Abstract

The first known quantitative measurements of an ultrafast relaxation process in yttrium iron garnet (YIG) are presented. Decay out of the initially excited crystal field state at 16 000 cm−1 was observed to occur in 100 ± 40 fsec. Additional measurements performed on YGG:Fe (Y3Ga4.8Fe0.2O12) at 298 and 2.6 K implicate the involvement of charge-transfer states in this ultrafast relaxation. Lifetimes of less than 2 fsec are indicated for pure charge-transfer states. No dynamic manifestation of the strong antiferromagnetic exchange coupling between iron ions in YIG is evident.

© 1985 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Relaxation dynamics of photoexcitations in polydiacetylenes and polythiophene

Takayoshi Kobayashi, Masayuki Yoshizawa, Uwe Stamm, Makoto Taiji, and Masamitsu Hasegawa
J. Opt. Soc. Am. B 7(8) 1558-1578 (1990)

Ambient and high pressure spectroscopy of Ce3+ doped yttrium gallium garnet

A. Wittlin, H. Przybylińska, M. Berkowski, A. Kamińska, P. Nowakowski, P. Sybilski, Chong-Geng Ma, M.G. Brik, and A. Suchocki
Opt. Mater. Express 5(8) 1868-1880 (2015)

Chemical pressure effects on the spectroscopic properties of Nd3+-doped gallium nano-garnets

V. Monteseguro, M. Rathaiah, K. Linganna, A.D. Lozano-Gorrín, M.A. Hernández-Rodríguez, I.R. Martín, P. Babu, U.R. Rodríguez-Mendoza, F.J. Manjón, A. Muñoz, C.K. Jayasankar, V. Venkatramu, and V. Lavín
Opt. Mater. Express 5(8) 1661-1673 (2015)

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 (5)

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