首页> 外文会议>International Conference on Infrared, Millimeter, and Terahertz Waves;IRMMW-THz 2012 >Critical comparison of carrier lifetime at 1.55 #x00B5;m of ion-irradiated InGaAs, cold-implanted InGaAsP, and ErAs:GaAs
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Critical comparison of carrier lifetime at 1.55 #x00B5;m of ion-irradiated InGaAs, cold-implanted InGaAsP, and ErAs:GaAs

机译:离子辐照的InGaAs,冷注入的InGaAsP和ErAs:GaAs在1.55 µm载流子寿命的关键比较

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We compare the photocarrier lifetime measured in Br-irradiated InGaAs and cold Fe-implanted InGaAsP. We also demonstrate the possibility of a two-photon absorption (TPA) process in ErAs:GaAs. The lifetime and the TPA were measured with a fiber-based 1550 nm time-resolved differential transmission (?T) set-up. The InGaAs-based materials show a positive ?T with sub-picosecond lifetime, whereas ErAs:GaAs shows a negative ?T consistent with a two-photon absorption process.
机译:我们比较了在Br辐照的InGaAs和冷铁注入的InGaAsP中测得的光载流子寿命。我们还证明了ErAs:GaAs中双光子吸收(TPA)过程的可能性。使用基于光纤的1550 nm时间分辨差分传输(ΔT)装置测量寿命和TPA。基于InGaAs的材料显示出亚皮秒寿命的正ΔT,而ErAs:GaAs则显示出与双光子吸收过程一致的负ΔT。

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