Broadband metasurface design for terahertz quantum‐cascade VECSEL
Broadband metasurface design for terahertz quantum‐cascade VECSEL
复制标题
太赫兹量子级联 VECSEL 的宽带超表面设计
DOI:
10.1049/el.2020.1963
复制
发表时间:
2020
影响因子:
1.1
通讯作者:
Williams, B.S.
中科院分区:
文献类型:
--
作者:
Curwen, C.A.;Reno, J.L.;Williams, B.S.
A broadband active metasurface is designed around quantum‐cascade (QC) gain material for use in a broadband tunable QC vertical external‐cavity surface‐emitting laser (VECSEL). The metasurface is based on a unit cell containing two resonant waveguide elements that couple with the periodicity of the metasurface to produce a multi‐resonant reflection spectrum. Simulated reflectance spectra exhibit full‐width half‐maximum bandwidths up to 50% of the centre frequency. The tested QC‐VECSEL demonstrates up to 15 mW of peak pulse power at 77 K and supports multimode lasing from 2.85 to 3.9 THz (>30% fractional bandwidth around 3.37 THz). The frequency coverage is limited by how short the cavity can be made, rather than the metasurface bandwidth. Consistent multimoding results from non‐uniform distribution of spectral energy across the surface.
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影响因子:
4
作者:
D. Bachmann;M. Rösch;G. Scalari;M. Beck;J. Faist;K. Unterrainer;J. Darmo
通讯作者:
D. Bachmann;M. Rösch;G. Scalari;M. Beck;J. Faist;K. Unterrainer;J. Darmo
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
D. Burghoff;Yang Yang;J. Reno;Q. Hu
通讯作者:
Q. Hu
DOI:
--
发表时间:
2019
期刊:
International Conference on Infrared, Millimeter, and Terahertz Waves
影响因子:
--
作者:
J. Pérez;J. Madéo;Y. Todorov;Lianhe H. Li;A. Davies;E. Linfield;C. Sirtori;K. Dani
通讯作者:
K. Dani
影响因子:
3.8
作者:
Nathan Henry;D. Burghoff;Q. Hu;J. Khurgin
通讯作者:
J. Khurgin