UVFS Narrow Bandpass Filter, 25.4 × 12.7 mm, 1025 nm, OD>4.0

Overview

Bandpass filters are precision optical components designed to selectively transmit light within a specific wavelength band while effectively blocking all other wavelengths. Built with interference thin-film technology, they deliver high in-band transmission and strict spectral selectivity for spectroscopy, laser systems, and imaging. Narrow bandpass filters offer passbands typically in the 1–10 nm range, making them ideal where precise center-wavelength (CWL) and bandwidth (FWHM) control is required — laser line selection, fluorescence excitation, and laser spectroscopy.

Applications

• Femtosecond / picosecond laser systems
• Fluorescence microscopy (excitation selection)
• Laser spectroscopy & spectral analysis
• Quantum optics & precision imaging

Construction & Performance

• Substrate: UVFS Corning 7980 0F
• Coating: IAD Hard Coating
• Dimensions: 25.4 × 12.7 mm
• Thickness: 6.0 mm
• Start wavelength: 1025 nm
• OD: >4.0
• Transmission: 70%
• Passband: 1020–1030 nm
• Blocking range: 200–1020 & 1030–1200 nm
• Coating spec: HR@200-1020&1030-1200 nm, T=70%@1025 nm
• Surface flatness: λ/10 @ 633 nm
• Surface quality: 20-10 S-D
• Diameter tolerance: +0.0/-0.1 mm
• Thickness tolerance: ±0.2 mm

Storage & Handling

For optimal performance, store and use at 25 °C and 40–60% relative humidity. If the surface becomes contaminated, clean gently with ≥99% alcohol and lint-free lens tissue; never use coarse cloth, water, or abrasive cleaners, which may damage the coating.