Abstract

A method for obtaining broadband multichannel IR spectra with subpicosecond time resolution is described. Spectrally broad IR pulses, produced by difference-frequency mixing of two visible pulses in LiIO3, are split to make signal and reference pulses. After sample absorption, the IR pulses are upconverted by a second LiIO3 crystal to produce visible pulses that are dispersed on a CCD detector to yield transient spectra with 100-cm−1 bandwidth and 4-cm−1 resolution. With this dual-beam technique, spectra with sensitivities of 0.001 ΔOD are obtained.

© 1994 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Broadband femtosecond transient infrared spectroscopy using a 256 × 256 element indium antimonide focal-plane detector

S. M. Arrivo, V. D. Kleiman, T. P. Dougherty, and E. J. Heilweil
Opt. Lett. 22(19) 1488-1490 (1997)

Ultrafast mid-infrared spectroscopy by chirped pulse upconversion in 1800-1000cm−1 region

Jingyi Zhu, Tilo Mathes, Andreas D. Stahl, John T.M. Kennis, and Marie Louise Groot
Opt. Express 20(10) 10562-10571 (2012)

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

Equations (2)

You do not have subscription access to this journal. Equations 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