Xilin Peng

3 Questions 3 Answers 0 Followers

Questions related from Xilin Peng

Excitation laser wavelength/power effect on PL?

Looking for information/input on AlGaAs laser PL: 1. for commercial AlxGa1-xAs EEL QW lasers (X=0.1~0.4), how does the laser excitation wavelength (~405, ~450, 488, 514, 520, 532, 660 nm) and...

22 August 2021 4,776 0 View

What is the best SiO2 Wet etch chemistry to liftoff P-metal contact on GaAlAs EEL?

I would like to remove P-type metal contact on GaAs/GaAlAs edge emitting laser (EEL) to do Photo-luminescence study next.Wet etch is preferred. Since there is a SiO2 isolation layer underneath...

08 May 2019 2,169 2 View

excitation laser wavelength and minimum power for p-GaAs PL image for dark line defects?

I have a very small (~200um) GaAs p-n junction device (with AlGaAs QW) and would like to collect PL images from, using an optical microscope system (300x total effective magnification is...

21 April 2019 2,067 3 View