Observation of 4-ms response-time in a photorefractive polymer

Jon A. Herlocker, Kyle B. Ferrio, Eric Hendrickx, B. D. Guenther, Stephane Mery, Bernard Kippelen, Nasser Peyghambarian

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


Efficient photorefractive polymers hold great potential for optical data processing and storage and so have been a topic of intense investigations in recent years. Materials with nearly 100% diffraction efficiencies have been developed, but these have been generally characterized by much slower responses than their less efficient inorganic counterparts. In this report, we describe a 4-ms initial rise-time using a visible-transparent chromophore in a PVK-based polymer of Tg = 39°C for 48-V/μm bias projected along the grating vector and 250-m W/cm2 writing beams. This fast component consistently accounts for 90% of the steady-state response and is analyzed as a function of bias field. We also present transient ellipsometry measurements of an orientational response significantly faster than the grating development, suggesting that chromophore alignment speed does not limit transient grating formation. We describe the role of such underlying property measurements in understanding photorefractive transient behavior, and prospects for further improvements.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers
Number of pages7
ISBN (Print)0819430935
StatePublished - 1999
EventProceedings of the 1999 Organic Photonic Materials and Devices - San Jose, CA, USA
Duration: Jan 25 1999Jan 27 1999

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherProceedings of the 1999 Organic Photonic Materials and Devices
CitySan Jose, CA, USA

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


Dive into the research topics of 'Observation of 4-ms response-time in a photorefractive polymer'. Together they form a unique fingerprint.

Cite this