Corning Polarcor™ Glass Polarizer, 1550 nm Nominal Wavelength

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Corning Polarcor™ Glass Polarizer, 1550 nm Nominal Wavelength
Categories:	Ceramic; Glass; Optical
Material Notes:	Polarcor™ is used as an optical element in polarization-dependent isolators, optical modulators, polarimetry systems, ellipsometers, shutters and other polarization-based devices. Polarcor is characterized by high extinction and low insertion loss throughout the 600 nm to 2300 nm wavelengths (depending on grade). Polarcor is a borosilicate glass that contains titanium, aluminum and silver. The polarizing mechanism is elongated silver crystals in the outer 20 µm ? 50 µm of the glass surface; this ensures the elimination of stray light, by absorbing the unwanted polarization. Since Polarcor is a solid glass product it is extremely resistant to chemical, physical and thermal damage, while exhibiting excellent optical properties. Information provided by Corning Incorporated.
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Physical Properties	Original Value	Comments

Density	2.412 g/cc
Thickness	150 microns
	200 microns
	500 microns

Mechanical Properties	Original Value	Comments
Hardness, Knoop	480	kg/mm²
Modulus of Elasticity	58.6 GPa
Poissons Ratio	0.21

Thermal Properties	Original Value	Comments
CTE, linear	6.50 µm/m-°C
Specific Heat Capacity	0.770 J/g-°C	estimated by Corning
Thermal Conductivity	0.00240 cal cm/sec-cm²-°C @Temperature 1.00 °C
	0.00270 cal cm/sec-cm²-°C @Temperature 100 °C
	0.00300 cal cm/sec-cm²-°C @Temperature 200 °C
	0.00330 cal cm/sec-cm²-°C @Temperature 300 °C
	0.00350 cal cm/sec-cm²-°C @Temperature 400 °C
	0.00380 cal cm/sec-cm²-°C @Temperature 500 °C
	0.00430 cal cm/sec-cm²-°C @Temperature 600 °C

Optical Properties	Original Value	Comments
Refractive Index	1.5051 @Wavelength 1550 nm
Abbe Number	57.6
IR Transmittance	>= 90.5 % @Wavelength 1510 - 1590 nm	Insertion Loss without AR-Coating < 0.43 dB
	>= 98.5 % @Wavelength 1510 - 1590 nm	Insertion Loss for 2 sides AR-Coated < 0.06 dB
Reflection Coefficient, Visible (0-1)	<= 0.0025	Reflectance R per each side

Descriptive Properties
Brewster's Angle	56.3°
Contrast	>100,000:1	Extinction Ration > 50 dB
Polarization Bandwidth (nm)	1510 - 1590

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CCORNG926 / 282897

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