Electrically Tunable 2-D Organic Photonic Crystal Lasers
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 1.8nm are observed with laser thresholds below 1 mJ/cm2 in 2-D columnar structures compared to 9nm 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 effectric field.
Rachel Jakubiak Timothy J. Bunning Richard A. Vaia Pamela Lloyd Vincent P. Tondiglia Lalgudi V. Natarajan Richard L. Sutherland
Materials & Manufacturing Directorate, Air Force Research Laboratory Wright-Patterson AFB, OH 45433, UES, Inc., Beavercreek, OH 45432, USA SAIC, Beavercreek, OH 45432, USA
国际会议
Progress in Electromagnetics Research Symposium 2007(2007年电磁学研究新进展学术研讨会)(PIERS 2007)
北京
英文
1761-1764
2007-03-26（万方平台首次上网日期，不代表论文的发表时间）