Tanigawa Takashi, Sakakibara Yu, Fang Shaobo, Sekikawa Taro, Yamashita Mikio
Department of Applied Physics, Hokkaido University, Japan.
Opt Lett. 2009 Jun 1;34(11):1696-8. doi: 10.1364/ol.34.001696.
We fabricated a 648 pixel, two-dimensional spatial light modulator (SLM) with a transmittance of more than 85% in the wavelength region from 260 to 1,100 nm. The phase modulation characteristics of the liquid-crystal SLM were clarified. Furthermore, the SLM enabled us to compensate for chirp of 270 fs UV pulses and chirp of 120 fs near-IR pulses so that the former and latter pulse durations, respectively, were shortened to 35 and 25 fs. This suggests that the SLM can be utilized, in the UV to near-IR region, for the generation of monocycle optical pulses, pulse shaping, and other applications.
我们制造了一个648像素的二维空间光调制器（SLM），其在260至1100纳米波长范围内的透过率超过85%。阐明了液晶空间光调制器的相位调制特性。此外，该空间光调制器使我们能够补偿270飞秒紫外脉冲的啁啾和120飞秒近红外脉冲的啁啾，从而使前者和后者的脉冲持续时间分别缩短至35飞秒和25飞秒。这表明该空间光调制器可在紫外到近红外区域用于产生单周期光脉冲、脉冲整形及其他应用。
