The following email has been sent to AGATSUMA, Kazuhiro:
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Dear Kazuhiro Agatsuma,
The submission of your abstract has been successfully processed.
Abstract submitted: https://indico.cern.ch/event/192695/call-for- abstracts/my-abstracts.
Status of your abstract: https://indico.cern.ch/event/192695/call- for-abstracts/258/.
See below a detailed summary of your submitted abstract:
Conference: Tipp 2014 - Third International Conference on Technology and Instrumentation in Particle Physics
Submitted by: AGATSUMA, Kazuhiro
Submitted on: 24 February 2014 15:12
Title: Phase camera development for gravitational wave detectors
Abstract content I will report a study of the phase camera, which is a wave-front sensor of laser. This sensor is utilized for observing phase-modulated laser in an interferometer of gravitational wave (GW) detectors. The GW detectors are well sophisticated apparatus that need accurate position controls for mirrors. The laser modulation/demodulation is used for readout of the mirror displacement in such accurate control. Laser sideband signals created by phase modulation become very important not only for the control but also sensitivity of detector because the quality of controls affect a noise level. We are preparing this phase camera for VIRGO, which is a GW detector placed in Pisa. The sideband signals in power recycling cavity are easily degraded by mirror aberrations in VIRGO. In order to correct such mirror aberrations, CO2 laser and compensation plates will be prepared, and then, our phase camera will be used to see mirror aberrations through the state of sidebands. Hence, this phase camera can contribute to VIRGO for making high performance controls.
Summary
Primary Authors: AGATSUMA, Kazuhiro (N) agatsuma@nikhef.nl
Co-authors: , Jo Van Den Brand () jo@nikhef.nl VAN BEUZEKOM, Martin (Nikhef) martinb@nikhef.nl
Abstract presenters: AGATSUMA, Kazuhiro
Track classification: Emerging technologies: 4e) Precision engineering
Presentation type: Oral
Comments: