▎ 摘　　要

NOVELTY - The device (100) has a transmitter (110) for transmitting a transmitted light, where the transmitter having an atomically two-dimensional material, such as graphene, for emitting the transmitted light. The material is tunable to select a predominate wavelength of the light within a tunable range of wavelengths. A receiver receives a received light after encountering an environment (101). The receiver characterizes the environment from a measured change between the received and transmitted lights. A beam splitter splits the combined light (111) into the transmitted and a reference light. A calibrator measures characteristics of the reference light from the splitter. USE - Measurement device for characterization of environment. ADVANTAGE - The measurement device characterizes the environment from a measured change between the received light and the transmitted light. The device can be used to characterize the environment without requiring mechanical movement between the detector and the wavelength dispersion element. DESCRIPTION OF DRAWING(S) - The drawing shows a block representation of the measurement device for characterization of an environment. 100Measurement device 101Environment 110Transmitter 111Combined light 116Electrode