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Proceedings Paper

Stimulated emission from pyrromethene 597 in holographic polymer dispersed liquid crystal structures
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Paper Abstract

Holographic polymerization of liquid crystal containing photopolymerizable resins enables one-step, rapid formation of multi-phase structures that exhibit partial photonic band gaps. These holographic polymer dispersed liquid crystals (H-PDLCs) provide a versatile platform for diffractive optical elements because the structures are not limited by multi-phase equilibrium but are controlled by the interference of multiple lasers at discrete angles. Incorporation of laser dyes into H-PDLCs form 1-D and 2-D optically pumped distributed feedback lasers. Linewidths as narrow as 1.8 nm are observed with laser thresholds below 1 mJ/cm2 in 2-D columnar structures compared to 9 nm and 25 mJ/cm2 exhibited by 1-D H-PDLC Bragg stack lasers. In the 2-D lattices the energy of the laser action can be tuned within the gain spectrum of the lasing medium by an applied electric field.

Paper Details

Date Published: 4 April 2005
PDF: 6 pages
Proc. SPIE 5724, Organic Photonic Materials and Devices VII, (4 April 2005); doi: 10.1117/12.591048
Show Author Affiliations
Rachel Jakubiak, Air Force Research Lab. (United States)
Vincent P. Tondiglia, SAIC, Inc. (United States)
Lalgudi V. Natarajan, SAIC, Inc. (United States)
Richard L. Sutherland, SAIC, Inc. (United States)
Pamela Lloyd, UES, Inc. (United States)
Timothy Bunning, Air Force Research Lab. (United States)
Richard A. Vaia, Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 5724:
Organic Photonic Materials and Devices VII
James G. Grote; Toshikuni Kaino; Francois Kajzar, Editor(s)

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