248.6 nm MaxLine® laser clean-up filter

Semrock Part Number: LL01-248-12.5

IDEX Part Number: FL-007859  /

Semrock

UV MaxLine laser-line filters provide the highest possible transmission level at a precisely defined laser line, while offering incredibly steep edges to eliminate optical noise from non-lasing (plasma) lines and spontaneous emission.


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Optical Specifications Value
Transmission Band 1 Tabs > 40% 248.6 nm
Blocking Band 1 ODabs > 5 228.2 – 246.1 nm
Blocking Band 2 ODabs > 6 228.7 – 244.9 nm
Blocking Band 3 ODabs > 6 252.3 – 273.5 nm
Blocking Band 4 ODabs > 5 251.1 – 279.9 nm
Center Wavelength 1 248.6 nm
Guaranteed Minimum Bandwidth 1 Transmission guaranteed for laser wavelength only
FWHM Bandwidth 1 (nominal) 1.7 nm (typical); 2.2 nm (maximum)
Laser Wavelength 1 248.6 nm
General Filter Specifications Value
Angle of Incidence 0 ± 2 degrees
Optical Damage Rating 0.1 J/cm² @ 532 nm (10 ns pulse width)
Physical Filter Specifications   Value
Transverse Dimensions (diameter) 12.5 mm
Transverse Tolerance + 0.0 / – 0.1 mm
Filter Thickness (mounted) 3.5 mm
Filter Thickness Tolerance (mounted) ± 0.1 mm
Clear Aperture ≥ 10 mm
Scratch-Dig 60-40
Substrate Type Fused Silica
Filter Thickness (unmounted) 2.0 mm
Filter Thickness Tolerance (unmounted) ± 0.1 mm
Orientation Arrow on ring indicates preferred direction of propagation of light

LP02-248RS-25

FL-009028 / 0

Out of Stock Backordered In Stock
  • Laser Wavelength = 248.6 nm
  • 805 cm-1 transition
  • Tavg > 90% 261.0 – 560.8 nm

1 of 1

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
Measuring Light with Wavelengths & WavenumbersCompares units of wavelength to wavenumbers and provides formulas for calculating wavenumber shift
Laser Damage ThresholdProvides information for calculating laser damage threshold for pulsed and continuous wave lasers
Working with Optical DensityTables to describe the relationship between OD and transmission with tips for quickly calculating OD
Filter Spectra at Non-normal Angles of IncidenceDiscusses how angle tuning affects the spectral response of different types of filters.
Filter Types for Raman Spectroscopy ApplicationsCompares the performance of different combinations of LWP and SWP edge filters, notch and laser line filters for Raman applications
Transition Width & Edge SteepnessDescribes how measurements for edge steepness and transition width differ
Journal Article
TopicDescription
Thin-Film Filters for Raman SpectroscopyTuran Erdogan, PhD, and Victor Mizrahi, PhD, Semrock Inc., Spectroscopy, December 2004
Describes the types and functions of filters commonly used in Raman spectroscopy
Application
TopicDescription
Raman SpectroscopyAn overview of Raman spectroscopy, including solutions from Semrock and additional learning resources.

Specifications

LP02-248RS-25

FL-009028 / 0

Out of Stock Backordered In Stock
  • Laser Wavelength = 248.6 nm
  • 805 cm-1 transition
  • Tavg > 90% 261.0 – 560.8 nm

1 of 1

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
Measuring Light with Wavelengths & WavenumbersCompares units of wavelength to wavenumbers and provides formulas for calculating wavenumber shift
Laser Damage ThresholdProvides information for calculating laser damage threshold for pulsed and continuous wave lasers
Working with Optical DensityTables to describe the relationship between OD and transmission with tips for quickly calculating OD
Filter Spectra at Non-normal Angles of IncidenceDiscusses how angle tuning affects the spectral response of different types of filters.
Filter Types for Raman Spectroscopy ApplicationsCompares the performance of different combinations of LWP and SWP edge filters, notch and laser line filters for Raman applications
Transition Width & Edge SteepnessDescribes how measurements for edge steepness and transition width differ
Journal Article
TopicDescription
Thin-Film Filters for Raman SpectroscopyTuran Erdogan, PhD, and Victor Mizrahi, PhD, Semrock Inc., Spectroscopy, December 2004
Describes the types and functions of filters commonly used in Raman spectroscopy
Application
TopicDescription
Raman SpectroscopyAn overview of Raman spectroscopy, including solutions from Semrock and additional learning resources.