Umicore GASIR®1 Infrared Transmitting Glass...Moulded spherical, aspherical and asphero-diffractive...
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GASIR ® 1 – Infrared Transmitting Glass Product number: GASIR ® 1 Introduction Umicore’s GASIR ® chalcogenide glass has been developed for high transmission, high refractive index and maximum purity. Available as raw material, blanks, spherical lenses, aspheres and asphero- diffractive lenses, GASIR ® improves system performance while simultaneously reducing cost. GASIR ® 1 is an industry standard amongst the chalcogenide glasses. Combining good mechanical properties with excellent optical proper- ties and moldability, it has proven its value in the field by being the material of choice for over 1,000,000 lenses. Physical Data & Typical Characteristics Mechanical properties Density 4.40 ± 0.01 g/cm 3 Compression resistance 161 MPa Young’s modulus 17.89 GPa Torsion modulus 6.98 GPa Flexion resistance 17.2 MPa Poisson Ratio 0.28 Vickers’ Hardness 170 HV Thermal properties Glass temperature 292 ◦ C Upper use temperature 250 ◦ C Specific heat 0.36 Jg -1 K -1 Coefficient of thermal expansion (300 K) 17 x 10 -6 K -1 Thermal conductivity (288 – 307 K) 0.28 Wm -1 K -1 Heat capacity 0.36 Jg -1 K -1 Dielectric constant >20 MΩ (insulator) Optical properties Refractive index @ 20 ◦ C λ (μm) n 1.064 2.5796 1.54 2.5424 2 2.5267 3 2.5148 3.5 2.5120 4 2.5100 4.5 2.5085 5 2.5071 6 2.5047 7 2.5024 8 2.4999 9 2.4973 10 2.4944 11 2.4911 12 2.4874 13 2.4834 14 2.4787 Variation between lots < 6 x 10 -4 Temperature coefficient of refractive index ( ∂n ∂T ) λ (μm) T = 20 ◦ C T = 100 ◦ C 1.06 8.4 x 10 -5 K -1 10.1 x 10 -5 K -1 10.66 5.5 x 10 -5 K -1 6.7 x 10 -5 K -1 Electro-Optic Materials is ISO certified: ISO 9001 & ISO 14001 Document revision 02 Umicore IR Glass Tel: +33 2 99 04 32 26 Tel: +1 918 673 1650 Umicore Optical Materials USA Z.A. du Boulais Fax: +33 2 99 04 32 29 Fax: +1 918 673 2121 2976 South 614 Road, PO Box 737 35690 Acign ´ e [email protected] [email protected] Quapaw, OK 74363 FRANCE USA 1 optics.umicore.com – Umicore Infrared Optics reserves the right to amend or withdraw specifications without prior notice.
Transcript of Umicore GASIR®1 Infrared Transmitting Glass...Moulded spherical, aspherical and asphero-diffractive...
GASIR®1 – InfraredTransmitting Glass
Product number: GASIR®1
Introduction
Umicore’s GASIR® chalcogenide glass has been developed for hightransmission, high refractive index and maximum purity. Availableas raw material, blanks, spherical lenses, aspheres and asphero-diffractive lenses, GASIR® improves system performance whilesimultaneously reducing cost.
GASIR®1 is an industry standard amongst the chalcogenide glasses.Combining good mechanical properties with excellent optical proper-ties and moldability, it has proven its value in the field by being thematerial of choice for over 1,000,000 lenses.
Physical Data & Typical Characteristics
Mechanical properties
Density 4.40 ± 0.01 g/cm3
Compression resistance 161 MPaYoung’s modulus 17.89 GPaTorsion modulus 6.98 GPaFlexion resistance 17.2 MPaPoisson Ratio 0.28Vickers’ Hardness 170 HV
Thermal properties
Glass temperature 292 CUpper use temperature 250 CSpecific heat 0.36 Jg−1K−1
Coefficient of thermal expansion (300 K) 17 x 10−6 K−1
Thermal conductivity (288 – 307 K) 0.28 Wm−1K−1
Heat capacity 0.36 Jg−1K−1
Dielectric constant >20 MΩ (insulator)
Optical properties
Refractive index @ 20 C
λ (µm) n1.064 2.57961.54 2.54242 2.52673 2.51483.5 2.51204 2.51004.5 2.50855 2.50716 2.50477 2.50248 2.49999 2.497310 2.494411 2.491112 2.487413 2.483414 2.4787Variation between lots < 6 x 10−4
Temperature coefficient of refractive index(∂n∂T
)λ (µm) T = 20 C T = 100 C1.06 8.4 x 10−5 K−1 10.1 x 10−5 K−1
10.66 5.5 x 10−5 K−1 6.7 x 10−5 K−1
Electro-Optic Materials is ISO certified: ISO 9001 & ISO 14001 Document revision 02Umicore IR Glass Tel: +33 2 99 04 32 26 Tel: +1 918 673 1650 Umicore Optical Materials USAZ.A. du Boulais Fax: +33 2 99 04 32 29 Fax: +1 918 673 2121 2976 South 614 Road, PO Box 73735690 Acigne [email protected] [email protected] Quapaw, OK 74363FRANCE USA
1optics.umicore.com – Umicore Infrared Optics reserves the right to amend or withdraw specifications without prior notice.
Optical properties (continued)
λ (µm) Max. absorptioncoefficient (cm−1)
Transmission*(%)
0.8 591 65.01.3 67.71.54 68.42 68.53 68.54 68.55 68.56 68.57 68.58 0.01 68.59 0.01 68.510 0.01 68.511 0.04 68.512 0.2 66.013 0.4 64.014 64.0
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0 2 4 6 8 10 12 14
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Wavelength (µm)
*: Including Fresnel lossesUncoated plano disc polished both sides, thickness 2.0 mm, double beam IR spectrometer Perkin Elmer 882.Air reference method, slit dimension: diameter 8 mm
Available shapes
Disks, blanksMoulded spherical, aspherical and asphero-diffractive lensesFor coating options, please consult our datasheets at eom.umicore.com
Sizes
Diameters up to 200 mm
Additional information
Special demands outside the scope of above-mentioned specifications and limits upon request
Electro-Optic Materials is ISO certified: ISO 9001 & ISO 14001 Document revision 02Umicore IR Glass Tel: +33 2 99 04 32 26 Tel: +1 918 673 1650 Umicore Optical Materials USAZ.A. du Boulais Fax: +33 2 99 04 32 29 Fax: +1 918 673 2121 2976 South 614 Road, PO Box 73735690 Acigne [email protected] [email protected] Quapaw, OK 74363FRANCE USA
2optics.umicore.com – Umicore Infrared Optics reserves the right to amend or withdraw specifications without prior notice.
