16–20 Oct 2023
Kingscliff, NSW, Australia
Australia/Sydney timezone

Towards an atomic gravimeter with the accuracy of below 10 nm/s2; overcoming the current uncertainty of KRISS-AGRb-1

Not scheduled
20m
Kingscliff, NSW, Australia

Kingscliff, NSW, Australia

Mantra on Salt Beach Kingscliff, Tweed Coast Gunnamatta Avenue, Kingscliff NSW
Invited Poster Precision and Quantum Metrology with Atoms, Photons and Phonons

Speaker

Sang-Bum Lee (Korea Research Institute of Standard and Science)

Description

We report the uncertainty evaluation of the atomic gravimeter KRISS-AGRb-1 developed at KRISS with the total uncertainty of below 30 nm/s^2 which is mainly limited by a wavefront distortion, and we present the way to overcome the uncertainty limited by the wavefront distortion and reach the accuracy of below 10 nm/s^2, by combining adjusting beam size of a detection laser and compensating the bias by the direct measurement of the wavefront distortions induced by all optical elements

Author

Sang-Bum Lee (Korea Research Institute of Standard and Science)

Co-authors

Dr Hyun Gyung Lee (Korea Research Institute of Standard and Science) Dr Hyun-Gue Hong (Korea Research Institute of Standard and Science) Dr Jae Hoon Lee (Korea Research Institute of Standard and Science) Dr Meung Ho Seo (Korea Research Institute of Standard and Science) Dr Sang Eon Park (Korea Research Institute of Standard and Science) Mr Sang Lok Lee (Korea Research Institute of Standard and Science) Dr Sangwon Seo (Korea Research Institute of Standard and Science) Dr Seji Kang (Korea Research Institute of Standard and Science) Dr Taeg Yong Kwon (Korea Research Institute of Standard and Science) Dr Young-Ho Park (Korea Research Institute of Standard and Science)

Presentation materials