Hostname: page-component-76fb5796d-5g6vh Total loading time: 0 Render date: 2024-04-26T14:07:50.940Z Has data issue: false hasContentIssue false
  • English
  • Français

Broadband Excited State Dynamics of Common Reverse Saturable Absorbing Dye Media.

Published online by Cambridge University Press:  15 February 2011

Kenneth J. McEwan  and
Richard C. Hollins
Kenneth J. McEwan
Affiliation:
Defence Research Agency, Malvern, United Kingdom.
Richard C. Hollins
Affiliation:
Defence Research Agency, Malvern, United Kingdom.
Get access

Abstract

In this paper we describe a technique by which the broadband excited state absorption/emission and dynamics can be measured for materials with either linear or two photon absorption. The technique is applied to two different dyes in solution and to a cyano-biphenyl organic liquid. The ratio of σex/σgr for HITCI in methanol is greater than 1 from 400 to 570nm and at 532nn is determined to be 25; the excited state lifetime is 800ps. For CAP in methanol σex/σgr is greater than 1 from 400–650nm and is 14 at 532nm. Dimer absorption and emission are found to contribute to the excited state response in this material. In the organic liquid broadband (400–570nm) excited state absorption is measured following two photon excitation at 588nm.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 374: Symposia ZB – Materials for Optical Limiting , 1994 , 375
Copyright
Copyright © Materials Research Society 1995

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

[1]. Wei, T.H., Hagan, D.J., Sence, M.J., Stryland, E.W. Van, Perry, J.W. and Coulter, D.R., Appl. Phys., B54, 46, (1992).Google Scholar
[2]. Shirk, J.S., Pong, R.G.S., Bartoli, F.J. and Snow, A.W., Appl. Phys. Lett., 63, 1880, (1993).Google Scholar
[3]. Bentivegna, F., Canva, M., Georges, P., Brun, A., et al, Appl. Phys. Lett., 62, 1721, (1993).Google Scholar
[4]. Perry, J., Mansour, K., Marder, S., Perry, K., et al, Optics Lett., 19, 625, (1994).Google Scholar
[5]. McEwan, K.J. and Hollins, R.C., SPIE Vol 2229, 122, (1994).Google Scholar
[6]. Alfano, R.R., Editor, The Supercontinuum Laser Source, (Springer-Verlag, New York, 1989).Google Scholar
[7]. Hughes, S., Spruce, G., Wherrett, B.S., Welford, K.R. and Lloyd, A.D., Optics Comm., 100, 113, (1993).Google Scholar
[8]. Ivri, J., Burshtein, Z., and Miron, E., App. Optics, 30, 2484, 1991.Google Scholar
[9]. McEwan, K.J. and Hollins, R.C., Int. Jour. Nonlin. Opt. Phys., 1, (1995), to be published.Google Scholar
[10]. McEwan, K.J. and Hollins, R.C., Proc. MRS (Boston) Sym. Zb, (1994), to be published.Google Scholar