Abstract

The sensitivity of high-repetition-rate hybrid femtosecond/picosecond (fs/ps) rotational coherent anti-Stokes Raman scattering (RCARS) is strongly influenced by the energy available for the ps probe pulse. In this work, a high-energy ps probe pulse that is time-synchronized with the fs pump/Stokes pulse is achieved by using a diode-pumped Nd:YAG amplifier seeded at 1064.4 nm by the output of a fs optical parametric amplifier. Nearly transform-limited, 10 ps pulses with up to 800 µJ/pulse and a bandwidth of ${1.9}\;{{\rm cm}^{ - 1}}$ were generated at the second harmonic 532.2 nm and used for kilohertz-rate fs/ps RCARS thermometry up to 2400 K with accuracies of 1–2%. We furthermore demonstrate the amplification of variable pulsewidths for flexible single-mode (chirp-free) RCARS signal generation.

© 2020 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Ultrafast background-free ro-vibrational fs/ps-CARS thermometry using an Yb:YAG crystal-fiber amplified probe

Rosa Santagata, Michael Scherman, Mathieu Toubeix, Malik Nafa, Brigitte Tretout, and Alexandre Bresson
Opt. Express 27(23) 32924-32937 (2019)

Rovibrational hybrid fs/ps CARS using a volume Bragg grating for N2 thermometry

M. Scherman, M. Nafa, T. Schmid, A. Godard, A. Bresson, B. Attal-Tretout, and P. Joubert
Opt. Lett. 41(3) 488-491 (2016)

Probe-pulse optimization for nonresonant suppression in hybrid fs/ps coherent anti-Stokes Raman scattering at high temperature

Joseph D. Miller, Mikhail N. Slipchenko, and Terrence R. Meyer
Opt. Express 19(14) 13326-13333 (2011)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription