2025/08/26 by Nathan G. Drouillard, T. J. Hammond · 1 voice
Biochemistry, Genetics and Molecular Biology · Physics and Astronomy · #Spectroscopy Techniques in Biomedical and Chemical Research #Advanced Fiber Laser Technologies #Laser-Matter Interactions and Applications
paper · pdf · doi:10.1177/00037028251375438
openalex publication_date 2025/08/26 · openalex created_date 2025/08/26 · openalex updated_date 2026/06/22
Femtosecond, broadband stimulated Raman spectroscopy is a popular approach to measuring molecular dynamics with excellent signal-to-noise and spectral resolution. We present a new method for broadband stimulated Raman spectroscopy that employs Kerr instability amplification to amplify the supercontinuum spectrum from sapphire and create a highly tunable Raman probe spectrum spanning from 530 to 1000 nm (–6000 to 2800 cm –1 ). Our method, called Kerr instability amplification for broadband-stimulated Raman spectroscopy (KAB-SRS) provides an alternative to optical parametric amplifiers by producing a broader and more tunable spectrum at a significantly reduced cost to OPA implementations. We demonstrate the effectiveness of KAB-SRS by measuring the stimulated Raman loss spectrum of 1-decanol.