Nanoparticle Thin Film Linear Polarizers NFLP25-NIR

Nanoparticle Thin Film Linear Polarizers — Model NFLP25-NIR

Silver-nanoparticle thin-film linear polarizer, operating wavelength 1000 nm-3000 nm, extinction ratio >1000:1@1000 nm-3000 nm; >10000:1@1200 nm-3000 nm, thickness 0.25 mm.

Overview

LBTEK's nanoparticle thin-film linear polarizers are manufactured by embedding elongated silver nanoparticles in soda-lime glass. Compared to polymer polarizers, they offer higher extinction ratio, higher damage threshold, and a broader operating temperature range. LBTEK offers seven types covering operating wavelengths 365 nm-395 nm and 480 nm-5000 nm, each with characteristic extinction ratios. Good performance is maintained within ±20° angle of incidence.

Key Features

• Extinction ratio: >1000:1@1000 nm-3000 nm; >10000:1@1200 nm-3000 nm
• Operating wavelength: 1000 nm-3000 nm
• Damage threshold: CW linearly polarized, perpendicular to transmission axis: 10 W/cm²; CW linearly polarized, parallel to transmission axis: 25 W/cm²
• Angle of incidence: 0°±20°
• Operating temperature: -50°C ~ 400°C
• Surface finish: 60/40

Applications

• Polarization control in scientific and industrial optical systems
• High-contrast imaging and spectroscopy
• Laser polarization filtering
• Applications requiring elevated operating temperature or laser damage threshold
• UV-resistant and chemically durable polarization filtering