• Acta Photonica Sinica
  • Vol. 44, Issue 2, 209003 (2015)
ZHENG Mei-ling1、*, XIE Xin1, SU Ling-li1, LI Ben-tian1, FU Shen-cheng1, SHI Feng2, and WANG Xiu-li3
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
  • 3[in Chinese]
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    DOI: 10.3788/gzxb20154402.0209003 Cite this Article
    ZHENG Mei-ling, XIE Xin, SU Ling-li, LI Ben-tian, FU Shen-cheng, SHI Feng, WANG Xiu-li. Polarization Holographic Grating Recording in Spiropyran Doped Polymers Under Bi-photonic Irradiations[J]. Acta Photonica Sinica, 2015, 44(2): 209003 Copy Citation Text show less

    Abstract

    The exposure sensitivity and polarization sensitivity of spiropyran doped polymers after the irradiation in short-wavelength range were significantly improved. Based on such properties, holographic grating recordings accompanying with a linearly polarized blue-violet beam (405 nm) in the photochromic film were performed by two coherent green beams (532 nm) for s-p formation. Under the bi-photonic action of 405 nm and 532 nm, temporal evolution of diffraction efficiency was strongly dependent on auxiliary light intensity. It was found the blue-violet irradiation plays double roles in holographic recordings: on one hand, providing the molecular orientationable merocyanine for the recording beams;on the other, disrupting the formation of refractive index gratings and reducing the conversion activity of merocyanine molecule.Taking the existence of merocyanine aggregation in the random light field of interference fringes into account, an theoretical model was established which reveals the relationship between diffraction efficiency and light-rate-constant of each molecular.The experimental results are precisely fitted with this model, the microscopic reaction mechanism of spiropyran and merocyanine molecules in polarization holographic recording was effectively explained.
    ZHENG Mei-ling, XIE Xin, SU Ling-li, LI Ben-tian, FU Shen-cheng, SHI Feng, WANG Xiu-li. Polarization Holographic Grating Recording in Spiropyran Doped Polymers Under Bi-photonic Irradiations[J]. Acta Photonica Sinica, 2015, 44(2): 209003
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