Thermal properties of THz quantum cascade lasers based on different optical waveguide configurations
Thermal properties of THz quantum cascade lasers based on different optical waveguide configurations
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DOI：
10.1063/1.2220546
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发表时间：
2006-07-10
影响因子：
4
通讯作者：
Sirtori, Carlo
中科院分区：
文献类型：
--
作者：
Vitiello, Miriam S.;Scamarcio, Gaetano;Sirtori, Carlo
我们比较了基于Au/Au或In/Au晶圆键合的金属-金属光波导制备的太赫兹量子级联激光器（qcl）的热性能。这一信息是通过分析在连续波（cw）中工作的器件上测量的微探针波段到波段的光致发光光谱得到的。实验归一化热阻（R-L*）表明，使用Au/Au晶片键合优化了散热。与基于表面等离子体的太赫兹量子激光器的比较表明，使用金属-金属晶圆键合可以在越来越高的温度下进行连续波操作。(c) 2006年美国物理研究所。
We compare the thermal properties of THz quantum cascade lasers (QCLs) fabricated with metal-metal optical waveguides based on Au/Au or In/Au wafer bonding. This information was obtained from the analysis of microprobe band-to-band photoluminescence spectra measured on devices operating in continuous wave (cw). The experimental normalized thermal resistances (R-L*), show that the use of Au/Au wafer bonding optimizes the heat dissipation. Comparison with surface-plasmon based THz QCLs, demonstrates that the use of metal-metal wafer bonding can allow cw operation at progressively higher temperatures. (c) 2006 American Institute of Physics.