Broadband Metallic Coatings

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Broadband Metallic 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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Order Information：

To order append the coating code PS to the substrate number.

For example, MIR-127-031-BK7-PS。

Substrate Material	BK7 or BOROFLOAT
Damage Threshold	UVEA：100W/cm² 0.3J/cm² , 10 nsec pulses @308nm,typical EA：100W/cm² 0.3J/cm² ,10 nsec pulses @532nm,typical PS：1000W/cm² 1J/cm² , 10 nsec pulses @1064nm,typical PG：200W/cm² 1J/cm² , 10 nsec pulses @1064nm,typical
Coating Code	Wavelength Range（nm）	Reflectivity per Surface	Coating Type
UVEA	250-600	Ravg>90%	UV Enhanced Aluminum
EA	450-700	Ravg>93% ,Rmin>90%	Enhanced Aluminum
PS	480-1100 1100-20000	Ravg>96% ,Rmin>93% Ravg>98.5%, Rmin>97%	Protected Silver
PG	650-1700 1700-20000	Ravg>96% ,Rmin>93% Ravg>98% ,Ravg>96%	Protected Gold