Abstract

A new type of the pump–probe technique with temporally incoherent light is proposed for use in the subpicosecond and femtosecond time regions in the wide-wavelength range. This method permits measurement of the longitudinal relaxation time T1 with the time resolution determined by the characteristic time of the intensity correlation of the incident light independently of its pulse width. For a demonstration of this technique, absorption recovery time T1 = 180 psec of a dye solution was measured with Q-switched laser pulses of 150-nsec duration. Differences between this method and the corresponding one used to measure the transverse relaxation time T2 with incoherent light is discussed.

© 1986 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Measurement of ultrafast dephasing time of Cresyl Fast Violet in cellulose by photon echoes with incoherent light

Masahiro Fujiwara, Ryo Kuroda, and Hiroki Nakatsuka
J. Opt. Soc. Am. B 2(10) 1634-1639 (1985)

Time-delayed four-wave mixing using incoherent light for observation of ultrafast population relaxation

Norio Morita, Takashi Tokizaki, and Tatsuo Yajima
J. Opt. Soc. Am. B 4(8) 1269-1275 (1987)

Ultrafast relaxation times of metalloporphyrins by time-resolved degenerate four-wave mixing with incoherent light

D. Narayana Rao, S. Venugopal Rao, F. J. Aranda, D. V. G. L. N. Rao, M. Nakashima, and J. A. Akkara
J. Opt. Soc. Am. B 14(10) 2710-2715 (1997)

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 (3)

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 (7)

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