OPTICAL STORAGE MECHANISM AND HIGH-ORDER DIFFRACTION PROPERTIES OF NITROAZOBENZENE-CONTAINING POLYESTER FILMS
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OPTICAL STORAGE MECHANISM AND HIGH-ORDER DIFFRACTION PROPERTIES OF NITROAZOBENZENE-CONTAINING POLYESTER FILMS
OPTICAL STORAGE MECHANISM AND HIGH-ORDER DIFFRACTION PROPERTIES OF NITROAZOBENZENE-CONTAINING POLYESTER FILMS
高分子科学(英文版)1998年16卷第1期 页码:67-74
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纸质出版:1998-03-20
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YAN Xingzhonga, WEI Xiong, LUO Tingb, 等. OPTICAL STORAGE MECHANISM AND HIGH-ORDER DIFFRACTION PROPERTIES OF NITROAZOBENZENE-CONTAINING POLYESTER FILMS[J]. 高分子科学(英文版), 1998,16(1):67-74.
YAN Xingzhonga), WEI Xiong, LUO Tingb), et al. OPTICAL STORAGE MECHANISM AND HIGH-ORDER DIFFRACTION PROPERTIES OF NITROAZOBENZENE-CONTAINING POLYESTER FILMS[J]. 1998, 16(1): 67-74.
YAN Xingzhonga, WEI Xiong, LUO Tingb, 等. OPTICAL STORAGE MECHANISM AND HIGH-ORDER DIFFRACTION PROPERTIES OF NITROAZOBENZENE-CONTAINING POLYESTER FILMS[J]. 高分子科学(英文版), 1998,16(1):67-74.DOI:
YAN Xingzhonga), WEI Xiong, LUO Tingb), et al. OPTICAL STORAGE MECHANISM AND HIGH-ORDER DIFFRACTION PROPERTIES OF NITROAZOBENZENE-CONTAINING POLYESTER FILMS[J]. 1998, 16(1): 67-74.DOI:
OPTICAL STORAGE MECHANISM AND HIGH-ORDER DIFFRACTION PROPERTIES OF NITROAZOBENZENE-CONTAINING POLYESTER FILMS
the optical storage proper-ties of two novel polyesters
poly [4'-bis (N
N-oxyethylene) imino-4-nitroazobenzene suc-cinyl] and poly [2'-chloro-4'-bis (N
N-oxyethylene) iminth-4-nitroazobenzene succiny] havebeen studied by multiwave mixing. The high-order diffractions of the orientation gratingsinduced by anisotropy via the reorientation of nitroazobenzene groups and optical infor-mation storage with long-term stability have been realized by multiwave mixing in their films.Up to 3rd order forward diffraction was detected in two wave mixing
while up to 4th order backward diffraction was observed in degenerated four wave mixing.The recording mechanism was explained by the trans-cis-trans isomerization cycles of azobenzene groups.The isomerization of these azobenzene gruops probably undergoes with inversion mechanism under the experimental conditions.The information recorded in these films has been kept for more than 6 months.
Abstract
Using Nd:YAG second harmonic pulse (100 ps)
the optical storage proper-ties of two novel polyesters
poly [4'-bis (N
N-oxyethylene) imino-4-nitroazobenzene suc-cinyl] and poly [2'-chloro-4'-bis (N
N-oxyethylene) iminth-4-nitroazobenzene succiny] havebeen studied by multiwave mixing. The high-order diffractions of the orientation gratingsinduced by anisotropy via the reorientation of nitroazobenzene groups and optical infor-mation storage with long-term stability have been realized by multiwave mixing in their films.Up to 3rd order forward diffraction was detected in two wave mixing
while up to 4th order backward diffraction was observed in degenerated four wave mixing.The recording mechanism was explained by the trans-cis-trans isomerization cycles of azobenzene groups.The isomerization of these azobenzene gruops probably undergoes with inversion mechanism under the experimental conditions.The information recorded in these films has been kept for more than 6 months.
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