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Colloquium

Vacuum noise squeezing and its application to the gravitational wave detector

2019-03-06
  • Speaker : Prof. Ray-Kuang Lee (Institute of Photonics Technologies, National Tsing Hua University, Hsinchu, Taiwan)
  • Date : 2019-04-03 16:00 ~ 17:00
  • Location : JYS 331-2
  • Host : Dr. Hyung Mok Lee (President of KASI)

In this talk, I will report our recent implementation of squeezed vacuum states at 1064 nm. With a bow-tie, optical parametric oscillator cavity, and our home-made balanced homodyne detectors, noise reduction upto 10dB below the vacuum is measured. With the operation of a 300 m filter cavity prototype installed at theNational Astronomical Observatory of Japan, application of such a vacuum squeezed state to the gravitational wave detector, in order to achieve a broadband reduction, will be discussed.