Blazed diffraction grating
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■Reflective Type / Replica Grating ■Aluminum coating applied to the reflective film For the product lineup, specifications, and sales prices of standard products, please refer to the relevant product page on the official website of Edmund Optics Japan (accessible from the product homepage linked above). *You can download the catalog from Edmund Optics Japan that includes this product from the link below.
basic information
The master product of the blazed diffraction grating is created by performing scribing (using a ruling engine) on a glass substrate coated with aluminum. This product is a replica, where the grating shape of the master product is transferred onto an epoxy resin coated on the glass substrate, and a reflective metal film is applied to the surface, resulting in a reflective diffraction grating. Unlike holographic diffraction gratings that have a sinusoidal grating shape, blazed diffraction gratings have a sawtooth grating shape. This grating shape generally provides a higher diffraction efficiency compared to holographic diffraction gratings. In particular, the peak efficiency at the design wavelength (blaze wavelength) in a Littrow configuration is especially high, making it primarily suitable for applications that require high throughput. As one moves away from the blaze wavelength, the diffraction efficiency tends to drop sharply, which is also a characteristic that makes the blazed type effective for narrowband use. *You can download the catalog from Edmund Optics Japan that features this product from the link below.
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Applications/Examples of results
Edmund Optics (EO) is a leading company in optical components, imaging, and photonics technology. It supports markets worldwide, including R&D, electronics, semiconductors, pharmaceuticals, and biomedical fields. EO's products are used in a wide range of applications, from DNA analysis to retinal biometric authentication and high-speed FA applications. With the integration of EO's latest manufacturing capabilities and global logistics network, it is recognized in the market as the No. 1 supplier of optical components available for stock sale. Customers in Japan are served by the local subsidiary, Edmund Optics Japan, Inc.
