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Surface and Thin-Film Analysis

Spectroscopic Ellipsometer

VASE (J.A. Wollam Co., Inc)

Location:  22 Shepherd Labs

Contacts:  John Suddhard-Bangsrud


  • Vertical sample stage with vacuum hold down can accommodate up to 200mm diameter samples.
  • Automated angle of incidence from 20° to 90°.
  • Working spectral range of 250-1100nm.
  • Automated sample mapping (150mm by 150mm XY).
  • Single-chamber monochromator.
  • AutoRetarder-Woollam patented technology provides highest accuracy on any sample.  Also allows for advanced measurements like Depolarization, Anisotropy, and Mueller-Matrix
  • Operator computer: Pentium-4, 512MB RAMN, 80GB hard drive, CDRW, 17" Flat Panel monitor and Windows XP Pro; CD and DVD R/RW and USP ports for data access/transfer.

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