Patent ID: 8736825

Claim:
A system for measuring a characteristic of at least one specimen, comprising: at least one light source irradiating an at least one optical signal having a spectral range from about 100 nm to about 3000 nm; at least one wavelength selector configured to selectively narrow the spectral range of the at least one optical signal; at least one beam splitter; at least one reference detector in optical communication with the at least one beam splitter and configured to measure at least one characteristic of the at least one optical signal; wherein the at least one specimen is irradiated with the at least one optical signal from the at least one beam splitter; at least one reflectance detector in optical communication with the at least one specimen via the at least one beam splitter, the at least one reflectance detector configured to measure the at least one optical characteristic of the at least one optical signal reflected by the at least one specimen; at least one processor in communication with at least one of the at least one reference detector, the at least one specimen, and the at least one reflectance detector, the at least one processor configured to calculate at least one characteristic of the at least one specimen based on data received from at least one of the at least one reference detector, the at least one specimen, and the at least one reflectance detector, wherein the at least one characteristic of the at least one specimen comprises a quantum efficiency of the at least one specimen.