TY - GEN
T1 - Two-photon absorption induced photochromic reactions in spirobenzopyran-doped PMMA waveguides
AU - Cokgor, Ilkan
AU - Piyaket, Ram
AU - Esener, Sadik C.
AU - Dvornikov, Alexander S.
AU - Rentzepis, Peter M.
PY - 1999/1/1
Y1 - 1999/1/1
N2 - Multimode spirobenzopyran (SP) doped PMMA channel waveguides have been fabricated and one- and two-photon absorption induced photochromic reactions have been demonstrated in these waveguides. Bleaching of SP was performed by coupling a 0.75-mW, 543 nm beam into these guides. Two-photon absorption based coloring was demonstrated using two counterpropagating pulses, one at 1064 nm and the other at 532 nm. We measured the coupling efficiency to be 0.168, which gave intensities inside the guide of 10.494 GW/cm2 and 7.765 GW/cm2 for the IR and the green beams, respectively. The ability to shift the colored spot via pulse delay in the counterpropagating pulse scheme was also demonstrated by moving a colored spot by approx. 30 μm. Finally, two-photon induced fluorescence was observed by exciting the waveguide with a single 1064-nm beam at an intensity of approx. 10 GW/cm2.
AB - Multimode spirobenzopyran (SP) doped PMMA channel waveguides have been fabricated and one- and two-photon absorption induced photochromic reactions have been demonstrated in these waveguides. Bleaching of SP was performed by coupling a 0.75-mW, 543 nm beam into these guides. Two-photon absorption based coloring was demonstrated using two counterpropagating pulses, one at 1064 nm and the other at 532 nm. We measured the coupling efficiency to be 0.168, which gave intensities inside the guide of 10.494 GW/cm2 and 7.765 GW/cm2 for the IR and the green beams, respectively. The ability to shift the colored spot via pulse delay in the counterpropagating pulse scheme was also demonstrated by moving a colored spot by approx. 30 μm. Finally, two-photon induced fluorescence was observed by exciting the waveguide with a single 1064-nm beam at an intensity of approx. 10 GW/cm2.
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M3 - Conference contribution
AN - SCOPUS:0032596794
SN - 0819430935
T3 - Proceedings of SPIE - The International Society for Optical Engineering
SP - 92
EP - 103
BT - Proceedings of SPIE - The International Society for Optical Engineering
PB - Society of Photo-Optical Instrumentation Engineers
T2 - Proceedings of the 1999 Organic Photonic Materials and Devices
Y2 - 25 January 1999 through 27 January 1999
ER -