Enhanced Second Harmonic Generation from a Dielectric Encapsulated Multilayer Gallium Selenide

Rabindra Biswas,Suman Chatterjee,Jayanta Deka,M Advaitha,Kausik Majumdar,Varun Raghunathan

Enhanced Second Harmonic Generation from a Dielectric Encapsulated Multilayer Gallium Selenide

2021

Rabindra Biswas
Suman Chatterjee
Jayanta Deka
M Advaitha
Kausik Majumdar
Varun Raghunathan

We experimentally demonstrate a simple approach to enhance second-harmonic generation (SHG) from multilayer Gallium Selenide by encapsulating with an optimized thickness of low-index dielectric layers. 46-times enhancement is observed showing good agreement with nonlinear wave propagation simulation.

Keywords:

nonlinear wave propagation
Gallium selenide
Wave propagation
nonlinear microscopy
Materials science
Second-harmonic generation
Optoelectronics
Dielectric

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