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Application of step-scan FTIR to the research of quantum cascade lasers |
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| Authors: | Junqi Liu Xiuzhen Lu Yu Guo Xiuqi Huang Xiaoling Che Wen Lei Fengqi Liu |
| Abstract: | The principle of step-scan Fourier transform infrared (FTIR) spectroscopy is introduced. Double modulation step-scan FTIR technique is used to obtain the quantum cascade laser's stacked emission spectra in the time domain. Optical property and thermal accumulation of devices due to large drive current are analyzed. |
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