Femtosecond to nanosecond characterization of optical limiting mechanisms in power limiting liquids and solids

A. Malko, S. Xu, H. L. Wang, R. Kohlman, L. Smilowitz, Victor I Klimov, D. W. McBranch, J. L. Nogues, W. Moreshead, D. Hagan, S. Yang, E. Van Stryland

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

We present our recent advances toward the development of high-performance solid-state optical limiting devices using reverse saturable absorption (RSA) dyes doped into optical host materials. Femtosecond transient absorption spectroscopy was employed to determine both the spectral regions of strong RSA, and the singlet-triplet excited-state dynamics. The optical limiting in the visible spectrum in both metallo-phthalocyanines and metallo-porphyrins is due to a combination of singlet and triplet RSA. Optical limiting performance was studied for RSA dyes in dual tandem limiters (both in solution and solid-state). Our best results in the solid-state yielded an attenuation of 400×, and a damage threshold of up to several mJ at f/5 focusing. The optical limiting at f/5 is further enhanced, particularly in the solid-state, by self-defocusing thermal nonlinearities.

Original languageEnglish
Title of host publicationMaterials Research Society Symposium - Proceedings
PublisherMaterials Research Society
Pages437-445
Number of pages9
Volume597
Publication statusPublished - 2000
EventThin Films for Optical Waveguide Devices and Materials for Optical Limiting - Boston, MA, USA
Duration: Nov 30 1999Dec 3 1999

Other

OtherThin Films for Optical Waveguide Devices and Materials for Optical Limiting
CityBoston, MA, USA
Period11/30/9912/3/99

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Malko, A., Xu, S., Wang, H. L., Kohlman, R., Smilowitz, L., Klimov, V. I., McBranch, D. W., Nogues, J. L., Moreshead, W., Hagan, D., Yang, S., & Van Stryland, E. (2000). Femtosecond to nanosecond characterization of optical limiting mechanisms in power limiting liquids and solids. In Materials Research Society Symposium - Proceedings (Vol. 597, pp. 437-445). Materials Research Society.