光束转向
光电子学
计算机科学
调制(音乐)
液晶
相(物质)
微透镜
光调制器
干涉测量
作者
Naoya Matsumoto,Hiromi Itoh,Takashi Inoue,Tomoko Otsu,Haruyoshi Toyoda
出处
期刊:Optics Express
[The Optical Society]
日期:2014-10-02
卷期号:22 (20): 24722-24722
被引量:18
摘要
The LCOS spatial light modulator (LCOS-SLM) can generate desired multiple spot patterns (MSPs) via the application of suitable computer-generated-holograms (CGHs), but the MSP intensity distribution varies because ambient temperature affects the phase modulation characteristic and causes wavefront distortion. To generate high-optical-quality MSPs we use our hardware-compensated (with a Peltier system to even out phase modulation) and software-corrected (via multiplication of the CGH by temperature correction coefficients) LCOS-SLMs. Experimental results with a 14 × 14 MSP generation show that the hardware-compensated LCOS-SLM provides stable MSPs between 9 to 32 °C. The software-corrected LCOS-SLM provides uniform spots over twice the temperature range obtained with conventional SLM method. We confirm that our methods are highly efficient for use in two-photon excitation microscopy application such as multifocal mulitphoton microscopy.
科研通智能强力驱动
Strongly Powered by AbleSci AI