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A particular kind of diffraction grating created using holographic methods is a holographic concave grating. It is a concave surface that features a diffraction grating-like pattern made up of a collection of closely spaced parallel lines or grooves.
The holographic concave grating is made by employing a laser beam to holographically record the grating pattern on a photosensitive material. A concave grating pattern is created when the reference beam illuminates a hologram, which diffracts the incident light into its constituent wavelengths.
This kind of grating is superior to other kinds of gratings in that it is lighter, more effective at diffraction, and has a wider dispersion angle. They are frequently employed in spectroscopy, laser wavelength selection, and optical communication systems, among other uses.
Global holographic concave grating market accounted for $XX Billion in 2023 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2024 to 2030.
Logan, UT-based Wasatch Photonics Inc.
Volume phase holographic gratings with high performance for astronomy, spectroscopy, hyperspectral imaging, and laser pulse compression. Raman, UV, VIS, NIR, and fluorescence spectrometers that are small and sensitive, 248 to 2500 nm.
spectrometers for 400 to 1600 nm SD-OCT that operate at high speeds. Custom OEM designs as well as off-the-shelf research solutions are available.Privately owned; 13,000 square feet; 70 staff.Manufacturers of both stock and custom products
A variety of holographic master gratings are produced by HORIBA Scientific from which highly accurate copies are made.
Recorded on spherical substrates with equidistant and parallel grooves are Type I holographic concave gratings.
They interchangeably have the same geometric optical characteristics as traditionally governed gratings.
Type I holographic concave gratings are typically set up on the Rowland circle, which is the circle formed by the grating centre and its tangential radius of curvature when employed in a spectrograph.Replica holographic gratings recorded in concave substrates from the original gratings.Exact groove periodicity much less stray light than a concave ruled grating
Gratings that are preferably utilised in mountings based on Rowland circles with slits that are situated in circles with radii equal to the grating’s radius of curvature enable the creation of spectrographs with high resolution.Materials for the base: Pyrex and Zerodur
