Unified Stokes–Mueller polarimetry for multi-photon processes at varying wavelengths

Jinxian Wu, Xiang Ma, Jiaming Liu, Chunquan Lai, Yanqiu Li*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Existing polarimetry, mainly focusing on harmonic generations, overlooks the differences in retardance (DRs) caused by illuminations with different wavelengths in nonlinear processes, consequently falling short in accuracy beyond frequency doubling. In this Letter, with DRs considered, we propose a universal nonlinear Stokes–Mueller (NSM) polarimetry design involving illuminations with different wavelengths. Then, we optimize the NSM measurement model, applied to sum-frequency generation (SFG) and difference frequency generation. To demonstrate the necessity of consideration of DRs, the processes of polarization measurement for SFG are simulated, where the condition number decreases by 51.2%, and the root mean square error of the nonlinear Mueller matrix decreases by 20.48%.

Original languageEnglish
Pages (from-to)3464-3467
Number of pages4
JournalOptics Letters
Volume49
Issue number12
DOIs
Publication statusPublished - 15 Jun 2024
Externally publishedYes

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