Title

Enhanced Gain Dynamics In Photorefractive Polymers

Keywords

Photorefractives; Polymers; Two-beam coupling

Abstract

The complexity of photorefractive polymers arises from multiple contributions to the photo-induced index grating. Analysis of the time dynamics of the two-beam coupling signal is used to extract information about the charge species responsible for the grating formation. It has been shown in a commonly used photorefractive polymer at moderate applied electric fields, the primary charge carriers (holes) establish an initial grating which, however, are followed by a subsequent competing grating (electrons) that decreases the two-beam coupling efficiency. We show by upon using higher applied bias fields, gain enhancement can be achieved by eliminating the electron grating contribution and returning to hole gratings only. © 2013 SPIE.

Publication Date

1-1-2013

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

8847

Number of Pages

-

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.2023404

Socpus ID

84888856735 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84888856735

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