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Volume phase holographic (VPH) gratings use diffraction to disperse light into its component colors
VPH gratings can provide high efficiency over broad bandwidths and all polarizations
Our gratings can be manufactured in various shapes and sizes, from 8 mm to 300 mm
We can also manufacture custom optics like this grism, which incorporates a grating and prism
Our VPH gratings are encapsulated in glass, which allows easy cleaning and handling
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The founders of Wasatch Photonics began imaging volume phase holographic (VPH) gratings in dichromated gelatin over 40 years ago, and no one does it better. We draw on our multiple patented design technologies to optimize each grating to its application, from stock gratings for R&D to custom gratings for our many OEMs. Our strengths include high efficiency, low polarization sensitivity, and uniform performance over broad bandwidths & large clear apertures – all in a robust, field-tested package.
VPH transmission gratings provide superior signal to noise for light-starved techniques like Raman, NIR, and fluorescence. Our proprietary process encapsulates the grating structure between two AR-coated surfaces for easy cleaning & handling. This enables compact, easy-to-align instruments like our own UV/VIS/NIR spectrometers. Drawing on our own experience in spectroscopy, we can balance bandwidth, polarization, and efficiency to optimize your OEM design or research project, at wavelengths 300-2500 nm.
Ultra-sensitive Compact Raman Spectrometers & Systems – Research & OEM, 248-1064 nm
Low f/#, high throughput optical designs for maximum sensitivity & speed ✓ Highly configurable, from modular to fully integrated; free software & SDKs ✓ Compact, thermally stable, robust design with high reproducibility for OEMs more
Making Raman Measurements Reproducible
Making Raman Measurements Reproducible - get >99.5% unit-to-unit spectrum agreement more
Wasatch Photonics was founded in 2002 based on disruptive VPH grating technology that offers high efficiency over broad bandwidths. Today, we leverage that technology to create the most sensitive compact spectrometers in the world, combining advanced optical design with deep knowledge in te ... more
