190/20nm VUV Deep Narrowband UV Transmitting Filter Overview
190nm belongs to the deep ultraviolet band, which is part of the ultraviolet light and close to the vacuum ultraviolet region (VUV). Coligh manufactures 190/20nm deep ultraviolet bandpass filters for the 190nm band. It has a transmittance of nearly 14% at 190nm and can maintain a good cutoff depth up to 1050nm. It is an excellent choice for deep ultraviolet band filters.
The spectrum Curve Of 190/20nm VUV Deep Narrowband UV Transmitting Filter
190/20nm VUV Deep Narrowband UV Transmitting Filter Technical Specifcation
- Centerwavelength: 190+/-3nm
- FWHM: 20+/-3nm
- Transmission Peak >13%
- Blocking depth: 180-1200nm@OD3 average
- Standard Size in stock: Dia25.4*6mm
- We have various standard wavelength and size of UV bandpass filters in stock. Contact our sales for more detail.
Other Wavelength Of Narrowband UV Transmitting Filters In Stock:
- 200/20nm
- 214/10nm
- 216/10nm
- 220/10nm
- 220/15nm
- 220/20nm
- 220/15nm
- 220/20nm
- 223/10nm
- 225/10nm
- 228/10nm
- 230/10nm
- 240/10nm
- 246/10nm
- 250/10nm
- 254/10nm
- ….
190/20nm VUV Deep UV Transmitting Filter Applications
- Deep UV Lithography
DUV lithography is used in semiconductor chip manufacturing to achieve higher-resolution lithography processes. 190nm/20nm VUV bandpass filters stabilize UV light sources near ArF wavelengths, ensuring wavelength purity during lithography.
- Gas Analysis
Some organic compounds and trace gases have absorption peaks in the 180-200nm range. A 190/20nm bandpass filter allows only wavelengths in the 190nm range to pass through, reducing background interference.
- Biological Research
DNA and RNA have strong absorption peaks in the deep UV region. Using a 190nm/20nm bandpass filter can eliminate interference from stray light and facilitate the study of molecular interactions.
