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Optical cavity characterization of the Tor Vergata Fabry-Perot interferometer

  Articoli su Riviste JCR/ISI  (anno 2014)

Autori:  Giovannelli L., Berrilli F., Del Moro D., Greco V., Piazzesi R., Sordini A., Stangalini M

Affiliazione Autori:  Dipartimento di Fisica, Università di Roma Tor Vergata CNR - Istituto Nazionale di Ottica INAF - Osservatorio Astronomico di Roma

Riassunto:  We report the first optical and control performances of the Tor Vergata Fabry-Perot interferometer prototype designed and realized in the framework of the ADvanced Astronomy for HELIophysics (ADAHELI) solar mission project. The characterization of the the coated surfaces of the two plates defining the optical cavity has been carried out with a Zygo interferometer able to measure the microroughness and global curvature of the cavity. The peak-to-valley errors are compliant with the manufacturer specifications and correspond to lambda/70 and lambda/80 @632:8 nm respectively. In addition, we present a first estimate of the interferometer spectral stability in stable open-air condition. A spectral uncertainty equal to 0.95 pm is found as the typical RMS over one hour of the passband central wavelength position.

Rivista/Giornale:  PROCEEDINGS OF SPIE
Volume n.:  9147      Pagine da: 914782-1  a: 914782-8
DOI: 10.1117/12.2056477

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