Narrowband multispectral liquid crystal tunable filter. Academic Article uri icon

abstract

  • Multispectral tunable filters with high performance are desirable components in various biomedical and industrial applications. In this Letter, we present a new narrowband multispectral tunable filter with high throughput over a wide dynamic range. It is composed from a wideband large dynamic range liquid crystal tunable filter combined with a multiple narrowbands spectral filter made of two stacks of photonic crystals and cavity layer in between. The filter tunes between nine spectral bands covering the range 450–1000 nm with bandwidth< 10 nm and throughput> 80%.

publication date

  • January 1, 2016