NENIR30B-C Dia. 25 mm Unmounted AR-Coated Absorptive Neutral Density Filter; 1050 - 1700nm; OD 3.0 AR 1050-1700nm
- Type
- Filter
- Subtype
- Neutral Density Filter
- Brand
- Thorlabs
Properties
- Shape
- Circular
- Diameter
- 25 mm
Material
- Name
- UVFS
- Dispersion Equation
- Sellmeier
- n (λ)
- 1.4440236216729967
- λ
- 1550 nm
- B1
- 0.6961663
- C1
- 0.004679148 μm2
- B2
- 0.4079426
- C2
- 0.013512063 μm2
- B3
- 0.8974794
- C3
- 97.93400254 μm2
NENIR30B-C Dia. 25 mm Unmounted AR-Coated Absorptive Neutral Density Filter; 1050 - 1700nm; OD 3.0 AR 1050-1700nm
The NENIR30B-C is a circular, unmounted neutral density filter, designed for use in the infrared spectrum, specifically between 1050 and 1700 nanometers. This filter, offered by Thorlabs, is part of their extensive catalog of optical elements, and it boasts an optical density (OD) of 3.0, providing significant light attenuation.
The filter is made from UVFS material, identified as MAL-1965, and has a diameter of 25 millimeters and a thickness of 1.97 millimeters. This makes it suitable for a wide range of optical applications where precise light control is required.
The NENIR30B-C features anti-reflection (AR) coatings on both the front and back surfaces, specifically designed for the 1050-1700nm wavelength range. This coating helps to minimize surface reflections, thereby improving transmission and reducing unwanted back-reflections.
The filter's shape is described as a thin lens, suggesting that it has been designed to minimize optical aberrations and distortions. This is particularly important in applications where high-precision optical alignment is required.
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