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254 nm MaxLamp™ Mercury line filter

Part Number: Hg01-254-25

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  • Your filter spectrum may differ slightly from the typical spectrum above, but is certified to meet the optical specifications noted below.
Semrock Optical Filter: Hg01-254  Hg01  254
254 nm MaxLamp™ Mercury line filter
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 of the filter design to allow for 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.
Part NumberSizePrice1Stock StatusQuantity
Hg01-254-2525 mm x 3.5 mm$455In StockAdd To Cart
Hg01-254-5050 mm x 3.5 mm$1,285In StockAdd To Cart

Don’t see a size you need? Create your own custom sized part – available in less than a week.

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Custom Sizing Limits:
Diameter Range: 5mm - 50.8mm
Rectangular Dimensions: 5mm - 50.8mm

Substrate thickness/tolerance as listed on Specifications tab.
Dimensional tolerances are ±0.1mm for unhoused parts.

For sizes outside the limits listed above, please contact customer service at 1-866-SEMROCK



1) US domestic pricing only. If you are ordering from outside the US, please contact your nearest regional distributor for the correct list price.
Optical Specifications
SpecificationValue
Transmission Band 1Tavg > 65% 244 – 256 nm
Center Wavelength 1250 nm
Guaranteed Minimum Bandwidth 112 nm
FWHM Bandwidth 1 (nominal)15.2 nm
Blocking Band 1ODavg > 6 200 – 236 nm
Blocking Band 2ODavg > 4 263 – 450 nm
Blocking Band 3ODavg > 2 450 – 600 nm

General Filter Specifications
SpecificationValue
MercuryLine253.7 nm
Angle of Incidence0 ± 7 degrees
Cone Half-angle10 degrees
Optical Damage RatingTesting 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.
Filter Effective Index2.36 Understanding ‘Effective Index of Refraction’ neff

Physical Filter Specifications (applies to standard sized parts; contact us regarding other sizes)
SpecificationValue
Transverse Dimensions (Diameter)25 mm
Transverse Dimensions 2 (Diameter)50 mm
Transverse Tolerance (mounted)+ 0.0 / – 0.1 mm
Filter Thickness (Mounted)3.5 mm
Filter Thickness Tolerance (Mounted)± 0.1 mm
Clear Aperture≥ 22 mm
Clear Aperture 2≥ 45 mm
Scratch-Dig80-50
Substrate Thickness (unmounted)2.0 mm
Substrate Thickness Tolerance (unmounted)± 0.1 mm
OrientationArrow on ring indicates preferred direction of propagation of light

Complementary Filters

Hg01-365.png

365 nm MaxLamp™ Mercury line filter

• Mercury Line of 365 nm
• Tavg > 93% 360 – 372 nm
• Center Wavelength of 366 nm and GMBW of 12 nm


Custom sizing available in less than a week (sizing fee applies).
Part # Hg01-365-25
$355
(Non-US pricing info)


Adjacent Bandpass Filters

FF01-260_16.png

260/16 nm BrightLine® single-band bandpass filter

• Tavg > 55% 252 – 268 nm
• Center Wavelength of 260 nm and GMBW of 16nm nm
• FWHM of 20 nm


Custom sizing available in less than a week (sizing fee applies).
Part # FF01-260/16-25
$405
(Non-US pricing info)



FF01-280_10.png

280/10 nm BrightLine® single-band bandpass filter

• Tavg > 60% 275 – 285 nm
• Center Wavelength of 280 nm and GMBW of 10 nm
• FWHM of 12.2 nm


Custom sizing available in less than a week (sizing fee applies).
Part # FF01-280/10-25
$495
(Non-US pricing info)


Edge Filters

FF01-267_LP.png

267 nm blocking edge BrightLine® long-pass filter

• Filter with 50% edge at 274 nm
• Tavg > 85% 277 – 358 nm


Custom sizing available in less than a week (sizing fee applies).
Part # FF01-267/LP-25
$455
(Non-US pricing info)



FF01-276_SP.png

276 nm blocking edge BrightLine® short-pass filter

• Filter with 50% edge at 272 nm
• Tavg > 35% 245 – 270 nm


Custom sizing available in less than a week (sizing fee applies).
Part # FF01-276/SP-25
$455
(Non-US pricing info)


Dichroic Beamsplitters

FF310-Di01.png

310 nm edge BrightLine® single-edge standard epi-fluorescence dichroic beamsplitter

• Dichroic Beamsplitter with edge at 310 nm
• Ravg > 98% 255 – 295 nm
• Tavg > 90% 315 – 600 nm
• Flatness / RWE: Standard Epi-fluorescence


Custom sizing available in less than a week (sizing fee applies).
Part # FF310-Di01-25x36
$435
(Non-US pricing info)



FF347-Di01.png

347 nm edge BrightLine® single-edge standard epi-fluorescence dichroic beamsplitter

• Dichroic Beamsplitter with edge at 347 nm
• Ravg > 97% 240 – 325 nm
• Tavg > 93% 380 – 800 nm
• Flatness / RWE: Standard Epi-fluorescence


Custom sizing available in less than a week (sizing fee applies).
Part # FF347-Di01-25x36
$495
(Non-US pricing info)


[x]
US domestic pricing only. If you are ordering from outside the US, please contact your nearest regional distributor for the correct list price.
Tech Note
TopicDescription
Cleaning Optical FiltersInstructions for cleaning hard coated optical filters
Filter ReliabilityCompares the performance and reliability of hard coated filters to traditional soft-coated filters and provides information about the testing standards for Semrock filters
Working with Optical DensityTables to describe the relationship between OD and transmission with tips for quickly calculating OD
Application
TopicDescription
Mercury Line SpectroscopyAn overview of mercury line spectroscopy, including solutions from Semrock and additional learning resources.

254 MaxLamp Mercury Line Filters Hg Hg01-254 Hg01 Hg01-254-25 Hg01-254-50

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