An Efficient Photon Conversion Efficiency Ammonia Terahertz Cavity Laser

An efficient ammonia terahertz （THz） cavity laser is reported experimentally. Unlike the past design schemes such as hole couplers and freestanding mesh couplers, in our systems the input and output couplers are fabricated by depositing nickel capacitive metallic meshes on ZnSe and high-resistivity...

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Published in:Chinese physics letters 2009-12, Vol.26 (12), p.106-109, Article 124201
Main Author: 祁春超 左都罗 卢彦兆 唐建 杨晨光 柯林达 程祖海
Format: Article
Language:English
Subjects:
Ammonia
CO2激光
Conversion
Couplers
Holes
Lasers
Nickel
Oscillators
Photons
太赫兹辐射
激光器
转换效率
输出能量
金属网格
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cited_by cdi_FETCH-LOGICAL-c395t-4edbfe7db3af378bed6ed841e92fc214277bd9eed674c9b59be1a22abd086edf3
cites cdi_FETCH-LOGICAL-c395t-4edbfe7db3af378bed6ed841e92fc214277bd9eed674c9b59be1a22abd086edf3
container_end_page 109
container_issue 12
container_start_page 106
container_title Chinese physics letters
container_volume 26
creator 祁春超 左都罗 卢彦兆 唐建 杨晨光 柯林达 程祖海
description An efficient ammonia terahertz （THz） cavity laser is reported experimentally. Unlike the past design schemes such as hole couplers and freestanding mesh couplers, in our systems the input and output couplers are fabricated by depositing nickel capacitive metallic meshes on ZnSe and high-resistivity silicon substrates. Thus the couplers not only can be constructed as an F-P oscillator but also can be used as sealed windows that are easier to perform the adjustment of alignment with. To enhanceTHz laser output energy and photon conversion efficiency, the dominant factors such as pump intensity and gas pressure are investigated experimentally. Finally, a 1.35mJ terahertz radiation of ammonia laser with 90μm wavelength （3.33THz） operating at 1.09kPa pumped by a 402mJ TEA CO2 laser with 9R （16） line is generated, and photon conversion efficiencies of 6.5% are achieved.
doi_str_mv 10.1088/0256-307X/26/12/124201
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source Institute of Physics
subjects Ammonia
CO2激光
Conversion
Couplers
Holes
Lasers
Nickel
Oscillators
Photons
太赫兹辐射
激光器
转换效率
输出能量
金属网格
title An Efficient Photon Conversion Efficiency Ammonia Terahertz Cavity Laser
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