Beam Pattern Investigation of Terahertz Quantum Cascade Lasers

摘要：

Far-field beam pattern measurement results of in-house fabricated 1mm long THz QCLs with ridge widths of 30μm and 100μm are presented. Both devices show diffractive-like beam patterns in the elevation direction (perpendicular to semiconductor heterojunction plane). In the in-plane direction (parallel to semiconductor heterojunction plane), the device with a wider ridge width (100 μm) shows a quasi-Gaussian-like beam profile. A radio-frequency (RF) design simulator (HFSS) is deployed to simulate far-field beam pattern of the QCL devices. The simulation results are in good agreement with the experimental results.

作者: S.Fathololoumi D.Ban H.Luo P.Grant S.R.Laframboise Z.Wasilewski M.Buchanan H.C.Liu

作者单位: Institute for Microstructure Sciences,National Research Council,Ottawa,Canada;Department of Electric Department of Electrical and Computer Engineering,University of Waterloo,Waterloo,Canada Institute for Microstructure Sciences,National Research Council,Ottawa,Canada

会议类型: 国际会议

会议名称: Progress in Electromagnetics Research Symposium 2008(2008年电磁学研究新进展学术研讨会)(PIERS 2008)

会议地点: 杭州

会议语种:英文

页码: 1-4

在线出版日期: 2008-03-24（万方平台首次上网日期，不代表论文的发表时间）