====== Substrates ======
Company: Coastline Optics, Inc.\\

Quotation: {{ :groups:mg:project_ptb-cavity:q14-2520_university_of_hannover.pdf |}}

===== 25.4mm Ø, Plano/Plano Fused Silica Substrates =====
  * Dimensions
    * Diameter: 25.4mm +0.0/-0.1 mm
    * Thickness: 6.35mm +/-0.2mm
  * Configuration: Plano/Plano

  * Side 1, central 5mm Ø area:
    * Surface Quality: < 10-5 - Scratch-Dig - per Mil- PRF-13830B.
    * Surface Roughness: < 1Angstrom. RMS asmeasured onour Zygo5500optical profiler.
    * Surface Figure: < 0.10wave P-V @ 633nm.

  * Side 1, annular area between 18.5mm Ø and 25.4mm Ø:
    * Surface Quality: < 20-10 scratch dig, suitable for optical contact.
    * Surface Figure: < 0.25wave P-V @ 633nm

  * Side 2, central 80% area:
    * Surface quality:  20-10scratch-dig
    * Surface figure: <0.10wave P-V @ 633nm

  * Bevels: 0.020"- 0.040" x 45degree facewidthnominal
  * Wedge: 10arc minutes

  * Material: Corning 79800A Fused Silica

  * We bought 4.

===== 25.4mm Ø, 1´Meter Concave ROC/Plano Fused Silica Substrates =====
  * Same as "25.4mm Ø, Plano/Plano Fused Silica Substrates"
  * Configuration: Concave/Plano

  * Side 1: -100cm+/-1cm concave ROC

  * Material: Corning 79800A Fused Silica

  * We bought 4.


===== IBS AR coating =====

  * IBS AR coat Side 2 of the above Item1and2substrates for R<0.10% @ 1550nm