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Development of a Fabry-Perot cavity stabilization system

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dc.contributor.author Tanya Das
dc.date.accessioned 2020-11-27T01:13:14Z
dc.date.available 2020-11-27T01:13:14Z
dc.date.issued 2016-07
dc.identifier.citation M. Tech. Thesis, University of Calcutta, Calcutta en_US
dc.identifier.uri http://prints.iiap.res.in/handle/2248/7469
dc.description Thesis Supervisor Dr. Ravinder Kumar Banyal © Indian Institute of Astrophysics en_US
dc.description.abstract High precision spectroscopy is bounded by two major challenges, first being instrument instability, mainly caused by temperature and pressure variations, and second is due to the limitations of traditional calibration methods. Spec- trographs require suitable calibration sources for precise Radial velocity (RV) measurements. Emission lamps do not provide homogenous line distributions and intensities, giving limited wavelength coverage and spectrum contami- nation from di erent sources. A wavelength calibrator based on Fabry-Perot interferometer can provide stable transmission lines covering full wavelength range and can achieve 1-10 m/s RV precision. A vacuum enclosure has been designed and constructed for the Fabry-Perot to be mounted in to minimize pressure fluctuation effects. Enclosure temperature is being controlled using a Proportional-Integral (PI) controller to provide thermal stability. en_US
dc.language.iso en en_US
dc.publisher Indian Institute of Astrophysics en_US
dc.subject Fabry-Perot en_US
dc.subject Instrumentation en_US
dc.title Development of a Fabry-Perot cavity stabilization system en_US
dc.type Thesis en_US

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