Filters block unwanted light

The nonabsorbing blocking and fused silica substrate ensures that undesired mercury lines and other background light are effectively eliminated without the risk of filter solarisation.

Semrock has released filters for the efficient isolation of individual lines of high-power mercury arc lamps.

Each filter obtains maximum throughput of the desired mercury line through passband transmission and careful optimisation of the filter design.

The nonabsorbing blocking and fused silica substrate ensures that undesired mercury lines and other background light are effectively eliminated without the risk of filter solarisation.

The MaxLamp mercury arc lamp filters isolate the 365nm i-line and the 254nm UV line.

These bandpass filters offer an average transmission of over 93% and over 65% over the 365nm and 254nm bands respectively, with higher and wider out-of-band blocking than incumbent filters.

MaxLamp filters are suitable for applications including spectroscopy, optical metrology, and photolithography mask-aligner and stepper systems.

Both 50 and 25mm diameter versions are in stock for immediate delivery.

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