RMI Laser Optics and Coatings Prototype Through Production

Dichroic Filter coatings are designed to transmit one spectral region (passband) and reflect another (rejection band). The filter is a Short Wave Pass if the passband is to the left of the transition slope, and a Long Wave Pass if the passband is to the right of the slope. The advantages of dichroic filters over colored glass filters are: 1) the rejection band is reflected rather than absorbed; 2) steeper transition slope between the passband and the rejection band; i.e. sharper cut-on or cut-off; 3) coatings can be custom designed for specific center wavelengths.

RMI STANDARD SPECIFICATIONS
Angle of Incidence:	0º or 45º
Passband:	T = 50% + 5% at λ0 Tavg > 90% at 0º Tavg > 85% at 45º
Rejection Band:	Ravg > 99% at 0º Ravg > 98% at 45º
Damage Threshold:	3 J/cm2, 10 ns pulse

Applicable Coatings Quick Links

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Last Updated ( Friday, 27 April 2007 )

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