Abstract: A method, system, and apparatus of sterilizing or disinfecting a space or surface with UV light from a laser that produces UV or other light energy with germicidal effect, at least like UVGI. The light can be controlled in terms of power to be effective for germicidal effect on a given biological organism or agent. In cases where humans might be present and represent a risk of interaction with the laser, techniques are used to remove those risks. The laser can be directed to a single relatively small area, aimed to multiple areas, or scanned to cover larger areas. It allows either human operation at stand-off distances from the relevant spaces, volumes, areas, surfaces (e.g., at least inches and typically feet or tens of feet). It has an indefinite useful operation life.

Abstract: A system capable of highly sensitive measurement of material concentration values in a sample using an optical spectroscopic method is disclosed. The system utilizes high-speed data acquisition and high resolution sampling of the raw signals output by the sensors with reduced total channel counts, and performs frequency analysis of the signals using the Fourier transform method to process all sensor channels in parallel. When each sensor is targeting the detection of some certain materials at some certain frequencies, the system is capable of simultaneous detection of multiple materials of interest in the sample with high measurement sensitivity and high speed.

Abstract: A system capable of highly sensitive measurement of material concentration values in a sample using an optical spectroscopic method is disclosed. The system utilizes high-speed data acquisition and high resolution sampling of the raw signals output by the sensors with reduced total channel counts, and performs frequency analysis of the signals using the Fourier transform method to process all sensor channels in parallel. When each sensor is targeting the detection of some certain materials at some certain frequencies, the system is capable of simultaneous detection of multiple materials of interest in the sample with high measurement sensitivity and high speed.