THz ultra-strong light-matter coupling up to 200K with continuously-graded parabolic quantum wells embedded in microcavities

P Goulain,C Deimert,M Jeannin, A Bousseksou,Wj Pasek

2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz)（2022）

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摘要

we demonstrate ultra-strong light- matter coupling up to 200K with continuously graded parabolic quantum wells inserted in metallic microcavities at THz frequencies. The harmonic quantization of the wavefunctions protects the intersubband (ISB) transition from Coulomb interactions that allows the measurement of an ISB polariton mode as low as 1.8 THz.

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关键词

metallic microcavities,THz frequencies,continuously-graded parabolic quantum wells,THz ultrastrong light-matter coupling,harmonic quantization,wavefunctions,intersubband transition,Coulomb interactions,ISB polariton mode,frequency 1.8 THz,AlxGa1-xAs

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