Dynamic control of coherent pulses via destructive interference in graphene under Landau quantization

Abstract We analyze the destructive interference in monolayer graphene under Landau quantization in a time-dependent way by using the Bloch-Maxwell formalism. Based on this analysis, we investigate the dynamics control of an infrared probe and a terahertz (THz) switch pulses in graphene. In presence...

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Autores principales:	Wen-Xing Yang, Ai-Xi Chen, Xiao-Tao Xie, Shaopeng Liu, Shasha Liu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/42f86670c0c3409580c128f6efaa85cc
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spelling	oai:doaj.org-article:42f86670c0c3409580c128f6efaa85cc2021-12-02T16:06:52ZDynamic control of coherent pulses via destructive interference in graphene under Landau quantization10.1038/s41598-017-02740-x2045-2322https://doaj.org/article/42f86670c0c3409580c128f6efaa85cc2017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-02740-xhttps://doaj.org/toc/2045-2322Abstract We analyze the destructive interference in monolayer graphene under Landau quantization in a time-dependent way by using the Bloch-Maxwell formalism. Based on this analysis, we investigate the dynamics control of an infrared probe and a terahertz (THz) switch pulses in graphene. In presence of the THz switch pulse, the destructive interference take places and can be optimized so that the monolayer graphene is completely transparent to the infrared probe pulse. In absence of the THz switch pulse, however, the infrared probe pulse is absorbed due to such a interference does not take place. Furthermore, we provide a clear physics insight of this destructive interference by using the classical dressed-state theory. Conversely, the present model may be rendered either absorbing or transparent to the THz switch pulse. By choosing appropriate wave form of the probe and switch pulses, we show that both infrared probe and THz switch pulses exhibit the steplike transitions between absorption and transparency. Such steplike transitions can be used to devise a versatile quantum interference-based solid-state optical switching with distinct wave-lengths for optical communication devices.Wen-Xing YangAi-Xi ChenXiao-Tao XieShaopeng LiuShasha LiuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-12 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Wen-Xing Yang Ai-Xi Chen Xiao-Tao Xie Shaopeng Liu Shasha Liu Dynamic control of coherent pulses via destructive interference in graphene under Landau quantization
description	Abstract We analyze the destructive interference in monolayer graphene under Landau quantization in a time-dependent way by using the Bloch-Maxwell formalism. Based on this analysis, we investigate the dynamics control of an infrared probe and a terahertz (THz) switch pulses in graphene. In presence of the THz switch pulse, the destructive interference take places and can be optimized so that the monolayer graphene is completely transparent to the infrared probe pulse. In absence of the THz switch pulse, however, the infrared probe pulse is absorbed due to such a interference does not take place. Furthermore, we provide a clear physics insight of this destructive interference by using the classical dressed-state theory. Conversely, the present model may be rendered either absorbing or transparent to the THz switch pulse. By choosing appropriate wave form of the probe and switch pulses, we show that both infrared probe and THz switch pulses exhibit the steplike transitions between absorption and transparency. Such steplike transitions can be used to devise a versatile quantum interference-based solid-state optical switching with distinct wave-lengths for optical communication devices.
format	article
author	Wen-Xing Yang Ai-Xi Chen Xiao-Tao Xie Shaopeng Liu Shasha Liu
author_facet	Wen-Xing Yang Ai-Xi Chen Xiao-Tao Xie Shaopeng Liu Shasha Liu
author_sort	Wen-Xing Yang
title	Dynamic control of coherent pulses via destructive interference in graphene under Landau quantization
title_short	Dynamic control of coherent pulses via destructive interference in graphene under Landau quantization
title_full	Dynamic control of coherent pulses via destructive interference in graphene under Landau quantization
title_fullStr	Dynamic control of coherent pulses via destructive interference in graphene under Landau quantization
title_full_unstemmed	Dynamic control of coherent pulses via destructive interference in graphene under Landau quantization
title_sort	dynamic control of coherent pulses via destructive interference in graphene under landau quantization
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/42f86670c0c3409580c128f6efaa85cc
work_keys_str_mv	AT wenxingyang dynamiccontrolofcoherentpulsesviadestructiveinterferenceingrapheneunderlandauquantization AT aixichen dynamiccontrolofcoherentpulsesviadestructiveinterferenceingrapheneunderlandauquantization AT xiaotaoxie dynamiccontrolofcoherentpulsesviadestructiveinterferenceingrapheneunderlandauquantization AT shaopengliu dynamiccontrolofcoherentpulsesviadestructiveinterferenceingrapheneunderlandauquantization AT shashaliu dynamiccontrolofcoherentpulsesviadestructiveinterferenceingrapheneunderlandauquantization
_version_	1718384837525504000

Dynamic control of coherent pulses via destructive interference in graphene under Landau quantization

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