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Precision Optics

Precision Optics

Diffraction Gratings for Pulse Compression
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Super Polished Optics
Surface roughness down to 1Å (substrate made from Fused Silica) Ultra-low surface scatter Flatness: λ/10 Surface quality: 10-5 S/D High laser damage threshold
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High Reflectivity Mirrors
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High Flatness Optics
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Optical Assembly
The group delay dispersion (GDD) measurement system characterizes the GDD properties of reflective and transmissive optics that are used with femtosecond pulsed lasers.
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Gires-Tournois Mirrors
The group delay dispersion (GDD) measurement system characterizes the GDD properties of reflective and transmissive optics that are used with femtosecond pulsed lasers.
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High Laser Damage Threshold Optics
The Laser Induced Damage Threshold (LIDT) is one of the most critical parameters for laser systems especially for high power applications. The damage may be initiated and driven by different mechanisms predominantly known as thermal effects or field strength effects. Absorption and Defects contribute to many cases of breakdown varied with different laser conditions.
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Broadband Low GDD Ultrafast Mirrors
Designed to be used in femtosecond laser applications. They are coated using electron beam multilayer dielectric or ion beam sputtering technologies.
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Aspherical Lenses
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Laser Line Dielectric Coatings
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Broadband Dielectric Coatings
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Broadband Metallic Coatings
Metallic mirrors are excellent broadband reflectors. CASTECH offers four standard coatings , covering the UV, visible and IR. These mirrors are available in round sizes from dia.12.7-50.8mm with BK7 or BOROFLOAT .
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Parallel Windows
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Rectangular Windows
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Square Windows
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