Open AccessInfrared photoluminescence spectra measurements using boxcar integrator in the active baseline subtraction mode
Author(s) -
Andrei Luferau,
Д. Д. Фирсов,
О. С. Комков
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1400/6/066035
Subject(s) - duty cycle , photoluminescence , integrator , infrared , materials science , spectral line , subtraction , optoelectronics , infrared spectroscopy , analytical chemistry (journal) , optics , physics , chemistry , voltage , mathematics , arithmetic , chromatography , quantum mechanics , astronomy
A photoluminescence (PL) measurement method using boxcar integration in the active baseline subtraction mode has been implemented. It allows for infrared PL measurements with a low duty cycle of the pump pulse, thereby minimizing the uncontrolled heating of the structure under study. The implemented method was compared to phase-sensitive detection by signal-to-noise ratio of the resulting spectra, indicating its superior performance at low duty cycles. The decrease in uncontrolled heating of the structure under study was confirmed by observing a change in the ratio of temperature-sensitive PL peaks of a test InSb/InAs/InGaAs/InAlAs/GaAs nanoheterostructure.