365 nm MaxLamp™ Mercury line filter

Product Code Description Lead Time Price Quantity Buy / Get Quote
Hg01-365-25 365 nm MaxLamp™ Mercury line filter In Stock £355.00
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Angle of Incidence:

0 ± 7 °

Blocking Band:

ODavg > 2 500 – 700 nm

Blocking Band:

ODavg > 5 382 – 500 nm

Blocking Band:

ODavg > 6 200 – 348 nm

Clear Aperture:

≥ 22 mm

Clear Aperture:

≥ 45 mm

Cone Half-angle:


Filter Effective Index:

1.99 Understanding 'Effective Index of Refraction' neff

Filter Thickness Tolerance, Mounted:

± 0.1mm

Filter Thickness, Mounted:


FWHM Bandwidth:


Guaranteed Minimum Bandwidth:

12 nm

Mercury Line:


Mounted / Unmounted:


Optical Damage Rating:

Testing has proven to show no signs of degradation when exposed to at least 6.0 W of power from an unfiltered xenon arc lamp over a 25 mm diameter (corresponding to 1.2 W/cm2) for over 500 hrs.


Arrow on ring indicates preferred direction of propagation of light

Product Type:

Mercury Line Filter

Semrock Filter Family:

MaxLamp™ Arc Lamp Filters




25 x 3.5 mm

Substrate Thickness:


Substrate Type:

low-autofluorescence optical quality glass

Surface Quality (Scratch-Dig):


Transmission Band:

Tavg > 93% 360 – 372 nm

Transmission Wavelength:


Transverse Dimensions, Diameter:


Transverse Tolerance, Mounted:

+ 0.0 / - 0.1 mm

These high-performance mercury line filters are ideal for use with high-power mercury arc lamps for spectroscopy, optical metrology and photolithography mask-aligner and stepper systems. Maximum throughput is obtained by careful optimization fo the filter design to allow fo use in a variety of different applications. The non-absorbing blocking ensures that all other mercury lines as well as intra-line intensity are effectively eliminated.


Note on spectral plots:
In the past, each shipment has included a spectral plot for every filter and every lot code in the shipment. In an effort to be more eco-friendly, we will no longer be including these plots with each shipment. If you require spetral plot data, please see here for more information.