Nonlinear frequency conversion using common optical coatings and applications

Joshua H. Magnus; Lam T. Nguyen; Khanh Q. Kieu

doi:10.1364/OE.563030

Nonlinear frequency conversion using common optical coatings and applications

Joshua H. Magnus
, Lam T. Nguyen
, Khanh Q. Kieu

Optical Sciences

Research output: Contribution to journal › Article › peer-review

Abstract

We investigate nonlinear signal generation from a variety of optical coatings on common filters and mirrors. The prevalent signal is third harmonic generation (THG). The THG conversion efficiency of some widely available optical coatings was surprisingly high, >10⁻⁴ with modest femtosecond laser excitation pulse energies of ∼6 nJ. In addition, we demonstrate third order interferometric autocorrelation, fifth harmonic generation, and non-collinear sum frequency generation using thin film coatings of off-the-shelf bandpass filters.

Original language	English (US)
Pages (from-to)	25970-25979
Number of pages	10
Journal	Optics Express
Volume	33
Issue number	12
DOIs	https://doi.org/10.1364/OE.563030
State	Published - Jun 16 2025

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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abstract = "We investigate nonlinear signal generation from a variety of optical coatings on common filters and mirrors. The prevalent signal is third harmonic generation (THG). The THG conversion efficiency of some widely available optical coatings was surprisingly high, >10−4 with modest femtosecond laser excitation pulse energies of ∼6 nJ. In addition, we demonstrate third order interferometric autocorrelation, fifth harmonic generation, and non-collinear sum frequency generation using thin film coatings of off-the-shelf bandpass filters.",

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Nonlinear frequency conversion using common optical coatings and applications

Abstract

ASJC Scopus subject areas

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