214nm narrowband filter with high transmittance and low loss, essential optical component for precise ultraviolet detection.

The 214nm narrowband filter is a bandpass filter used in precision ultraviolet optical systems, with its core performance as follows:

• Center Wavelength: 214nm, deviation ±2nm

• Full Width at Half Maximum (Bandwidth): Typically 10nm, some models can achieve 8nm or narrower

• Transmittance: Typical value ≥10%, some high-end models can reach over 85%

• Blocking Range: 200–1100nm, some products can extend to 2000nm

• Blocking Depth: OD4–OD5 (i.e., transmittance ≤0.01% or even 0.001%)

• Substrate Material: Fused silica or UV-grade optical glass, featuring high UV transmittance and low autofluorescence

• Coating Technology: Utilizes ion-assisted deposition (IAD) or hard coating technology, with dense and durable film layers, resistant to high temperature and humidity, and long service life (guaranteed for over 5 years)

• Size Specifications: Common diameters include 10mm, 12.5mm, and 25.4mm, thickness 1–6mm, customizable up to 50mm

• Surface Quality: Complies with MIL-STD 60-40 or higher standards, with well-controlled scratches/digs

• Environmental Adaptability: Operating temperature range typically -15°C to +65°C, suitable for laboratory and industrial environments

Application Fields

• Life Sciences: Nucleic acid and protein UV detection, fluorescence microscopy

• Environmental Monitoring: Ozone analysis, SO₂ detection, UV spectrometers

• Industrial and Scientific Research: UV laser systems, semiconductor lithography, spectrometer calibration, optical sensors