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Proceedings Paper

Advances in polymer optical devices and waveguide fabrication techniques
Author(s): Warren N. Herman; Wei-Yen Chen; Younggu Kim; Glenn Hutchinson; Wei Lou Cao; Yongzhang Leng; Victor Yun; Hongye Liang; Yi-Hsing Peng; Min Du; Lisa Lucas; Ping-Tong Ho; Julius Goldhar; Chi H. Lee
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Paper Abstract

We report progress in the development of polymer waveguides and devices for photonic applications in three areas: non-photolithographic techniques for polymer waveguide fabrication, bistability in laterally-coupled polymer microring resonators, and ultrafast photoconductive switches fabricated from semiconducting polymers. The non-photolithographic techniques for waveguide fabrication under development include laser milling with an excimer laser and programmable automatic dispensing of multimode polymer waveguides using an Essemtech automatic dispenser. Asymmetric diffraction gratings fabricated using phase masks and the interference of two excimer laser beams have exhibited concentration of optical power into the 1st diffraction order. Polymer micro-ring resonators laterally coupled to a bus line were fabricated by lithography from benzocyclobutene with radii as small as 10 μm and free spectral ranges on the order of 20 nm. These devices exhibit bistability in the frequency domain which can arise from thermal or nonlinear optical changes in refractive index and that may have application for all-optical switching. Metal-polymer-metal switches fabricated with interdigitated electrodes in an inverted structure exhibited fast transient photoconductive pulsewidths under 20 ps in response to femtosecond pump laser pulses, but the measurement was bandwidth limited by the oscilloscope. Here we report pump-probe measurements that indicate carrier lifetimes on the order of 2 ps.

Paper Details

Date Published: 15 October 2004
PDF: 11 pages
Proc. SPIE 5517, Linear and Nonlinear Optics of Organic Materials IV, (15 October 2004); doi: 10.1117/12.560029
Show Author Affiliations
Warren N. Herman, Lab. for Physical Sciences (United States)
Wei-Yen Chen, Univ. of Maryland/College Park (United States)
Younggu Kim, Univ. of Maryland/College Park (United States)
Glenn Hutchinson, Univ. of Maryland/College Park (United States)
Wei Lou Cao, Univ. of Maryland/College Park (United States)
Yongzhang Leng, Lab. for Physical Sciences (United States)
Victor Yun, Lab. for Physical Sciences (United States)
Hongye Liang, Univ. of Maryland/College Park (United States)
Yi-Hsing Peng, Univ. of Maryland/College Park (United States)
Min Du, Lab. for Physical Sciences (United States)
Lisa Lucas, Lab. for Physical Sciences (United States)
Ping-Tong Ho, Univ. of Maryland/College Park (United States)
Julius Goldhar, Univ. of Maryland/College Park (United States)
Chi H. Lee, Univ. of Maryland/College Park (United States)


Published in SPIE Proceedings Vol. 5517:
Linear and Nonlinear Optics of Organic Materials IV
Robert A. Norwood; Manfred Eich; Mark G. Kuzyk, Editor(s)

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