Kippelen B, Marder S R, Hendrickx E, Maldonado J L, Guillemet G, Volodin B L, Steele D D, Enami Y, Yao Y J, Wang J F, Röckel H, Erskine L, Peyghambarian N
Optical Sciences Center, University of Arizona, Tucson, AZ 85721, USA.
Science. 1998 Jan 2;279(5347):54-7. doi: 10.1126/science.279.5347.54.
Photorefractive polymers with high diffraction efficiency in the visible and near-infrared regions of the electromagnetic spectrum have been developed. These polymers, which have a large dynamic range because of their high orientational birefringence, incorporate a dye designed to have a large dipole moment and a high linear polarizability anisotropy. Such polymers have enabled demonstrations of imaging through scattering media, using a holographic time-gating technique at a wavelength that is compatible with the transparency of biological tissues and with the emission of low-cost semiconductor laser diodes.
已经开发出在电磁光谱的可见光和近红外区域具有高衍射效率的光折变聚合物。这些聚合物由于具有高取向双折射而具有很大的动态范围，其中掺入了一种设计成具有大偶极矩和高线性极化率各向异性的染料。通过使用与生物组织的透明度以及低成本半导体激光二极管的发射相兼容的波长的全息时间选通技术，此类聚合物已实现了透过散射介质的成像演示。
