Open AccessDispersive mirror characterization and application for mid-infrared post-compression
Author(s) -
Roland Flender,
Máté Kurucz,
Tímea Grósz,
Ádám Börzsönyi,
Ugnius Gimževskis,
Arturas Samalius,
Dominik Hoff,
Bálint Kiss
Publication year - 2021
Publication title -
journal of optics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.918
H-Index - 95
eISSN - 2040-8986
pISSN - 2040-8978
DOI - 10.1088/2040-8986/abf88e
Subject(s) - optics , pulse compression , interferometry , infrared , materials science , laser , compression (physics) , group delay and phase delay , harmonic , pulse (music) , computer science , physics , telecommunications , acoustics , bandwidth (computing) , radar , detector , composite material
This paper presents a second harmonic assisted spectrally resolved interferometric technique that can overcome the limited spectral resolution of commercially available spectrometers in the mid-infrared. The discussed scheme was validated by measuring the group delay of several well-known and frequently used materials. Our main motivation was to characterize the spectral phase shift of newly designed and manufactured dispersive mirrors to be used for mid-infrared (MIR) post-compression. These mirrors were successfully implemented in the post-compression stage of our MIR laser system, where pulse duration was shortened below two optical cycles and the pulse peak power increased by 30.3% compared to the original output.