laser increased, the amplitude of the transmission THz wave decreased. To explain these results, an analysis based on photoconductivity was presented. Additionally, the influence of the boundary defects was pointed out to give further explanation about the working mechanism of the TMDC-based THz modulator. Based on this analysis, most of the behavior of TMDCs in THz modulators could be understood.http://dx.doi.org/10.1063/1.5141511
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Zhiyuan Fan Zhaoxin Geng Weihao Fang Xiaoqing Lv Yue Su Shicai Wang Jian Liu Hongda Chen
spellingShingle	Zhiyuan Fan Zhaoxin Geng Weihao Fang Xiaoqing Lv Yue Su Shicai Wang Jian Liu Hongda Chen Characteristics of transition metal dichalcogenides in optical pumped modulator of terahertz wave AIP Advances
author_facet	Zhiyuan Fan Zhaoxin Geng Weihao Fang Xiaoqing Lv Yue Su Shicai Wang Jian Liu Hongda Chen
author_sort	Zhiyuan Fan
title	Characteristics of transition metal dichalcogenides in optical pumped modulator of terahertz wave
title_short	Characteristics of transition metal dichalcogenides in optical pumped modulator of terahertz wave
title_full	Characteristics of transition metal dichalcogenides in optical pumped modulator of terahertz wave
title_fullStr	Characteristics of transition metal dichalcogenides in optical pumped modulator of terahertz wave
title_full_unstemmed	Characteristics of transition metal dichalcogenides in optical pumped modulator of terahertz wave
title_sort	characteristics of transition metal dichalcogenides in optical pumped modulator of terahertz wave
publisher	AIP Publishing LLC
series	AIP Advances
issn	2158-3226
publishDate	2020-04-01
description	To study the characteristics of transition metal dichalcogenides (TMDCs) in the THz regime, several kinds of terahertz modulators based on TMDCs were fabricated. The properties of these terahertz modulators were measured on a terahertz time-domain spectroscopy system. An 808-nm laser was used as the controller of the THz modulator. Briefly, as the power of the pumping laser increased, the amplitude of the transmission THz wave decreased. To explain these results, an analysis based on photoconductivity was presented. Additionally, the influence of the boundary defects was pointed out to give further explanation about the working mechanism of the TMDC-based THz modulator. Based on this analysis, most of the behavior of TMDCs in THz modulators could be understood.
url	http://dx.doi.org/10.1063/1.5141511
work_keys_str_mv	AT zhiyuanfan characteristicsoftransitionmetaldichalcogenidesinopticalpumpedmodulatorofterahertzwave AT zhaoxingeng characteristicsoftransitionmetaldichalcogenidesinopticalpumpedmodulatorofterahertzwave AT weihaofang characteristicsoftransitionmetaldichalcogenidesinopticalpumpedmodulatorofterahertzwave AT xiaoqinglv characteristicsoftransitionmetaldichalcogenidesinopticalpumpedmodulatorofterahertzwave AT yuesu characteristicsoftransitionmetaldichalcogenidesinopticalpumpedmodulatorofterahertzwave AT shicaiwang characteristicsoftransitionmetaldichalcogenidesinopticalpumpedmodulatorofterahertzwave AT jianliu characteristicsoftransitionmetaldichalcogenidesinopticalpumpedmodulatorofterahertzwave AT hongdachen characteristicsoftransitionmetaldichalcogenidesinopticalpumpedmodulatorofterahertzwave
_version_	1724954902045655040

Characteristics of transition metal dichalcogenides in optical pumped modulator of terahertz wave

Similar Items