Abstract

We report on the systematic open-aperture Z-scan characterization of the two-photon absorption properties in one of the most efficient solid-state Raman frequency shifters, the crystal potassium gadolinium tungstate KGdWO42. The two-photon absorption coefficient was determined in the 370–600-nm wavelength range, with the highest value found to be 1.9 cm/GW at 370 nm. Nonlinear losses are crucial in determining the conversion efficiency of the stimulated Raman scattering process when it is excited with ultrashort laser pulses with photon energy exceeding half of the bandgap. In addition, the results were analyzed within the context of a simple two-parabolic-band theoretical model to yield an effective bandgap energy value for the crystal.

© 2004 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Efficient Raman shifting of high-energy picosecond pulses into the eye-safe 1.5-µ spectral region by use of a KGd(WO4)2 crystal

Arkady Major, J. Stewart Aitchison, Peter W. E. Smith, Nigel Langford, and Allister I. Ferguson
Opt. Lett. 30(4) 421-423 (2005)

Observation of Raman conversion for 70-fs pulses in KGd(WO4)2 crystal in the regime of impulsive stimulated Raman scattering

A. S. Grabtchikov, R. V. Chulkov, V. A. Orlovich, M. Schmitt, R. Maksimenko, and W. Kiefer
Opt. Lett. 28(11) 926-928 (2003)

Multifrequency parametric infrared Raman generation in KGd(WO4)2 crystal with biharmonic ultrashort-pulse pumping

L. L. Losev, J. Song, J. F. Xia, D. Strickland, and V. V. Brukhanov
Opt. Lett. 27(23) 2100-2102 (2002)

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 (2)

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 (1)

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