Coatings :: High-reflective Coatings :: Dielectric High Reflective Coatings (DHR) - Laser Optics and lasers for OEMs universities research laboratories

Home

Coatings

High-reflective Coatings

Dielectric High Reflective Coatings (DHR)

Description

Dielectric High Reflective Coatings (DHR)

It is well know that dielectric coating can reaches high reflection( more than 99.8% at designed wavelength can be available) and generally used in single wavelength laser cavity where the lowest cavity loss at a center wavelength is essential. We can provide such coating with center wavelength from 250nm to 2200nm according to customer's special inquiry. When selecting a suitable dielectric high reflective coating, the damage threshold must be pay attention.


l R0>99.8%@1064nm	l R0>99.5%@1064nm (RS>99.9%, RP<99.2%)

Metallic High Reflective Coatings (MHR)

We provide metallic high reflective coatings by material of Au, Ag, Al, Cr, and Ni-Cr. These coatings are applied to where the consistent high reflection in a wide spectral rang is necessary. Their reflectivity are not higher than dielectrics HR coatings, but their HR spectrum can over near-UV, visible and near-IR. In order to prevent these metallic coatings from oxidization, these coatings have been deposited on a layer of dielectrics coating.


l Ravg>95%@450~12000nm (Protected -Silver) lRavg>98%@2000~12000nm (Protected -Gold)	l Ravg>87%@400~1200nm (Protected -Al) l Ravg>Ravg>93%@400~1200nm (Enhanced -Al)