Realization of UV Plasmonic Nanolasers With Extremely Small Mode Volume

Bo Tsun Chou; Yu Hsun Chou; Chih Kai Chiang; Yen Mo Wu; Tzy Rong Lin; Sheng-Di Lin; Tien-chang Lu

doi:10.1109/JSTQE.2015.2448651

Realization of UV Plasmonic Nanolasers With Extremely Small Mode Volume

Bo Tsun Chou^*, Yu Hsun Chou, Chih Kai Chiang, Yen Mo Wu, Tzy Rong Lin, Sheng-Di Lin, Tien-chang Lu

^*此作品的通信作者

光電工程學系

研究成果: Article › 同行評審

6 引文斯高帕斯（Scopus）

摘要

It is difficult to operate plasmonic nanolasers on silver films in the ultraviolet regime owing to the bending-back effect of surface plasmon dispersion. In this paper, we report on plasmonic lasers comprised of a ZnO nanowire lying on a single-crystalline silver film with a SiO₂ spacer layer. The silver can strongly shrink the mode volume, thereby boosting the Purcell factor. Meanwhile, the SiO₂ spacer thickness is optimized to adjust the surface plasmon dispersion curve so that the lasing wavelength can be located at a large dispersion region, thereby achieving a large group index of 55, an ultra-small effective mode volume of 3.5 × 10^-3λ³, and low-threshold of 11 MW/cm².

原文	English
文章編號	7160801
期刊	IEEE Journal on Selected Topics in Quantum Electronics
卷	21
發行號	6
DOIs	https://doi.org/10.1109/JSTQE.2015.2448651
出版狀態	Published - 1 11月 2015

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10.1109/JSTQE.2015.2448651

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title = "Realization of UV Plasmonic Nanolasers With Extremely Small Mode Volume",

abstract = "It is difficult to operate plasmonic nanolasers on silver films in the ultraviolet regime owing to the bending-back effect of surface plasmon dispersion. In this paper, we report on plasmonic lasers comprised of a ZnO nanowire lying on a single-crystalline silver film with a SiO2 spacer layer. The silver can strongly shrink the mode volume, thereby boosting the Purcell factor. Meanwhile, the SiO2 spacer thickness is optimized to adjust the surface plasmon dispersion curve so that the lasing wavelength can be located at a large dispersion region, thereby achieving a large group index of 55, an ultra-small effective mode volume of 3.5 × 10-3λ3, and low-threshold of 11 MW/cm2.",

keywords = "nanowire, Plasmonic laser, silver, surface plasmon, ZnO",

author = "Chou, {Bo Tsun} and Chou, {Yu Hsun} and Chiang, {Chih Kai} and Wu, {Yen Mo} and Lin, {Tzy Rong} and Sheng-Di Lin and Tien-chang Lu",

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AU - Chou, Bo Tsun

AU - Chou, Yu Hsun

AU - Chiang, Chih Kai

AU - Wu, Yen Mo

AU - Lin, Tzy Rong

AU - Lin, Sheng-Di

AU - Lu, Tien-chang

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N2 - It is difficult to operate plasmonic nanolasers on silver films in the ultraviolet regime owing to the bending-back effect of surface plasmon dispersion. In this paper, we report on plasmonic lasers comprised of a ZnO nanowire lying on a single-crystalline silver film with a SiO2 spacer layer. The silver can strongly shrink the mode volume, thereby boosting the Purcell factor. Meanwhile, the SiO2 spacer thickness is optimized to adjust the surface plasmon dispersion curve so that the lasing wavelength can be located at a large dispersion region, thereby achieving a large group index of 55, an ultra-small effective mode volume of 3.5 × 10-3λ3, and low-threshold of 11 MW/cm2.

AB - It is difficult to operate plasmonic nanolasers on silver films in the ultraviolet regime owing to the bending-back effect of surface plasmon dispersion. In this paper, we report on plasmonic lasers comprised of a ZnO nanowire lying on a single-crystalline silver film with a SiO2 spacer layer. The silver can strongly shrink the mode volume, thereby boosting the Purcell factor. Meanwhile, the SiO2 spacer thickness is optimized to adjust the surface plasmon dispersion curve so that the lasing wavelength can be located at a large dispersion region, thereby achieving a large group index of 55, an ultra-small effective mode volume of 3.5 × 10-3λ3, and low-threshold of 11 MW/cm2.

KW - nanowire

KW - Plasmonic laser

KW - silver

KW - surface plasmon

KW - ZnO

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JO - IEEE Journal on Selected Topics in Quantum Electronics

JF - IEEE Journal on Selected Topics in Quantum Electronics

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Realization of UV Plasmonic Nanolasers With Extremely Small Mode Volume

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