论文标题
遍布可见的全循环成像
Omni-resonant imaging across the visible
论文作者
论文摘要
仅在狭窄的线宽和特定的空间模式下提供光腔中的共振场增强。因此，范围限制性的平面Fabry-p {é}腐烂腔尚未贡献到迄今为止的白光成像，这需要一个高度多模型的宽带场才能满足共振条件。 Here we show that introducing judicious angular-dispersion circumvents the fundamental trade-off between cavity linewidth and finesse in a Fabry-P{é}rot cavity by exciting a 130-nm-bandwidth achromatic resonance across the visible spectrum, which far exceeds the finesse-limited linewidth (0.5~nm), and even exceeds the free spectral range (45~nm).这种全谐振构型可在可见的100 nm带宽上具有最小的球形和色差的宽带颜色成像。我们使用相干和不相互的光以及包含固定物体和移动物体的空间扩展和局部磁场演示了全循环成像。这项工作为利用空间结构的字段的宽带共振增强功能铺平了道路，例如在太阳能窗口中。
Resonant field enhancement in optical cavities is provided over only narrow linewidths and for specific spatial modes. Consequently, spectrally restrictive planar Fabry-P{é}rot cavities have not contributed to date to white-light imaging, which necessitates a highly multimoded broadband field to satisfy the resonance condition. Here we show that introducing judicious angular-dispersion circumvents the fundamental trade-off between cavity linewidth and finesse in a Fabry-P{é}rot cavity by exciting a 130-nm-bandwidth achromatic resonance across the visible spectrum, which far exceeds the finesse-limited linewidth (0.5~nm), and even exceeds the free spectral range (45~nm). This omni-resonant configuration enables broadband color-imaging over a 100-nm-bandwidth in the visible with minimal spherical and chromatic aberrations. We demonstrate omni-resonant imaging using coherent and incoherent light, and spatially extended and localized fields comprising stationary and moving objects. This work paves the way to harnessing broadband resonant enhancements for spatially structured fields, as needed for example in solar windows.
