Real-time holographic imaging with a bacteriorhodopsin film.
Real-time holographic imaging with a bacteriorhodopsin film.
复制标题
使用细菌视紫红质胶片进行实时全息成像。
作者：
Yu;Robert R. Birge;Q. Song;Costas Tseronis
我们研究了在He-Ne激光照射下，利用细菌视紫红质薄膜作为实时材料，实现高分辨率、大空间带宽产品全息无透镜成像的可能性。在短脉冲激光激励下，全息图的成像反射率与阅读光强成线性关系。记录过程的时间响应的特征在于与照明的强度调制相关的两个指数增加的函数。获得了80线/mm的图像分辨率和~2 × 106的空间带宽积。
We investigate the potential of high-resolution and large space–bandwidth product holographic lensless imaging by using bacteriorhodopsin film as a real-time material under He–Ne laser illumination. The imaging reflectivity is found to be linearly proportional to the reading light intensity when the hologram is under short laser pulse stimulation. The time response of the recording process is characterized by two exponentially increasing functions that are related to the intensity modulation of the illumination. An image resolution of 80 lines/mm and a space–bandwidth product of ~2 × 106 are obtained.