Femtoline Thin Film Laser Polarizers (Round)

• Rs/Tp>99.5/95.0% for Standard Thin Film Laser Polarizers • Rs/Tp>99.5/99.0% for High Transmission Thin Film Laser Polarizers • Tp>98%, Tₛ<0.1% for Thin Film Polarizers with High Extinction Ratio • >200:1… Read more →

From $256 Configure & order →

Volume discount

5–9 units −10%
10+ units −15%

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Wavelength Any

Material UV FS · Diameter 25.4 mm · Thickness 3 mm · Polarization efficiency Tp>98%, Ts<0.1% · Extinction ratio > 1000:1

2 catalog variants — refine the spec to narrow it down.

SKU	Wavelength · Material · Diameter · Thickness · Polarization efficiency · Extinction ratio · Group
420-1244HE	515 nm·UV FS·25.4 mm·3 mm·Tp>98%, Ts<0.1%·> 1000:1·Thin Film Polarizers with High Extinction Ratio; UVFS; Tp>98%, Ts<0.1%	Out of stock Ships in: 62–65 calendar days $256
420-1266HE	780-820 nm·UV FS·25.4 mm·3 mm·Tp>98%, Ts<0.1%·> 1000:1·Thin Film Polarizers with High Extinction Ratio; UVFS; Tp>98%, Ts<0.1%	51 in stock Ships in: 2–5 calendar days $380

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Specifications

Material	UV FS
Surface quality	20-10 scratch & dig (MIL-PRF-13830B)
Transmitted wavefront distortion	λ / 10 @ 633 nm
Parallelism	< 30 arcsec
Clear aperture	> 85%
Angle of incidence	56°
Angle of Incidence Tolerance	±2°
Diameter tolerance	+0.0 / -0.12 mm
Thickness tolerance	±0.2 mm
Laser damage threshold	>100 mJ / cm², 50 fsec pulse, 800 nm typical, 50 Hz
Extinction ratio Tp / Ts	>200:1 (for standard series) >1000:1 (for HE series)

Classification

Line

femtoline

Description

Rs/Tp>99.5/95.0% for Standard Thin Film Laser Polarizers
Rs/Tp>99.5/99.0% for High Transmission Thin Film Laser Polarizers
Tp>98%, Tₛ<0.1% for Thin Film Polarizers with High Extinction Ratio
>200:1 exctinction ratio for standard and high transmission polarizers
>1000:1 exctinction ratio for polarizers with high extinction ratio (HE series)

Thin Film Polarizers seperate s- and p-polarization components. Thin Film Polarizers can be used as an alternative to Glan laser polarizing prisms or cube polarizing beamsplitters due to the high damage threshold reaching 100 mJ/cm2, at 800 nm, 50 fsec.

Thin Film Polarizers are used in high energy lasers. They can be used for Yb:KGW/KYW or Ti:Sapphire laser fundamental wavelength and its harmonics or intracavity Q-switch hold-off polarizers. The most efficient way to use thin film laser polarizers is at Brewster angle - 56° ±2 ° with minimal losses. Typical horizontal polarization ratio Tp/Ts is 200:1.