488 nm RazorEdge Dichroic laser beamsplitter

Semrock Part Number: LPD02-488RU-25

IDEX Part Number: FL-008034  /

Semrock

Each beamsplitter reflects a standard laser line incident at 45° while efficiently passing the longer Raman-shifted wavelengths. The filters exhibit ultrasteep transitions from reflection to transmission, with a guaranteed transition width of < 1% of the laser wavelength for the U-grade version. This laser dichroic beamsplitter is optimized for reflecting laser beams up to 2.5 mm in diameter while minimizing RWE.

 

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Optical Specifications Value
Transmission Band 1 Tavg > 93% 494.3 – 756.4 nm
Reflection Band 1 Rabs > 94% 488 nm
Reflection Band 1 (p-pol) Rabs > 90% 488 nm
Reflection Band 1 (s-pol) Rabs > 98% 488 nm
Edge Wavelength 1 492.8 nm
Edge Steepness (%) 0.5%
Edge Steepness (cm-1) 101.9 cm-1
Edge Steepness (nm) 2.4 nm
Laser Wavelength 1 488 nm
Transition Width (nm) 4.9 nm
Transition Width (cm-1) 203 cm-1
General Filter Specifications Value
Angle of Incidence 45 degrees with a shift of <= 0.20%/degree (35 – 55 degrees)
Cone Half-angle 0.5 degrees
Optical Damage Rating 1 J/cm² @ 532 nm (10 ns pulse width)
Reflected Wavefront Error < 6λ P-V RWE @ 632.8 nm
Steepness Ultra Steep
Flatness / RWE Classification   Laser
Physical Filter Specifications   Value
Transverse Dimensions (diameter) 25 mm
Transverse Tolerance + 0.0 / - 0.1 mm
Filter Thickness (mounted) 3.5 mm
Filter Thickness Tolerance (mounted) ± 0.1 mm
Clear Aperture ≥ 22 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.

LL01-488-12.5

FL-007938 / 0

Out of Stock Backordered In Stock
  • Laser Wavelength = 488 nm
  • Tabs > 90% 488 nm
  • FWHM of 1.9 nm (typical); 3.4 nm (maximum)

LP02-488RU-25

FL-009041 / 0

Out of Stock Backordered In Stock
  • Laser Wavelength = 488 nm
  • 203 cm-1 transition
  • Tavg > 93% 494.3 – 1100.8 nm

LP02-488RE-25

FL-009034 / 0

Out of Stock Backordered In Stock
  • Laser Wavelength = 488 nm
  • 102 cm-1 transition
  • Tavg > 93% 491.2 – 1100.8 nm

NF03-488E-25

FL-009361 / 0

Out of Stock Backordered In Stock
  • Laser Wavelength = 488 nm
  • Typical Notch Bandwidth = 14 nm
  • ODabs > 6 488 nm

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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
Flatness of Dichroic BeamsplittersDescribes the impact of non-flat dichroic beamsplitters on microscope image fidelity
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
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
RazorEdge Filter LayoutsDescribes two different filter layouts that are commonly used in Raman applications
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
White Paper
TopicDescription
Flatness of Dichroic Beamsplitters Affects Focus and Image QualityAnalysis of how the radius of curvature of a dichroic filter affects focal plane shift, spot size and image fidelity in fluorescence microscopy.
Application
TopicDescription
Raman SpectroscopyAn overview of Raman spectroscopy, including solutions from Semrock and additional learning resources.

Specifications

LL01-488-12.5

FL-007938 / 0

Out of Stock Backordered In Stock
  • Laser Wavelength = 488 nm
  • Tabs > 90% 488 nm
  • FWHM of 1.9 nm (typical); 3.4 nm (maximum)

LP02-488RU-25

FL-009041 / 0

Out of Stock Backordered In Stock
  • Laser Wavelength = 488 nm
  • 203 cm-1 transition
  • Tavg > 93% 494.3 – 1100.8 nm

LP02-488RE-25

FL-009034 / 0

Out of Stock Backordered In Stock
  • Laser Wavelength = 488 nm
  • 102 cm-1 transition
  • Tavg > 93% 491.2 – 1100.8 nm

NF03-488E-25

FL-009361 / 0

Out of Stock Backordered In Stock
  • Laser Wavelength = 488 nm
  • Typical Notch Bandwidth = 14 nm
  • ODabs > 6 488 nm