Cylindrical Concave Dielectric Mirrors
Dielectric mirrors are made by alternately depositing two dielectric materials with different refractive indices (e.g., SiO₂/Ta₂O₅ or SiO₂/Nb₂O₅), with the optical thickness of each layer being 1/4 of a specific wavelength (λ.) When light is reflected multiple times at these interfaces, the light of a specific wavelength is reflected efficiently due to the interferometric phase length effect. What are the disadvantages of dielectric coating? The reflection characteristics vary with the angle of incidence, and a large angle of incidence may result in a shift in the center wavelength.
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Overview
Dielectric mirrors are made by alternately depositing two dielectric materials with different refractive indices (e.g., SiO₂/Ta₂O₅ or SiO₂/Nb₂O₅), with the optical thickness of each layer being 1/4 of a specific wavelength (λ.) When light is reflected multiple times at these interfaces, the light of a specific wavelength is reflected efficiently due to the interferometric phase length effect. What are the disadvantages of dielectric coating? The reflection characteristics vary with the angle of incidence, and a large angle of incidence may result in a shift in the center wavelength.
Key Features
High reflectivity: in the designed wavelength range, the reflectivity can exceed 99.9%, much higher than metallic mirrors (usually 90%~98%) Low absorption loss: the dielectric coating is virtually non-absorbing, making it suitable for high power laser applications
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Supplier Information
Changchun Yutai Optics Co., Ltd. is a manufacturer with ISO9001 certification. We are specialized in high-performance optical components including lens, mirrors, filters, windows and prisms which are specified by customers. Yutai’s items are widely used in imaging, defense, medical, laser and industry market. As a fast-growing supplier in optics, Yutai Optics has quickly established itself as a leader in optical components with advanced technology and quality control ability, aiming to provide professional service and good quality items to meet customers' request. Yutai has already established long-term cooperative relations with many powerful companies all over the world.
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