Time-integrating gate method for time-resolving photoluminescence

Author

Dogariu, A. ; Heeger, A.J.

Author_Institution

Inst. for Polymers & Org. Solids, California Univ., Santa Barbara, CA, USA

fYear

1998

fDate

3-8 May 1998

Firstpage

9

Abstract

Summary form only given. Studying the photoluminescence (PL) decay is important when characterizing materials as light-emitting media. The method we propose in this paper is a time-integrating gate (TIG). This method uses a step function instead of a delta function as the time-delayed gate. In the particular case of an exponential decay (which seems to be the case for the conjugated polymers), integrating the light emitted from a certain time on gives the same time dependence (exponential) as the PL decay.

Keywords

conducting polymers; high-speed optical techniques; nonlinear optics; optical pumping; radiative lifetimes; time resolved spectroscopy; conjugated polymers; exponential decay; fast nonlinear effect; long-lived excited state absorption; photoluminescence decay; step function; time-delayed gate; time-integrating gate method; time-resolving photoluminescence; Absorption; Laser excitation; Nonlinear optics; Optical mixing; Optical pumping; Optical refraction; Optical variables control; Photoluminescence; Polymers; Ultrafast optics;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 1998. CLEO 98. Technical Digest. Summaries of papers presented at the Conference on

Conference_Location

San Francisco, CA, USA

Print_ISBN

1-55752-339-0

Type

conf

DOI

10.1109/CLEO.1998.675790

Filename

675790