论文标题
全循环成像的空间分辨率
Spatial resolution of omni-resonant imaging
论文作者
论文摘要
OMNI召唤是指通过平面腔扩大光谱传输，而不是通过改变腔体结构，而是通过明智地预处着入射光场。因此，可以通过与所有波长同时共鸣的腔体进行宽带成像。我们在这里检查了全循环成像的空间分辨率，发现腔谐振的光谱线宽决定了空间分辨率。令人惊讶的是，与常规的衍射限制光学成像系统相反，空间分辨率在较长的波长下改善了较长的波长，而空间分辨率在较短波长下改善了空间分辨率。这些结果对于从透明太阳能窗口到非线性谐振图像处理的应用非常重要。
Omni-resonance refers to the broadening of the spectral transmission through a planar cavity, not by changing the cavity structure, but by judiciously preconditioning the incident optical field. As such, broadband imaging can be performed through such a cavity with all the wavelengths simultaneously resonating. We examine here the spatial resolution of omni-resonant imaging and find that the spectral linewidth of the cavity resonance determines the spatial resolution. Surprisingly, the spatial resolution improves at longer wavelengths because of the negative angular dispersion intrinsic to Fabry-Perot resonances, in contrast to conventional diffraction-limited optical imaging systems where the spatial resolution improves at shorter wavelengths. These results are important for applications ranging from transparent solar windows to nonlinear resonant image processing.
