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NENIR230B 2 in x 2 in Unmounted NIR Absorptive ND Filter; OD 3.0

NENIR230B 2 in x 2 in Unmounted NIR Absorptive ND Filter; OD 3.0

Type
Filter
Subtype
Neutral Density Filter
Brand
Thorlabs
Product webpage
Thorlabs products in the 3DOptix catalog

Properties

Shape
Rectangular

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

NENIR230B 2 in x 2 in Unmounted NIR Absorptive ND Filter; OD 3.0

The NENIR230B is a 2 in x 2 in Unmounted Neutral Density (ND) Filter, specifically designed for Near-Infrared (NIR) applications with a center wavelength of 1550 nm. This filter is sourced from Thorlabs, a reputable vendor known for its high-quality optical components.

The filter is made of UVFS material, identified by the Mal-1965 code, and features a thin lens shape. It has a uniform coating, denoted as 'tho nenir30b' on both the front and back surfaces, which provides a high level of neutral density, corresponding to an Optical Density (OD) of 3.0. This means that the filter reduces the intensity of the incident light by a factor of 1000.

The filter's geometry includes a width and height of 50.8 mm (2 in) and a thickness of 2 mm. The unmounted design offers flexibility for integration into various optical systems. The item data indicates that this filter is currently in stock and available for immediate purchase.

For more detailed information, including technical specifications and purchasing options, please refer to the vendor's website using the provided weblink: https://www.thorlabs.com/thorproduct.cfm?partnumber=NENIR230B

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