Open AccessГенерация квантово-каскадного лазера с тонкой верхней обкладкой
Author(s) -
А.В. Бабичев,
А.Г. Гладышев,
Д.В. Денисов,
Л.Я. Карачинский,
И.И. Новиков,
Laurent Boulley,
Adel Bousseksou,
Н.А. Пихтин,
А.Ю. Егоров
Publication year - 2019
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/os.2019.08.48041.82-19
Subject(s) - cladding (metalworking) , indium phosphide , optoelectronics , materials science , heterojunction , molecular beam epitaxy , substrate (aquarium) , wavelength , indium , laser , cascade , lasing threshold , epitaxy , layer (electronics) , optics , gallium arsenide , chemistry , nanotechnology , composite material , oceanography , physics , chromatography , geology
Experimental results on the manufacturing and study of the properties of 7-8 μm wavelength range injection quantum-cascade lasers (QCLs) with a waveguide with a thin top cladding layer based on indium phosphide are presented. The heterostructure is formed by molecular beam epitaxy on an InP substrate, with a In0.53Ga0.47As/Al0.48In0.52As active region. Lasing at a wavelength of 7.8 μm at a temperature of 300 K with a threshold current density of ~ 6 kA / cm2 is obtained. Characteristic temperature T0 and T1 values for the QCLs are about 150 K and 450 K, respectively. Obtained results confirm the promising design of the QCLs with a waveguide with a thin top cladding layer for detecting liquids and microfluidic devices development.