Some potential core optic materials and their properties

Below we list several materials which could be used for advanced core optic materials and their mechanical and optical properties.

Mechanical Properties
 Material

 Best Bulk
Resonator Q

 Density
(cm/cm^3)

 Youngs modulus (Gpa)
 Poisson ratio
 Silica

 2x10^7(Ref.1)

 2.202

 72.6

 0.16
 Sapphire

 2x10^8(Ref.2)

 3.987

 400

 0.23
 YAG

 2x10^7(Ref.3)

 4.55

 283

 0.25
 Spinel

 NA

 3.577

275

 0.28
All unreferenced numbers are from the "Electro-Optics Handbook," Ronald Waynant and Marwood Ediger Editors,McGraw-Hill, Inc., 1994, pages 11.13-11.23.

Ref.1

Ref.2 "Systems with small dissipation," V.B. Braginsky, V.P Mitrofanov, and V.I. Panov, The University of Chicago Press, 1985, Page 30.

Ref.3 Sheila Rowan private communication, Ginzton Laboratory, Stanford University, Stanford, California, 94305-4085, (650)723-1178, srowan@loki.stanford.edu

Optical Properties
 Material

Crystal Class

Absorption 
@ 1064 nm

dn/dT 
(10^-6)

 Refractive
index
 Silica

 NA

 1 ppm/cm (Ref.1)

 11

 1.4506
 Sapphire

 Hexagonal

 ? (Ref.2)

 ? (Ref.4)

 1.7555(o) 1.7478(e)
 YAG

 Cubic

 100 ppm/cm (Ref.3)

 7.6(Ref.5)

 1.815
 Spinel

 Cubic
 

 250

 1.701

All unreferenced numbers are from the "Electro-Optics Handbook," Ronald Waynant and Marwood Ediger Editors,McGraw-Hill, Inc., 1994, pages 11.13-11.23.

Ref.1 Virgo reference

Ref.2

Ref.3 Martin Fejer, private communication, Ginzton Laboratory, Stanford University, Stanford, California, 94305-4085, (650)725-2160, fejer@leland.stanford.edu.

Ref.4

Ref.5 "Solid-State Laser Engineering," Walter Koechner, Springer Verlag, 1996, pg. 51.

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Last Update: 3/30/99
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