Abstract: A compact holographic SLM spectrometer without an optical diffraction element is provided. The compact holographic SLM spectrometer performs the basic spectrometer function using a spatial light modulator (SLM). The compact holographic SLM spectrometer includes a light source, an input element, a collimator, an SLM, an analysis and detection optics, at least one detector, and a digital and/or analog control device.

Abstract: A high-resolution optical spectrometer with multiple diffractive optical elements operates under broadband light and enables spectral splitting with 3D diffractive optical elements. Diffractive optical elements are used to provide concentration of light as well as spectral splitting. Depending on the application, the high-resolution optical spectrometer operates with a reflection or transmission diffractive optical element. The number of operating wavelengths, spectral resolution, and operating bandwidth of diffractive optical elements are flexible depending on application.

Abstract: A system to develop a light detection and range determination (LIDAR) application by a rotation of optical elements embedded on a rotating disk in a spherical geometry is provided. The system further enables to conduct a fastest possible spatial scanning mechanically and to determine flight times of light beams by adaptive elements according to a distance and a size of a target region.