Optically Controlling Broadband Terahertz Modulator Based on Layer-Dependent PtSe<sub<2</sub< Nanofilms
In this paper, we propose an optically controlling broadband terahertz modulator of a layer-dependent PtSe<sub<2</sub< nanofilm based on a high-resistance silicon substrate. Through optical pump and terahertz probe system, the results show that compared with 6-, 10-, and 20-layer films,...
Ausführliche Beschreibung
Autor*in: |
Hong Su [verfasserIn] Zesong Zheng [verfasserIn] Zhisheng Yu [verfasserIn] Shiping Feng [verfasserIn] Huiting Lan [verfasserIn] Shixing Wang [verfasserIn] Min Zhang [verfasserIn] Ling Li [verfasserIn] Huawei Liang [verfasserIn] |
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E-Artikel |
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Sprache: |
Englisch |
Erschienen: |
2023 |
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Übergeordnetes Werk: |
In: Nanomaterials - MDPI AG, 2012, 13(2023), 5, p 795 |
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Übergeordnetes Werk: |
volume:13 ; year:2023 ; number:5, p 795 |
Links: |
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DOI / URN: |
10.3390/nano13050795 |
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Katalog-ID: |
DOAJ087985624 |
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10.3390/nano13050795 doi (DE-627)DOAJ087985624 (DE-599)DOAJbc64a600439f4bea96ccb9d9d9824b64 DE-627 ger DE-627 rakwb eng QD1-999 Hong Su verfasserin aut Optically Controlling Broadband Terahertz Modulator Based on Layer-Dependent PtSe<sub<2</sub< Nanofilms 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In this paper, we propose an optically controlling broadband terahertz modulator of a layer-dependent PtSe<sub<2</sub< nanofilm based on a high-resistance silicon substrate. Through optical pump and terahertz probe system, the results show that compared with 6-, 10-, and 20-layer films, a 3-layer PtSe<sub<2</sub< nanofilm has better surface photoconductivity in the terahertz band and has a higher plasma frequency <i<ω<sub<p</sub<</i< of 0.23 THz and a lower scattering time <i<τ<sub<s</sub<</i< of 70 fs by Drude–Smith fitting. By the terahertz time-domain spectroscopy system, the broadband amplitude modulation of a 3-layer PtSe<sub<2</sub< film in the range of 0.1–1.6 THz was obtained, and the modulation depth reached 50.9% at a pump density of 2.5 W/cm<sup<2</sup<. This work proves that PtSe<sub<2</sub< nanofilm devices are suitable for terahertz modulators. terahertz modulator photoconductivity PtSe<sub<2</sub< Chemistry Zesong Zheng verfasserin aut Zhisheng Yu verfasserin aut Shiping Feng verfasserin aut Huiting Lan verfasserin aut Shixing Wang verfasserin aut Min Zhang verfasserin aut Ling Li verfasserin aut Huawei Liang verfasserin aut In Nanomaterials MDPI AG, 2012 13(2023), 5, p 795 (DE-627)718627199 (DE-600)2662255-5 20794991 nnns volume:13 year:2023 number:5, p 795 https://doi.org/10.3390/nano13050795 kostenfrei https://doaj.org/article/bc64a600439f4bea96ccb9d9d9824b64 kostenfrei https://www.mdpi.com/2079-4991/13/5/795 kostenfrei https://doaj.org/toc/2079-4991 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 13 2023 5, p 795 |
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10.3390/nano13050795 doi (DE-627)DOAJ087985624 (DE-599)DOAJbc64a600439f4bea96ccb9d9d9824b64 DE-627 ger DE-627 rakwb eng QD1-999 Hong Su verfasserin aut Optically Controlling Broadband Terahertz Modulator Based on Layer-Dependent PtSe<sub<2</sub< Nanofilms 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In this paper, we propose an optically controlling broadband terahertz modulator of a layer-dependent PtSe<sub<2</sub< nanofilm based on a high-resistance silicon substrate. Through optical pump and terahertz probe system, the results show that compared with 6-, 10-, and 20-layer films, a 3-layer PtSe<sub<2</sub< nanofilm has better surface photoconductivity in the terahertz band and has a higher plasma frequency <i<ω<sub<p</sub<</i< of 0.23 THz and a lower scattering time <i<τ<sub<s</sub<</i< of 70 fs by Drude–Smith fitting. By the terahertz time-domain spectroscopy system, the broadband amplitude modulation of a 3-layer PtSe<sub<2</sub< film in the range of 0.1–1.6 THz was obtained, and the modulation depth reached 50.9% at a pump density of 2.5 W/cm<sup<2</sup<. This work proves that PtSe<sub<2</sub< nanofilm devices are suitable for terahertz modulators. terahertz modulator photoconductivity PtSe<sub<2</sub< Chemistry Zesong Zheng verfasserin aut Zhisheng Yu verfasserin aut Shiping Feng verfasserin aut Huiting Lan verfasserin aut Shixing Wang verfasserin aut Min Zhang verfasserin aut Ling Li verfasserin aut Huawei Liang verfasserin aut In Nanomaterials MDPI AG, 2012 13(2023), 5, p 795 (DE-627)718627199 (DE-600)2662255-5 20794991 nnns volume:13 year:2023 number:5, p 795 https://doi.org/10.3390/nano13050795 kostenfrei https://doaj.org/article/bc64a600439f4bea96ccb9d9d9824b64 kostenfrei https://www.mdpi.com/2079-4991/13/5/795 kostenfrei https://doaj.org/toc/2079-4991 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 13 2023 5, p 795 |
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10.3390/nano13050795 doi (DE-627)DOAJ087985624 (DE-599)DOAJbc64a600439f4bea96ccb9d9d9824b64 DE-627 ger DE-627 rakwb eng QD1-999 Hong Su verfasserin aut Optically Controlling Broadband Terahertz Modulator Based on Layer-Dependent PtSe<sub<2</sub< Nanofilms 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In this paper, we propose an optically controlling broadband terahertz modulator of a layer-dependent PtSe<sub<2</sub< nanofilm based on a high-resistance silicon substrate. Through optical pump and terahertz probe system, the results show that compared with 6-, 10-, and 20-layer films, a 3-layer PtSe<sub<2</sub< nanofilm has better surface photoconductivity in the terahertz band and has a higher plasma frequency <i<ω<sub<p</sub<</i< of 0.23 THz and a lower scattering time <i<τ<sub<s</sub<</i< of 70 fs by Drude–Smith fitting. By the terahertz time-domain spectroscopy system, the broadband amplitude modulation of a 3-layer PtSe<sub<2</sub< film in the range of 0.1–1.6 THz was obtained, and the modulation depth reached 50.9% at a pump density of 2.5 W/cm<sup<2</sup<. This work proves that PtSe<sub<2</sub< nanofilm devices are suitable for terahertz modulators. terahertz modulator photoconductivity PtSe<sub<2</sub< Chemistry Zesong Zheng verfasserin aut Zhisheng Yu verfasserin aut Shiping Feng verfasserin aut Huiting Lan verfasserin aut Shixing Wang verfasserin aut Min Zhang verfasserin aut Ling Li verfasserin aut Huawei Liang verfasserin aut In Nanomaterials MDPI AG, 2012 13(2023), 5, p 795 (DE-627)718627199 (DE-600)2662255-5 20794991 nnns volume:13 year:2023 number:5, p 795 https://doi.org/10.3390/nano13050795 kostenfrei https://doaj.org/article/bc64a600439f4bea96ccb9d9d9824b64 kostenfrei https://www.mdpi.com/2079-4991/13/5/795 kostenfrei https://doaj.org/toc/2079-4991 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 13 2023 5, p 795 |
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10.3390/nano13050795 doi (DE-627)DOAJ087985624 (DE-599)DOAJbc64a600439f4bea96ccb9d9d9824b64 DE-627 ger DE-627 rakwb eng QD1-999 Hong Su verfasserin aut Optically Controlling Broadband Terahertz Modulator Based on Layer-Dependent PtSe<sub<2</sub< Nanofilms 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In this paper, we propose an optically controlling broadband terahertz modulator of a layer-dependent PtSe<sub<2</sub< nanofilm based on a high-resistance silicon substrate. Through optical pump and terahertz probe system, the results show that compared with 6-, 10-, and 20-layer films, a 3-layer PtSe<sub<2</sub< nanofilm has better surface photoconductivity in the terahertz band and has a higher plasma frequency <i<ω<sub<p</sub<</i< of 0.23 THz and a lower scattering time <i<τ<sub<s</sub<</i< of 70 fs by Drude–Smith fitting. By the terahertz time-domain spectroscopy system, the broadband amplitude modulation of a 3-layer PtSe<sub<2</sub< film in the range of 0.1–1.6 THz was obtained, and the modulation depth reached 50.9% at a pump density of 2.5 W/cm<sup<2</sup<. This work proves that PtSe<sub<2</sub< nanofilm devices are suitable for terahertz modulators. terahertz modulator photoconductivity PtSe<sub<2</sub< Chemistry Zesong Zheng verfasserin aut Zhisheng Yu verfasserin aut Shiping Feng verfasserin aut Huiting Lan verfasserin aut Shixing Wang verfasserin aut Min Zhang verfasserin aut Ling Li verfasserin aut Huawei Liang verfasserin aut In Nanomaterials MDPI AG, 2012 13(2023), 5, p 795 (DE-627)718627199 (DE-600)2662255-5 20794991 nnns volume:13 year:2023 number:5, p 795 https://doi.org/10.3390/nano13050795 kostenfrei https://doaj.org/article/bc64a600439f4bea96ccb9d9d9824b64 kostenfrei https://www.mdpi.com/2079-4991/13/5/795 kostenfrei https://doaj.org/toc/2079-4991 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 13 2023 5, p 795 |
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10.3390/nano13050795 doi (DE-627)DOAJ087985624 (DE-599)DOAJbc64a600439f4bea96ccb9d9d9824b64 DE-627 ger DE-627 rakwb eng QD1-999 Hong Su verfasserin aut Optically Controlling Broadband Terahertz Modulator Based on Layer-Dependent PtSe<sub<2</sub< Nanofilms 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier In this paper, we propose an optically controlling broadband terahertz modulator of a layer-dependent PtSe<sub<2</sub< nanofilm based on a high-resistance silicon substrate. Through optical pump and terahertz probe system, the results show that compared with 6-, 10-, and 20-layer films, a 3-layer PtSe<sub<2</sub< nanofilm has better surface photoconductivity in the terahertz band and has a higher plasma frequency <i<ω<sub<p</sub<</i< of 0.23 THz and a lower scattering time <i<τ<sub<s</sub<</i< of 70 fs by Drude–Smith fitting. By the terahertz time-domain spectroscopy system, the broadband amplitude modulation of a 3-layer PtSe<sub<2</sub< film in the range of 0.1–1.6 THz was obtained, and the modulation depth reached 50.9% at a pump density of 2.5 W/cm<sup<2</sup<. This work proves that PtSe<sub<2</sub< nanofilm devices are suitable for terahertz modulators. terahertz modulator photoconductivity PtSe<sub<2</sub< Chemistry Zesong Zheng verfasserin aut Zhisheng Yu verfasserin aut Shiping Feng verfasserin aut Huiting Lan verfasserin aut Shixing Wang verfasserin aut Min Zhang verfasserin aut Ling Li verfasserin aut Huawei Liang verfasserin aut In Nanomaterials MDPI AG, 2012 13(2023), 5, p 795 (DE-627)718627199 (DE-600)2662255-5 20794991 nnns volume:13 year:2023 number:5, p 795 https://doi.org/10.3390/nano13050795 kostenfrei https://doaj.org/article/bc64a600439f4bea96ccb9d9d9824b64 kostenfrei https://www.mdpi.com/2079-4991/13/5/795 kostenfrei https://doaj.org/toc/2079-4991 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2108 GBV_ILN_2119 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 13 2023 5, p 795 |
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Optically Controlling Broadband Terahertz Modulator Based on Layer-Dependent PtSe<sub<2</sub< Nanofilms |
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In this paper, we propose an optically controlling broadband terahertz modulator of a layer-dependent PtSe<sub<2</sub< nanofilm based on a high-resistance silicon substrate. Through optical pump and terahertz probe system, the results show that compared with 6-, 10-, and 20-layer films, a 3-layer PtSe<sub<2</sub< nanofilm has better surface photoconductivity in the terahertz band and has a higher plasma frequency <i<ω<sub<p</sub<</i< of 0.23 THz and a lower scattering time <i<τ<sub<s</sub<</i< of 70 fs by Drude–Smith fitting. By the terahertz time-domain spectroscopy system, the broadband amplitude modulation of a 3-layer PtSe<sub<2</sub< film in the range of 0.1–1.6 THz was obtained, and the modulation depth reached 50.9% at a pump density of 2.5 W/cm<sup<2</sup<. This work proves that PtSe<sub<2</sub< nanofilm devices are suitable for terahertz modulators. |
abstractGer |
In this paper, we propose an optically controlling broadband terahertz modulator of a layer-dependent PtSe<sub<2</sub< nanofilm based on a high-resistance silicon substrate. Through optical pump and terahertz probe system, the results show that compared with 6-, 10-, and 20-layer films, a 3-layer PtSe<sub<2</sub< nanofilm has better surface photoconductivity in the terahertz band and has a higher plasma frequency <i<ω<sub<p</sub<</i< of 0.23 THz and a lower scattering time <i<τ<sub<s</sub<</i< of 70 fs by Drude–Smith fitting. By the terahertz time-domain spectroscopy system, the broadband amplitude modulation of a 3-layer PtSe<sub<2</sub< film in the range of 0.1–1.6 THz was obtained, and the modulation depth reached 50.9% at a pump density of 2.5 W/cm<sup<2</sup<. This work proves that PtSe<sub<2</sub< nanofilm devices are suitable for terahertz modulators. |
abstract_unstemmed |
In this paper, we propose an optically controlling broadband terahertz modulator of a layer-dependent PtSe<sub<2</sub< nanofilm based on a high-resistance silicon substrate. Through optical pump and terahertz probe system, the results show that compared with 6-, 10-, and 20-layer films, a 3-layer PtSe<sub<2</sub< nanofilm has better surface photoconductivity in the terahertz band and has a higher plasma frequency <i<ω<sub<p</sub<</i< of 0.23 THz and a lower scattering time <i<τ<sub<s</sub<</i< of 70 fs by Drude–Smith fitting. By the terahertz time-domain spectroscopy system, the broadband amplitude modulation of a 3-layer PtSe<sub<2</sub< film in the range of 0.1–1.6 THz was obtained, and the modulation depth reached 50.9% at a pump density of 2.5 W/cm<sup<2</sup<. This work proves that PtSe<sub<2</sub< nanofilm devices are suitable for terahertz modulators. |
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Through optical pump and terahertz probe system, the results show that compared with 6-, 10-, and 20-layer films, a 3-layer PtSe<sub<2</sub< nanofilm has better surface photoconductivity in the terahertz band and has a higher plasma frequency <i<ω<sub<p</sub<</i< of 0.23 THz and a lower scattering time <i<τ<sub<s</sub<</i< of 70 fs by Drude–Smith fitting. By the terahertz time-domain spectroscopy system, the broadband amplitude modulation of a 3-layer PtSe<sub<2</sub< film in the range of 0.1–1.6 THz was obtained, and the modulation depth reached 50.9% at a pump density of 2.5 W/cm<sup<2</sup<. 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