Ashwin J. X. Choorakuttil

ORCID: 0009-0007-2465-4825
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About
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Research Areas
  • Spectroscopy Techniques in Biomedical and Chemical Research
  • Integrated Circuits and Semiconductor Failure Analysis
  • Advanced Fluorescence Microscopy Techniques
  • Gold and Silver Nanoparticles Synthesis and Applications
  • Thermography and Photoacoustic Techniques

University of Konstanz
2020-2023

Double modulation of the excitation light gives quantitative insight into signal contributions in pre-resonance SRS and SREF spectroscopy.

10.1039/d0cp03221b article EN Physical Chemistry Chemical Physics 2020-01-01

We report an experimental scheme for stimulated Raman scattering (SRS) microscopy with excitation in the visible spectral region. This allows electronically preresonant (epr) SRS of a broad range chromophores sensitivities as low 1 μM. Our experiment is based on two synchronously near-infrared pumped optical parametric oscillators (OPO). One outputs modulated at fourth repetition rate novel broadband electro-optical modulator. Using combination focusing and tuning OPO, we show recording...

10.1063/5.0171725 article EN cc-by Applied Physics Letters 2023-10-16
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