The018th KARC Colloquium
The018th KARC Colloquium was ended. Thank you for the participation.
| Date&Time | December 11th Wednesday 15:00 - 16:00 |
| Place | Small conference room, the 1st research bldg. 2nd floor. |
| Lecturer | "Optical frequency standards based on the mercury ion" |
| Speaker | Dr. Utako Tanaka (Senior research member of Advanced Laser Science Group, KARC) |
| Abstract | Dr. Tanaka will give a report on mercury ion trap experiment conducted at National Institute of Standards and Technology (NIST), a non-regulatory federal agency within the U.S. Commerce Department's Technology Administration, focusing on the experiments performed during her stay in the US. NIST has succeeded to observe the frequency of optical region of 10?15Hz with a few Hz of resolution by utilizing S-D transition (optical clock transition) of laser-cooled mercury ion and the frequency stabilized laser. Their present challenge is to evaluate the uncertainty for optical frequency standard based on this transition. Dr. Tanaka also likes to address on the details of apparatus, such as trap device, light source for laser cooling, and light source for clock transition. |
| Language | Japanese |
| Admission | Free |
| Organizer | Dr. Masayoshi Watanabe, Advanced Laser Science Group Leader |