Each dichroic beamsplitter reflects a standard laser line incident at 45° while efficiently passing the shorter & longer wavelengths. This laser dichroic beamsplitter is optimized for reflecting laser beams up to 2.5 mm in diameter while minimizing RWE.
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776.48 USD EachUS Domestic pricing – contact your local distributor for other currency list prices
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LL01-785-12.5
FL-007933 / 0
- Laser Wavelength = 785 nm
- Tabs > 90% 785 nm
- FWHM of 3.0 nm (typical); 5.5 nm (maximum)
LD01-785/10-12.5
FL-007686 / 0
- Laser Wavelength = 785 nm
- Tabs > 90% 780 – 790 nm
- Center Wavelength of 785 nm and GMBW of 10 nm
NF03-785E-25
FL-009358 / 0
- Laser Wavelength = 785 nm
- Typical Notch Bandwidth = 39 nm
- ODabs > 6 785 nm
1 of 1
| Topic | Description |
| Cleaning Optical Filters | Instructions for cleaning hard coated optical filters |
| Cube Assembly Instructions | PDF and video instruction for installing filters into popular filter cubes |
| 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 |
| Flatness of Dichroic Beamsplitters | Describes the impact of non-flat dichroic beamsplitters on microscope image fidelity |
| Measuring Light with Wavelengths & Wavenumbers | Compares units of wavelength to wavenumbers and provides formulas for calculating wavenumber shift |
| Measurement of Optical Filters | Describes the problems encountered when measuring optical filter spectra with commercially available spectrophotometers |
| Laser Damage Threshold | Provides information for calculating laser damage threshold for pulsed and continuous wave lasers |
| Tunable Bandpass Filters | Compares the spectral response of tunable bandpass filters to traditional filter spectra at non-normal angles of incidence |
| Link | Description |
| Request a Drawing | Looking for an optical filter drawing file for this product? Request one now! |
| Request Custom Optical Filters | Contact us today to start a conversation about custom optical filters. |
| Access Optical Filter Warranty | Find our warranty in our Terms & Conditions of Sale. |
| Semrock Optical Filters RoHS Certificate | RoHS, stands for Restriction of Hazardous Substances. The current RoHS Directive currently restricts the use of ten substances. |
| Semrock Optical Filters REACH Certificate | REACH is a regulation of the European Union, adopted to improve the protection of human health and the environment from the risks that can be posed by chemicals, while enhancing the competitiveness of the EU chemicals industry. |
| Download Optical Filters 101 Guide | Find an in-depth overview of optical filter principles, specifications, and applications. Request a digital copy of this guide now. |
| Request Clean Filter Checklist Poster | Looking to clean your optical filters? Need instructions? Request a printed copy of our Clean Filter Checklist Poster. |
Question 1: What is the NFD01-785-25x36 used for?
Answer: This notch laser dichroic beamsplitter is commonly used in Raman spectroscopy and other laser-based optical instruments that require laser separation from signal light.
Question 2: How do I know if this beamsplitter is right for my application?
Answer: This beamsplitter is typically a good choice when your system:
- Uses a 785 nm excitation laser
- Requires reflecting laser light at a 45° angle of incidence
- Needs high laser reflection efficiency
- Needs high transmission of Raman-shifted or fluorescence signal wavelengths
Verify your laser wavelength, optical geometry, and signal range before ordering.
Question 3: How efficiently does it reflect a 785 nm laser?
Answer: The beamsplitter provides greater than 98% reflection at 785 nm, making it highly effective at directing laser excitation light through the optical system.
Question 4: Why is 785 nm commonly used in Raman systems?
Answer: 785 nm lasers are frequently used because they can help reduce fluorescence interference while generating strong Raman signals in many sample types, making them a popular choice for Raman instrumentation. This beamsplitter is optimized specifically for that wavelength.
Question 5: How does this beamsplitter differ from a standard mirror?
Answer: Unlike a mirror, which reflects a broad range of wavelengths, this dichroic beamsplitter selectively reflects the 785 nm laser wavelength while transmitting the desired signal wavelengths. This selective behavior is critical in Raman spectroscopy applications.
total selected
Clear selection
Select all 3 products from all pages.
LL01-785-12.5
FL-007933 / 0
- Laser Wavelength = 785 nm
- Tabs > 90% 785 nm
- FWHM of 3.0 nm (typical); 5.5 nm (maximum)
LD01-785/10-12.5
FL-007686 / 0
- Laser Wavelength = 785 nm
- Tabs > 90% 780 – 790 nm
- Center Wavelength of 785 nm and GMBW of 10 nm
NF03-785E-25
FL-009358 / 0
- Laser Wavelength = 785 nm
- Typical Notch Bandwidth = 39 nm
- ODabs > 6 785 nm
1 of 1
| Topic | Description |
| Cleaning Optical Filters | Instructions for cleaning hard coated optical filters |
| Cube Assembly Instructions | PDF and video instruction for installing filters into popular filter cubes |
| 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 |
| Flatness of Dichroic Beamsplitters | Describes the impact of non-flat dichroic beamsplitters on microscope image fidelity |
| Measuring Light with Wavelengths & Wavenumbers | Compares units of wavelength to wavenumbers and provides formulas for calculating wavenumber shift |
| Measurement of Optical Filters | Describes the problems encountered when measuring optical filter spectra with commercially available spectrophotometers |
| Laser Damage Threshold | Provides information for calculating laser damage threshold for pulsed and continuous wave lasers |
| Tunable Bandpass Filters | Compares the spectral response of tunable bandpass filters to traditional filter spectra at non-normal angles of incidence |
| Link | Description |
| Request a Drawing | Looking for an optical filter drawing file for this product? Request one now! |
| Request Custom Optical Filters | Contact us today to start a conversation about custom optical filters. |
| Access Optical Filter Warranty | Find our warranty in our Terms & Conditions of Sale. |
| Semrock Optical Filters RoHS Certificate | RoHS, stands for Restriction of Hazardous Substances. The current RoHS Directive currently restricts the use of ten substances. |
| Semrock Optical Filters REACH Certificate | REACH is a regulation of the European Union, adopted to improve the protection of human health and the environment from the risks that can be posed by chemicals, while enhancing the competitiveness of the EU chemicals industry. |
| Download Optical Filters 101 Guide | Find an in-depth overview of optical filter principles, specifications, and applications. Request a digital copy of this guide now. |
| Request Clean Filter Checklist Poster | Looking to clean your optical filters? Need instructions? Request a printed copy of our Clean Filter Checklist Poster. |
Question 1: What is the NFD01-785-25x36 used for?
Answer: This notch laser dichroic beamsplitter is commonly used in Raman spectroscopy and other laser-based optical instruments that require laser separation from signal light.
Question 2: How do I know if this beamsplitter is right for my application?
Answer: This beamsplitter is typically a good choice when your system:
- Uses a 785 nm excitation laser
- Requires reflecting laser light at a 45° angle of incidence
- Needs high laser reflection efficiency
- Needs high transmission of Raman-shifted or fluorescence signal wavelengths
Verify your laser wavelength, optical geometry, and signal range before ordering.
Question 3: How efficiently does it reflect a 785 nm laser?
Answer: The beamsplitter provides greater than 98% reflection at 785 nm, making it highly effective at directing laser excitation light through the optical system.
Question 4: Why is 785 nm commonly used in Raman systems?
Answer: 785 nm lasers are frequently used because they can help reduce fluorescence interference while generating strong Raman signals in many sample types, making them a popular choice for Raman instrumentation. This beamsplitter is optimized specifically for that wavelength.
Question 5: How does this beamsplitter differ from a standard mirror?
Answer: Unlike a mirror, which reflects a broad range of wavelengths, this dichroic beamsplitter selectively reflects the 785 nm laser wavelength while transmitting the desired signal wavelengths. This selective behavior is critical in Raman spectroscopy applications.
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