800nm Short Wave Pass Filter For Laser-based Applications

800nm short wave pass filter is a filter that allows light with wavelengths shorter than 800 nanometers to pass through, while blocking light with longer wavelengths. They are commonly used in applications such as fluorescence microscopy, where they help to remove unwanted background noise and increase the signal-to-noise ratio. They are also used in photography and videography to enhance contrast and reduce haze.

 

Our filter is constructed with a substrate made of high-quality glass or quartz and a thin layer of material that selectively absorbs longer wavelengths of light. It has high transmission, sharp cutoff, low reflection, high durability, consistent performance, and compatibility with different substrates. It is a reliable and effective solution for any application that requires the precise filtering of light in the 800nm wavelength range.

 

Features

- Short pass for 800nm

- High attenuation

- Low insertion loss

- Flat frequency response

- Low noise

- Good impedance matching

 

Parameters

Product Name	800nm short pass filter
Central Wavelength (CWL)	800nm
Diameter	φ25mm or custom
Thickness	1mm or custom
Transmission Rate	>90% of the common
Blocking Depth	OD6 or custom
Blocking Range	800-1200nm
Coating	Hard coating
Tolerance	±0.01-0.1mm
Substrates	B270 or custom

 

Spectrum transmission curve

 

Applications

The 800nm short pass filter is a versatile optical device that has a wide range of applications in scientific, industrial, and commercial settings. Here are the examples:

- Fluorescence microscopy

- Photography and videography

- Laser-based applications

- Spectroscopy

- Optical communications

 

What is the whole process of designing and producing a short pass filter?

Designing and producing a short pass filter typically involves the following steps:

 

- Define the specifications: The first step is to define the specifications of the filter, including the cut-off wavelength, transmission, and optical density requirements.

 

- Choose the substrate material: The substrate material is the base material on which the filter will be deposited. The choice of substrate material depends on the specific application and the wavelength range of interest.

 

- Determine the deposition method: The deposition method is the process by which the filter coatings are deposited onto the substrate material. Common methods include vacuum deposition, sputtering, and chemical vapor deposition.

 

- Design the coating stack: The coating stack refers to the specific sequence and thickness of the layers that make up the filter coating. The design of the coating stack is critical to achieving the desired transmission and optical density characteristics.

 

- Test and optimize the design: Once the coating stack has been designed, the 800nm short wave pass filter is produced and tested to ensure that it meets the required specifications. If necessary, the design may be optimized through iterative testing and refinement.

 

- Quality control: The final step is to perform quality control testing to ensure that the filter meets the required specifications and is free from defects.

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