IT may be of interest to give a preliminary account of what I believe to be a new method of producing acoustic spectra. The method, which is to employ the striations on “variable-density” sound-film ...

As a diffraction grating is being used in the spectroscope to split the light and produce a spectrum, one can use the fact that if a specific wavelength strikes the grating, it forms a symmetric ...

Abstract: In this paper, a novel rotational MEMS diffraction grating for realization of micro-sized spectroscope system with SiOB (Silicon Optical Bench) technology is newly developed, and its ...

The diffraction grating of a spectrometer partially determines the optical resolution that can be achieved by the spectrometer and also determines the wavelength range. Selecting the correct grating ...