Optical Filters

Custom Size Fused Silica Round Optical Filter

Longpass filter for spectroscopy with 90% transmittance and OD>6 at 785 nm. Custom sizes available.

Core attributes

Material
Fused Silica
Shape
Round
Size
Custom
Thickness
Custom
Transmittance
90%
Filter Type
longpass
Cwl
785nm
Coating
hard-coat
Transmission bands
NIR (0.7-1.7 μm)
MOQ
1 Piece

Product facts

Key attributes

Material
Fused Silica
Shape
Round
Size
Custom
Thickness
Custom
Transmittance
90%
Filter Type
longpass
Cwl
785nm
Coating
hard-coat
Transmission bands
NIR (0.7-1.7 μm)
MOQ
1 Piece

Product description

This longpass filter is designed for applications in spectroscopy, particularly effective for Raman spectroscopy. With a center wavelength of 785 nm and a high transmittance of 90%, it efficiently allows desired wavelengths to pass while blocking unwanted light. The filter’s hard coating ensures durability, making it suitable for various environments. Custom sizes are available to fit specific equipment, ensuring optimal performance across different applications.

Key Features

  • High transmittance of 90% for optimal signal clarity.
  • Effective blocking with OD>6 at 785 nm to minimize background noise.
  • Durable hard-coat design for enhanced environmental resistance.
  • Custom sizes available, including D8 to D50, to fit specific applications.
  • Minimum order quantity of just 1 piece for flexibility in sourcing.

Applications

Spectroscopy

Specification Summary

ItemValue
MaterialFused Silica
ShapeRound
SizeCustom
ThicknessCustom
Transmittance90%
Filter Typelongpass
Cwl785nm
Coatinghard-coat
Transmission bandsNIR (0.7-1.7 μm)
MOQ1 Piece

Full Specifications

ParameterValue
Transmittance90%; T>90%; >90%
Customized SupportOEM, ODM
Warranty1 Year
SubstrateFused Silica or Customer Design
Wavelength785nm
BlockingOD>6@785nm
Slope95%~OD6<5nm
Size(Mm)D8,D10,D12,D12.5,D12.7,D15,D25,D25.4 or D50,Customer Design
Moq1 Piece

FAQ

Can I get custom sizes?

Yes, custom sizes are available, including D8, D10, D12, and more.

What is the minimum order quantity?

The minimum order quantity is 1 piece.

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