Our website will be undergoing maintenance between Saturday, February 15, 2025 at 11:30 pm until Sunday, February 16, 2025 at 3:30 pm Eastern Standard Time. During this time frame, no orders can be placed, and website access may be limited. We appreciate your patience. Thank you.

561.4 nm MaxLine^® laser clean-up filter

Semrock Part Number: LL02-561-12.5

IDEX Part Number: FL-007952 /

Optical Specifications	Value
Transmission Band 1	Tabs > 90% 561.4 nm
Blocking Band 1	ODabs > 5 467.0 - 555.8 nm
Blocking Band 2	ODabs > 6 516.5 - 553.0 nm
Blocking Band 3	ODabs > 6 569.8 - 617.5 nm
Blocking Band 4	ODabs > 5 567.0 - 751.2 nm
Center Wavelength 1	561.4 nm
Guaranteed Minimum Bandwidth 1	Transmission guaranteed for laser wavelength only
FWHM Bandwidth 1 (nominal)	2.1 nm (typical); 3.9 nm (maximum)
Laser Wavelength 1	561.4 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
Filter Thickness (unmounted)	2.0 mm
Filter Thickness Tolerance (unmounted)	± 0.1 mm
Orientation	Arrow on ring indicates preferred direction of propagation of light

total selected Clear selection Select all 5 products from all pages.

Available on

LP02-561RU-25

FL-009060 / 0

Laser Wavelength = 561.4 nm
176 cm^-1 transition
T_avg > 93% 568.7 – 1266.3 nm

Compare

Available on

SP01-561RU-25

FL-009637 / 0

Laser Wavelength = 561.4 nm
176 cm^-1 transition
T_avg > 93% 400 – 554.1 nm

Compare

Available on

BLP02-561R-25

FL-008551 / 0

Filter with 50% edge at 572 nm
434.5 cm^-1 transition
T_avg > 93% from 577.1 – 900 nm

Compare

Available on

NF03-561E-25

FL-009356 / 0

Laser Wavelength = 561.4 nm
Typical Notch Bandwidth = 19 nm
OD_abs > 6 561.4 nm

Compare

Available on

Di02-R561-25x36

FL-007137 / 0

Laser Dichroic Beamsplitter with edge at 573 nm
R_abs > 94% 554 – 568.2 nm
R_avg > 90% 350 – 554 nm
T_avg > 93% 582.4 – 1200 nm
Flatness / RWE: Laser

Compare

1 of 1

Page Size

Topic	Description
Cleaning Optical Filters	Instructions for cleaning hard coated optical filters
Filter Reliability	Compares 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 & Wavenumbers	Compares units of wavelength to wavenumbers and provides formulas for calculating wavenumber shift
Laser Damage Threshold	Provides information for calculating laser damage threshold for pulsed and continuous wave lasers
Working with Optical Density	Tables to describe the relationship between OD and transmission with tips for quickly calculating OD
Filter Spectra at Non-normal Angles of Incidence	Discusses how angle tuning affects the spectral response of different types of filters.
Filter Types for Raman Spectroscopy Applications	Compares the performance of different combinations of LWP and SWP edge filters, notch and laser line filters for Raman applications
Transition Width & Edge Steepness	Describes how measurements for edge steepness and transition width differ

Journal Article

Topic	Description
Thin-Film Filters for Raman Spectroscopy	Turan Erdogan, PhD, and Victor Mizrahi, PhD, Semrock Inc., Spectroscopy, December 2004 Describes the types and functions of filters commonly used in Raman spectroscopy

Application

Topic	Description
Raman Spectroscopy	An overview of Raman spectroscopy, including solutions from Semrock and additional learning resources.

Optical Specifications: Value
Transmission Band 1: Tabs > 90% 561.4 nm
Blocking Band 1: ODabs > 5 467.0 - 555.8 nm
Blocking Band 2: ODabs > 6 516.5 - 553.0 nm
Blocking Band 3: ODabs > 6 569.8 - 617.5 nm
Blocking Band 4: ODabs > 5 567.0 - 751.2 nm
Center Wavelength 1: 561.4 nm
Guaranteed Minimum Bandwidth 1: Transmission guaranteed for laser wavelength only
FWHM Bandwidth 1 (nominal): 2.1 nm (typical); 3.9 nm (maximum)
Laser Wavelength 1: 561.4 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
Filter Thickness (unmounted): 2.0 mm
Filter Thickness Tolerance (unmounted): ± 0.1 mm
Orientation: Arrow on ring indicates preferred direction of propagation of light