Features

• Transmits P-Polarized Light and Reflects S-Polarized Light
• Unmounted 1" Polarizing Beamsplitter Cube
• Large Field of View
• High Extinction Ratio
  • T_p:T_s > 1 000:1 (AOI: 0° - 5°)
  • T_p:T_s > 100:1 (AOI: 0° - 25°)

Thorlabs' Wire Grid Polarizing Beamsplitter Cube consists of an array of parallel metallic wires sandwiched between two N-BK7 prisms. Wire grid polarizers transmit radiation with an electric field vector perpendicular to the wire and reflect radiation with the electric field vector parallel to the wire. This cube separates the s- and p-polarized components by reflecting the s-polarized component at the wire grid, while allowing the p-polarized component to pass. Due to surface reflections, the reflected beam contains both polarizations.

This type of beamsplitter cube has a larger Angle of Incidence (AOI) than traditional broadband polarizing beamsplitter cubes. For the highest polarization extinction ratio, use the transmitted beam, which offers an extinction ratio of T_p:T_s > 1 000:1 for an AOI from 0° to 5°. For higher AOI (5° to 25°), this cube can maintain an extinction ratio of T_p:T_s > 100:1.

The wire grid is sandwiched between the hypotenuses of the two prisms that make up the cube. Then, optical cement is used to bind the two prism halves together (refer to the diagram above). The engraved dot on the top of the cube indicates the prism with the wire grid polarizer. Light can be input into any of the polished faces to separate the s- and p-polarizations. One possible orientation is engraved on the top of the cube. Please refer to the BS Cube Mounting tab above for information on mounting options and compatibility.

This beamsplitter cube is AR coated for 400 - 700 nm (R_avg < 0.5% @ 0° AOI). Custom beamsplitter cubes can be ordered by contacting Tech Support. For high power applications, we also offer high-power polarizing beamsplitting cubes that have damage thresholds greater than 10 J/cm². Mounted wire grid beamsplitting cubes are available. We also offer polarizing beamsplitter cubes at laser line wavelengths, which have a high extinction ratio of >3 000:1 (T_p:T_s).

Beamsplitter Selection Guide

Thorlabs' portfolio contains many different kinds of beamsplitters, which can split beams by intensity or by polarization. We offer plate and cube beamsplitters, though other form factors exist, including pellicle and birefringent crystal. For an overview of the different types and a comparison of their features and applications, please see our overview. Many of our beamsplitters come in premounted or unmounted variants. Below is a complete listing of our beamsplitter offerings. To explore the available types, wavelength ranges, splitting/extinction ratios, transmission, and available sizes for each beamsplitter category, click More [+] in the appropriate row below.

Plate Beamsplitters

Non-Polarizing Plate Beamsplitters

Type	Wavelength Range	Splitting Ratio (R:T)	Typical Reflectancea (Click for Plot)	Typical Transmissiona (Click for Plot)	Backside AR Coating	Available Wedged	Available Sizes (Unmounted)
Economy	450 - 650 nm	30:70			No	No	Ø1" and Ø2"
		50:50
UV Fused Silica for UV	250 - 450 nm	50:50			Yes	Yesb	Ø1/2", Ø1", 25 x 36 mm, and Ø2"
UV Fused Silica for UV to NIR	350 - 1100 nm	50:50			Yes	Yesb	Ø1/2", Ø1", 25 x 36 mm, and Ø2"
UV Fused Silica for Visible	400 - 700 nm	10:90			Yes	Yesb	Ø1/2", Ø1", 25 x 36 mm, and Ø2"
		30:70
		50:50
		70:30
		90:10
UV Fused Silica for Visible to IR	600 - 1700 nm	50:50			Yes	Yesb	Ø1/2", Ø1", 25 x 36 mm, and Ø2"
UV Fused Silica for NIR	700 - 1100 nm	10:90			Yes	Yesb	Ø1/2", Ø1", 25 x 36 mm, and Ø2"
		30:70
		50:50
		70:30
		90:10
UV Fused Silica for NIR	1.2 - 1.6 µm	10:90			Yes	Yesb	Ø1/2", Ø1", 25 x 36 mm, and Ø2"
		30:70
		50:50
		70:30
		90:10
IR Fused Silica for IR	0.9 - 2.6 µm	50:50			Yes	Yesb	Ø1/2", Ø1", 25 x 36 mm, and Ø2"
CaF2 for IR	1.0 - 6.0 µm	50:50			No	Yesb	Ø1/2", Ø1", 25 x 36 mm, and Ø2"
	2.0 - 8.0 µm						Ø1/2", Ø1", and Ø2"
ZnSe for IR	1.0 - 12.0 µm	50:50			Yes	Yesb	Ø1"
	7.0 - 14.0 µm						Ø1/2", Ø1", and Ø2"
Laser Line for Nd: YAG	532 nm	50:50			Yes	Yesb	Ø1/2", Ø1", 25 x 36 mm, and Ø2"
	1064 nm
Polka Dot	250 nm - 2.0 µm	50:50	0° and 8° 45°		No	No	Ø1", 1" x 1", and Ø2"
	350 nm - 2.0 µm		0° and 8° 45°		No	No	Ø1", 1" x 1", and Ø2"
	180 nm - 8.0 µm		0° and 12° 45°		No	No	Ø1" and Ø2"
	2.0 - 11.0 µm		0° and 10° 45°		No	No	Ø1"
Ultrafast with Controlled GDDc	600 - 1500 nm	20:80			Yes	No	Ø1"
		50:50
		80:20
		90:10
	1000 - 2000 nm	50:50

Polarizing Plate Beamsplitters

Type	Center Wavelength	Extinction Ratio (TP:TS)	Typical Transmissiona (Click for Plot)	Backside AR Coated	Available Wedged	Available Sizes (Unmounted)
Standard	405 nm	>10 000:1		No	Yesb	Ø1" and 25 mm x 36 mm
	532 nm
	633 nm
	780 nm
	808 nm
	1030 nm
	1064 nm
	1310 nm
	1550 nm

• 45° AOI Unless Otherwise Noted
• 30 arcmin Wedge on Round Optics Only
• Designed for use with P-polarized light.

Cube Beamsplitters

Non-Polarizing Cube Beamsplitters

Type	Wavelength Range	Splitting Ratio (R:T)	Typical Transmission (Click for Plot)	AR Coated Faces (Click for Plot)	Cemented	Available Cube Side Length
Visible: Unmounted 16 mm Cage Cube 30 mm Cage Cube	400 - 700 nm	10:90			Yes	Unmounted: 5 mm, 10 mm, 1/2", 20 mm, 1"
		30:70			Yes	Unmounted: 5 mm, 10 mm, 1/2", 20 mm, 1"
		50:50			Yes	Unmounted: 5 mm, 10 mm, 1/2", 20 mm, 1", and 2" Mounted: 20 mm in a 16 mm Cage Cube, 1" in a 30 mm Cage Cube
		70:30			Yes	Unmounted: 5 mm, 10 mm, 1/2", 20 mm, 1"
		90:10			Yes	Unmounted: 5 mm, 10 mm, 1/2", 20 mm, 1"
NIR: Unmounted 16 mm Cage Cube 30 mm Cage Cube	700 - 1100 nm	10:90			Yes	Unmounted: 5 mm, 10 mm, 1/2", 20 mm
		30:70			Yes	Unmounted: 5 mm, 10 mm, 1/2", 20 mm, 1"
		50:50			Yes	Unmounted: 5 mm, 10 mm, 1/2", 20 mm, 1", and 2" Mounted: 20 mm in a 16 mm Cage Cube, 1" in a 30 mm Cage Cube
		70:30			Yes	Unmounted: 5 mm, 10 mm, 1/2", 20 mm, 1"
		90:10			Yes	Unmounted: 5 mm, 10 mm, 1/2", 20 mm, 1"
IR: Unmounted 16 mm Cage Cube 30 mm Cage Cube	1100 - 1600 nm	10:90			Yes	Unmounted: 5 mm, 10 mm, 1/2", 20 mm
		30:70			Yes	Unmounted: 5 mm, 10 mm, 1/2", 20 mm
		50:50			Yes	Unmounted: 5 mm, 10 mm, 1/2", 20 mm, 1", and 2" Mounted: 20 mm in a 16 mm Cage Cube, 1" in a 30 mm Cage Cube
		70:30			Yes	Unmounted: 5 mm, 10 mm, 1/2", 20 mm, 1"
		90:10			Yes	Unmounted: 5 mm, 10 mm, 1/2", 20 mm,1"

Polarizing Cube Beamsplitters

Type	Wavelength Range	Extinction Ratio (TP:TS)	Typical Transmission	AR Coated Faces	Cemented	Available Cube Side Length
Standard: Unmounted 16 mm Cage Cube 30 mm Cage Cube	420 - 680 nm	>1 000:1		Yes	Yes	Unmounted: 5 mm, 10 mm, 1/2", 20 mm, 1", and 2" Mounted: 20 mm in a 16 mm Cage Cube, 1" in a 30 mm Cage Cube
	620 - 1000 nm
	900 - 1300 nm
	1200 - 1600 nm
Wire Grid: Unmounted 30 mm Cage Cube	400 - 700 nm	>1 000:1 (AOI: 0° - 5°) >100:1 (AOI: 0° - 25°)	P-Pol. S-Pol.	Yes	Yes	Unmounted: 1" Mounted: 20 mm in a 16 mm Cage Cube, 1" in a 30 mm Cage Cube
High-Power Laser Line: Unmounted 30 mm Cage Cube	355 nm	>2 000:1			No	Unmounted: 1/2" and 1" Mounted: 1" in a 30 mm Cage Cube
	405 nm
	532 nm
	633 nm
	780 - 808 nm
	1064 nm
Laser Line: Unmounted 30 mm Cage Cube	532 nm	>3 000:1		Yes	Yes	Unmounted: 10 mm, 1/2", and 1" Mounted: 1" in a 30 mm Cage Cube
	633 nm
	780 nm
	980 nm
	1064 nm
	1550 nm
Laser-Line Variable	532 nm	Not Specified	No Graph Available	Yes	Yes	Assembly Mounted in a 30 mm Cage Cube
	633 nm
	780 nm
	1064 nm
	1550 nm
Broadband Variable	420 - 680 nm	Not Specified	No Graph Available	Yes	Yes	Assembly Mounted in a 30 mm Cage Cube
	690 - 1000 nm
	900 - 1200 nm
	1200 - 1600 nm
Circular Polarizer/Beamsplitter	532 nm	Not Specified	No Graph Available	Yes	Yes	Assembly Mounted in a 30 mm Cage Cube
	633 nm
	780 nm
	1064 nm
	1550 nm

Pellicle Beamsplitters

Non-Polarizing Pellicle Beamsplitters

Type	Wavelength Range	Splitting Ratio (R:T)	Typical Reflectancea (Click for Plot)	Typical Transmissiona (Click for Plot)	Available Sizes
Pellicle: Unmounted 30 mm Cage Cube	400 - 2400 nm	8:92			Unmounted: Ø1/2", Ø1", and Ø2" Mounted: Ø1" in a 30 mm Cage Cube
	300 - 400 nm	45:55			Unmounted: Ø1" and Ø2" Mounted: Ø1" in a 30 mm Cage Cube
	400 - 700 nm	45:55			Unmounted: Ø1/2", Ø1", and Ø2" Mounted: Ø1" in a 30 mm Cage Cube
	635 nm	33:67			Unmounted: Ø1/2", Ø1", Ø2" Mounted: Ø1" in a 30 mm Cage Cube
	635 nm	50:50			Unmounted: Ø1/2", Ø1", and Ø2" Mounted: Ø1" in a 30 mm Cage Cube
	700 - 900 nm	45:55			Unmounted: Ø1/2", Ø1", and Ø2" Mounted: Ø1" in a 30 mm Cage Cube
	1.0 - 2.0 µm	45:55			Unmounted: Ø1/2", Ø1", and Ø2" Mounted: Ø1" in a 30 mm Cage Cube
	3.0 - 5.0 µm	45:55			Unmounted: Ø1/2" and Ø1" Mounted: Ø1" in a 30 mm Cage Cube

Crystal Beamsplitters

Polarizing Crystal Beamsplitters

Type	Wavelength Range	Extinction Ratio (TP:TS)	Typical Beam Separation Angle (Click for Representative Diagram)	Typcial Substrate Transmission (Click for Plot)	Typical Coating Reflectance (Click for Plot)	Cemented	Available Sizes
Calcite Beam Displacers	350 nm - 2.3 µm	Not Specified	Parallel with 2.7 mm Spacing at 1500 nm		Uncoated	No	10 mma (Clear Aperture, Square)
			Parallel with 4.0 mm Spacing at 1500 nm				10 mma (Clear Aperture, Square)
Yttrium Orthovanadate Beam Displacer	488 nm - 3.4 µm	Not Specified	Parallel with 1.2 mm Spacing at 2000 nm		Uncoated	No	>3 mm x 5 mmb (Clear Aperture, Ellipse)
	2.0 µm
Wollaston Prisms	400 nm - 2.0 µm	>10 000:1	1° at 633 nm		Uncoated	Yes	Ø10 mma (Clear Aperture)
	200 nm - 6.0 µm	>10 000:1	1° 20' at 633 nm		Uncoated		Ø10 mma (Clear Aperture)
	190 nm - 3.5 µm	>100 000:1	20° at 250 nm		Protective MgF2 (No Data)		Ø10 mma (Clear Aperture)
	350 nm - 2.3 µm	>100 000:1	20° at 633 nm		Uncoated		Ø10 mmb (Clear Aperture)
							Ø10 mma (Clear Aperture)
							Ø10 mma (Clear Aperture)
	900 nm - 3.4 µm	>100 000:1	20° at 633 nm		Uncoated		Ø10 mma (Clear Aperture)
Rochon Prisms	200 nm - 6.0 µm	>10 000:1	1.5° at 4 µm		Uncoated	Yes	10 mm x 10 mma (Min Clear Aperture)
	488 nm - 3.4 µm	>100 000:1	10.6° at 2 µm

• Mounted in a protective box, unthreaded ring, or cylinder.
• Available unmounted or mounted in a protective box or unthreaded cylinder.

Other

Other Beamsplitters

Type	Wavelength Range	Splitting Ratio	Substrate Transmission	Typical Reflectance	Available Sizes (Unmounted)
Wedged Plate Beamsplitter	185 nm - 2.1 µm	-		-	2" x 1" (L x H) 8.0 mm (Middle Thickness) Wedge Angle: 5°
Brewster Windows	185 nm - 2.1 µm	-			6.0 mm, 8.0 mm, 13.0 mm, 16.0 mm, 20.0 mm, and 25.0 mm (Minor Diameters)

Polarizer Selection Guide

Thorlabs offers a diverse range of polarizers, including wire grid, film, calcite, alpha-BBO, rutile, and beamsplitting polarizers. Collectively, our line of wire grid polarizers offers coverage from the visible range to the beginning of the Far-IR range. Our nanoparticle linear film polarizers provide extinction ratios as high as 100 000:1. Alternatively, our other film polarizers offer an affordable solution for polarizing light from the visible to the Near-IR. Next, our beamsplitting polarizers allow for use of the reflected beam, as well as the more completely polarized transmitted beam. Finally, our alpha-BBO (UV), calcite (visible to Near-IR), rutile (Near-IR to Mid-IR), and yttrium orthovanadate (YVO₄) (Near-IR to Mid-IR) polarizers each offer an exceptional extinction ratio of 100 000:1 within their respective wavelength ranges. 

To explore the available types, wavelength ranges, extinction ratios, transmission, and available sizes for each polarizer category, click More [+] in the appropriate row below.

Wire Grid Polarizers

Polarizer Type	Wavelength Range	Extinction Ratio	Transmissiona	Available Sizes
Wire Grid Polarizers on Glass Substrates	420 nm - 700 nm	>800:1 (Avg. Over Wavelength Range)		12.5 mm x 12.5 mm, Ø25.0 mmb, 25.0 mm x 25.0 mm, and 50.0 mm x 50.0 mm
	250 nm - 4 µm	>10:1 from 250 nm - 4 µm >100:1 from 300 nm - 4 µm >1000:1 from 600 nm - 4 µm >10 000:1 from 2.25 µm - 4 µm		12.5 mm x 12.5 mm, Ø25.0 mmb, 25.0 mm x 25.0 mm, and 50.0 mm x 50.0 mm
Wire Grid Polarizing Beamsplitter Cubes (Unmounted or 30 mm Cage Cube)	400 nm - 700 nm	>1 000:1 (AOI: 0° - 5°) >100:1 (AOI: 0° - 25°)	P-Pol. S-Pol.	1"f
Holographic Wire Grid Polarizers	2 µm - 12 µm	150:1 at 3 µm 300:1 at 10 µm		Ø25.0 mmb and Ø50.0 mmb
	2 µm - 9 µm	150:1 at 3 µm 300:1 at 8 µm
	2 µm - 30 µm	150:1 at 3 µm 300:1 at 15 µm
	2 µm - 18 µm	150:1 at 3 µm 300:1 at 10 µm
MIR Wire Grid Polarizers on Silicon Substrates	3 µm - 5 µm	>1000:1		12.5 mm x 12.5 mmb, Ø25.0 mmb, 25.0 mm x 25.0 mmb, and 50.0 mm x 50.0 mmb
	7 µm - 15 µm	>10,000:1		12.5 mm x 12.5 mmb, Ø25.0 mmb, 25.0 mm x 25.0 mmb, and 50.0 mm x 50.0 mmb

Film Polarizers

Polarizer Type	Wavelength Range	Extinction Ratio	Transmissiona	Available Sizes
Nanoparticle Linear Film Polarizers	365 nm - 395 nm	>1000:1 from 365 nm - 395 nm >10 000:1 from 369 nm - 390 nm >100 000:1 from 372 nm - 388 nm		Ø12.5 mmc and Ø25.0 mmd
	480 nm - 550 nm	>10 000:1 from 480 nm - 550 nm		Ø12.5 mmc and Ø25.0 mmd
	510 nm - 800 nm	>1000:1 from 510 nm - 800 nm >10 000:1 from 520 - 740 nm >100 000:1 from 530 - 640 nm		Ø12.5 mmc and Ø25.0 mmd
	550 nm - 1500 nm	>10 000:1 from 550 nm - 1500 nm >100 000:1 from 600 nm - 1200 nm		Ø12.5 mmc and Ø25.0 mmd
	650 nm - 1100 nm	>200:1 from 650 nm - 695 nm >1000:1 from 695 nm - 1100 nm		Ø1/2"c and Ø1"d
	650 nm - 2000 nm	>1000:1 from 650 nm - 2000 nm >10 000:1 from 750 nm - 1800 nm >100 000:1 from 850 nm - 1600 nm		Ø12.5 mmc and Ø25.0 mmd
	1 µm - 3 µm	>1000:1 from 1 µm - 3 µm >10,000:1 from 1.2 µm - 3 µm		Ø12.5 mmc and Ø25.0 mmd
	1.1 µm - 1.8 µm	>1000:1 from 1.1 µm - 1.8 µm		Ø1/2"c and Ø1"d
	1.5 µm - 5 µm	>1000:1 from 1.5 µm - 5 µm >10 000:1 from 2 µm - 4.5 µm		Ø12.5 mmc and Ø25.0 mmd
Economy Film Polarizers	400 nm - 700 nm	>100:1 from 400 nm - 500 nm >1000:1 from 500 nm - 700 nm >5000:1 from 530 nm - 690 nm		2" x 2"
	600 nm - 1100 nm	>400:1 from 600 nm - 1100 nm >1000:1 from 600 nm - 940 nm		2" x 2"
Economy Laminated Film Polarizers	400 nm - 700 nm	>100:1 from 400 nm - 500 nm >1000:1 from 500 nm - 700 nm >5000:1 from 530 nm - 690 nm		Ø1/2", Ø1", and Ø2"
	600 nm - 1100 nm	>1000:1 from 600 nm - 950 nm >400:1 from 600 nm - 1100 nm		Ø1/2", Ø1", and Ø2"
	1050 nm - 1700 nm	>1000:1 from 1050 - 1400 nm >2000:1 from 1400 - 1700 nm		Ø1/2", Ø1", and Ø2"

Beamsplitting Polarizers

Polarizer Type	Wavelength Range	Extinction Ratio	Transmissiona	Available Sizes
Polarizing Plate Beamsplitters	405 nm	>10 000:1		Ø1" and 25 mm x 36 mm
	532 nm
	633 nm
	780 nm
	808 nm
	1030 nm
	1064 nm
	1310 nm
	1550 nm
Polarizing Bandpass Filters	355 nm +6 nm / -9 nm	1 000 000:1		25.2 mm x 35.6 mm
Broadband Polarizing Beamsplitter Cubes (Unmounted, 16 mm Cage Cube, or 30 mm Cage Cube)	420 nm - 680 nm	1000:1e		5 mm, 10 mm, 1/2", 20 mmf, 1"f, and 2"
	620 nm - 1000 nm
	900 nm - 1300 nm
	1200 nm - 1600 nm
Wire Grid Polarizing Beamsplitter Cubes (Unmounted or 30 mm Cage Cube)	400 nm - 700 nm	>1 000:1 (AOI: 0° - 5°) >100:1 (AOI: 0° - 25°)	P-Pol. S-Pol.	1"f
Laser-Line Polarizing Beamsplitter Cubes (Unmounted or 30 mm Cage Cube)	532 nm	3000:1		10 mm, 1/2", 1"f
	633 nm
	780 nm
	980 nm			1"f
	1064 nm			10 mm, 1/2", 1"f
	1550 nm
High-Power Laser-Line Polarizing Beamsplitter Cubes (Unmounted or 30 mm Cage Cube)	355 nm	2000:1		1/2" and 1"f
	405 nm
	532 nm
	633 nm
	780 - 808 nm
	1064 nm
Low-GDD, High-Power, Broadband Polarizing Beamsplitter	700 nm - 1100 nm	1000:1		12.7 mm (Input/Output Face, Square)
Calcite Beam Displacers	350 nmg - 2.3 µm (Uncoated)	-		10 mmb (Clear Aperture, Square)
Yttrium Orthovanadate (YVO4) Beam Displacers	488 nm - 3.4 µm (Uncoated)	-		>3 mm x 5 mm Ellipseh (Clear Aperture)
	2000 nm (V Coated)

alpha-BBO Polarizers

Polarizer Type	Wavelength Range	Extinction Ratio	Transmissiona	Available Sizes
alpha-BBO Glan-Laser Polarizers	210 nm - 450 nm	100 000:1		5 mmb and 10 mmb (Clear Aperture, Square)
	220 nm - 370 nm
	405 nm
Wollaston Prism Polarizers	190 nm - 3500 nm			Ø10 mmb (Clear Aperture)

Calcite Polarizers

Polarizer Type	Wavelength Range	Extinction Ratio	Transmissiona,h	Available Sizes
Glan-Laser Calcite Polarizers	350 nmg - 2.3 µm (Uncoated)	100 000:1		5 mmb, 10 mmj, and 15 mmb (Clear Aperture, Square)
	350 nmg - 700 nm (A Coated)
	650 nm - 1050 nm (B Coated)
	1050 nm - 1700 nm (C Coated)
	1064 nm (V Coated)j
Glan-Taylor Calcite Polarizers	350 nmg - 2.3 µm (Uncoated)			5 mmb, 10 mmb, and 15 mmb (Clear Aperture, Square)
	350 nmg - 700 nm (A Coated)
	650 nm - 1050 nm (B Coated)
	1050 nm - 1700 nm (C Coated)
Glan-Thompson Calcite Polarizers (Unmounted or Mounted)	350 nmg - 2.3 µm (Uncoated)			5 mmk and 10 mmk (Clear Aperture, Square)
	350 nmg - 700 nm (A Coated)
	650 nm - 1050 nm (B Coated)
Double Glan-Taylor Calcite Polarizers	350 nmg - 2.3 µm (Uncoated)			9 mmb (Clear Aperture, Square)
Beam Displacers	350 nmg - 2.3 µm (Uncoated)			10 mmb (Clear Aperture, Square)
Wollaston Prism Polarizers	350 nmg - 2.3 µm (Uncoated)			Ø10 mmk (Clear Aperture)
	350 nmg - 700 nm (A Coated)
	650 nm - 1050 nm (B Coated)

Quartz Polarizers

Polarizer Type	Wavelength Range	Extinction Ratio	Transmissiona	Available Sizes
Wollaston Prism Polarizers	400 nm - 2000 nm	10 000:1		Ø10 mmb (Clear Aperture)

Magnesium Fluoride Polarizers

Polarizer Type	Wavelength Range	Extinction Ratio	Transmissiona	Available Sizes
Wollaston Prism Polarizers	200 nm - 6.0 µm	10 000:1		Ø10 mmb (Clear Aperture)
Rochon Prism Polarizers				10 mm x 10 mm (Clear Aperture)

Yttrium Orthovanadate (YVO4) Polarizers

Polarizer Type	Wavelength Range	Extinction Ratio	Transmissiona	Available Sizes
Beam Displacers	488 nm - 3.4 µm (Uncoated) 2000 nm (V Coated)	100 000:1		>3 mm x 5 mm (Clear Aperture, Ellipse)
Wollaston Prism Polarizers	900 nm - 3.24 µm			Ø10 mmb (Clear Aperture)
Rochon Prism Polarizers	488 nm - 3.4 µm			10 mm x 10 mmb (Clear Aperture)

Rutile Polarizers

Polarizer Type	Wavelength Range	Extinction Ratio	Transmissiona	Available Sizes
Rutile TiO2 Polarizers	2.2 µm - 4 µm	100 000:1		9.1 mm x 9.5 mm x 9.5 mmb and 10.7 mm x 15.9 mm x 15.9 mmb

• Click on the graph icons in this column to view a transmission curve for the corresponding polarizer. Each curve represents one substrate sample or coating run and is not guaranteed.
• Mounted in a protective box, unthreaded ring, or cylinder.
• Available unmounted or in an SM05-threaded (0.535"-40) mount that indicates the polarization axis.
• Available unmounted or in an SM1-threaded (1.035"-40) mount that indicates the polarization axis.
• PBS519: Average T_P:T_S > 1000:1
• Available unmounted or mounted in cubes for cage system compatibility.
• Calcite's transmittance of light near 350 nm is typically around 75% (see Transmission column).
• Available unmounted or in an unthreaded Ø1/2" housing.
• The transmission curves for calcite are valid for linearly polarized light with a polarization axis aligned with the mark on the polarizer's housing.
• The 1064 nm V coating corresponds to a -C26 suffix in the item number.
• Available unmounted or mounted in a protective box or unthreaded cylinder that indicates the polarization axis.