Generation of phase-conjugate wave and image strage by dye-doped polymer films

染料掺杂聚合物薄膜产生相位共轭波和图像存储

• 批准号: 63550029
• 负责人: NAKAGAWA Kazuo
• 金额: $ 1.34万
• 依托单位: Muroran Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1988
• 资助国家: 日本
• 起止时间: 1988 至 1989
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-63550029/
• 关键词: Organic dye; Phase-conjugate wave; Image strage

Generation of phase-conjugate (PC) wave by eosin Y or erythmsin B-doped gelatin or polyvinyl alcohol(PVA) films using degenerate four-wave mixing was experimentally investigated. The results of this study are as follows.(1) In respect to the time required for dye-doped polymer films to keep generating a PC wave, PVA film showed about tenfold improvement as compared to gelatin film when the same dye was doped in PVA and gelatin films, This result suggests that the durability of dye against light can be improved by a proper selection of polymer film.(2) Eosin Y or erythrosin B-doped polymer films can generate PC waves simultaneously by saturable absorption process with a fast response time and holographic process with a recording property. The saturable absorption component was separated by changing periodically a phase of probe wave with raving mirror and suppressing the growth of the holographic component. It was revealed from this experiment that the saturable absorption component decreased exponentially as the time proceeded.(3) The phase difference between two components was calculated from three experimental data: total PC signal, the saturable absorption and the holographic components. It became clear that the constructive or destructive interference between the saturable absorption and the holographic components resulted in the intensity fluctuation in total PC signal, depending on the phase difference between two components.

实验研究了使用简并四波混合的曙红Y或红霉素B掺杂明胶或聚乙烯醇（PVA）薄膜产生相位共轭（PC）波。本研究的结果如下：(1)在PVA和明胶薄膜中掺杂相同染料时，就染料掺杂聚合物薄膜持续产生PC波所需的时间而言，PVA薄膜比明胶薄膜提高了约10倍。这一结果表明，通过适当选择聚合物薄膜可以提高染料对光的耐久性。(2)曙红Y或赤藓红 B掺杂聚合物薄膜可以通过响应时间快的饱和吸收过程和具有记录特性的全息过程同时产生PC波。通过用拉动镜周期性地改变探测波的相位并抑制全息成分的生长来分离可饱和吸收成分。实验表明，随着时间的推移，可饱和吸收分量呈指数下降。(3)根据总PC信号、可饱和吸收分量和全息分量这三个实验数据计算两个分量之间的相位差。很明显，可饱和吸收和全息组件之间的相长或相消干涉会导致总 PC 信号的强度波动，具体取决于两个组件之间的相位差。

项目成果

K.Nakagawa: "Real-time and double-exposure phase-conjugate interferometries using eosin-doped gelatin film" Optics Communication. 70. 73-76 (1989)

K.Nakakawa：“使用曙红掺杂明胶薄膜进行实时双曝光相位共轭干涉测量”光学通讯。

K. Nakagawa: "Phase-conjugate interferometries using dye-doped film (in Japanese)" Memoirs of the Muroran Institute of Technology, No. 38, 65-74 (1988).

K. Nakakawa：“使用染料掺杂薄膜进行相位共轭干涉测量（日文）”室兰工业大学回忆录，第 38 期，65-74（1988 年）。

H.Fujuwara: "Real-time image subtraction and addition using two Cross-Polarized phase-conjrgate waves" Optics Communication.

H.Fujuwara：“使用两个交叉偏振相位共轭波进行实时图像减法和加法”光学通信。

藤原裕文: "有機色素膜を用いた位相共役光学" 光学. 18. 122-131 (1989)

Hirofumi Fujiwara：“使用有机染料薄膜的相位共轭光学”光学。 18. 122-131 (1989)

K. Nakagawa: "Real-time and double-exposure phase-conjugate interferometries using eosin-doped gelatin film" Optics Communication, vol. 70, 73-76 (1989).

K. Nakakawa：“使用曙红掺杂明胶薄膜进行实时和双重曝光相位共轭干涉测量”《光学通讯》，卷。