Daisuke Hashimoto

• Biography

• I was born in Hyougo, Japan, on 1981.
• I got a bachelorfs degree in science in 2004 from Kyoto University.
• I got a masterfs degree in science in 2006 from Kyoto University.
• I joined NTT Basic Research Laboratories in 2006.

• Research

• Quantum Optics and Quantum Information

• Hobby

• Playing tennis and snowboard.

• Journals

• D. Hashimoto and K. Shimizu, "Cooling an optical fiber to 4.5 K by indirect thermal contact with a liquid-helium flow and spectroscopic temperature measurements," Rev. Sci. Instrum. 79, 093102 (2008).
• K. Shimizu and D. Hashimoto, "Pairwise quantum correlation formed in an ensemble of atomic two-level systems storing squeezed light," Phys. Rev. A 79, 062312 (2009).
• D. Hashimoto and K. Shimizu, "Population relaxation induced by the Boson peak mode observed in optical hyperfine spectroscopy of ¹⁶⁷Er³⁺ ions doped in a silicate glass fiber," J. Opt. Soc. Am. B 28, 2227 (2011).

• International Conferences

• D. Hashimoto and K. Shimizu, "Transient Saturation Spectroscopy for measuring the lifetime of hyperfine sublevels in ¹⁶⁷Er³⁺ ions doped in a silicate glass fiber," CLEO/Europe-EQEC 2011, CE.P.12 WED

• Domestic Conferences

• D. Hashimoto and K. Shimizu, "Photon-counting Raman spectroscopy for temperature diagnostics of an optical fiber cooled in a cryostat," The Japan Society of Applied Physics 68th Annual Meeting, 4 - 8 September 2007, 7p-N-2 (Japanese).
• K. Shimizu and D. Hashimoto, "Entanglement properties in an ensemble of atomic system storing squeezed light," The Physical Society of Japan 63rd Annual Meeting, 23 - 26 March 2008, 25p-RF-7 (Japanese).
• D. Hashimoto and K. Shimizu, "Brillouin spectroscopy for temperature diagnostics of an optical fiber cooled in a cryostat," The Japan Society of Applied Physics 55th Annual Meeting, 27 - 30 March 2008, 27p-ZE-3 (Japanese).
• K. Shimizu and D. Hashimoto, "Entanglement properties in an atomic ensemble quantum memory storing a squeezed state of light," The 18th Quantum Information Technology Symposium (QIT 18), 22 - 23 May 2008 (Japanese).
• D. Hashimoto and K. Shimizu, "Spectroscopy of optical and hyperfine levels in Er³⁺ ions in a glass fiber," The Physical Society of Japan Autumn Meeting, 20 - 23 September 2008, 20p-ZA-6 (Japanese).
• K. Shimizu and D. Hashimoto, "Relaxation effects on a squeezed light retrieved from an atomic ensemble memory," The Physical Society of Japan Autumn Meeting, 20 - 23 September 2008, 20p-ZD-3 (Japanese).
• D. Hashimoto and K. Shimizu, "Transparency induced by lengthening erbium-doped glass fiber," The Physical Society of Japan Spring Meeting, 27 - 30 March 2009, 28a-SD-1 (Japanese).
• D. Hashimoto and K. Shimizu, "Population relaxation properties of Zeeman sublevels in Er³⁺ ions doped in a cooled silica glass fiber," The Japan Society of Applied Physics 57th Annual Meeting, 17 - 20 March 2010, 18a-L-8 (Japanese).
• D. Hashimoto and K. Shimizu, "Population relaxation by the boson peak mode observed for hyperfine sublevels in ¹⁶⁷Er³⁺ ions doped in a silicate glass fiber," The Physical Society of Japan Spring Meeting, 25 - 28 March 2011, 28a-RB-5 (Japanese).
• D. Hashimoto and K. Shimizu, "Population relaxation induced by boson peak mode observed for hyperfine sublevels in ¹⁶⁷Er³⁺ ions doped in a silicate glass fiber (I): Experiment," The Physical Society of Japan Autumn Meeting, 21 - 24 September 2011, 23aRB-10 (Japanese).
• D. Hashimoto and K. Shimizu, "Population relaxation induced by boson peak mode observed for hyperfine sublevels in ¹⁶⁷Er³⁺ ions doped in a silicate glass fiber (II): Theory," The Physical Society of Japan Autumn Meeting, 21 - 24 September 2011, 23aRB-11 (Japanese).

Daisuke Hashimoto
Quantum Optical State Control Research Group
Optical Science Laboratory
NTT Basic Research Laboratories

Nippon Telegraph and Telephone Corporation
Telephone : +81 46 240 3938
Facsimile : +81 46 240 4726
E-mail : hashidai
3-1, Morinosato Wakamiya, Atsugi-shi, Kanagawa Pref., 243-0198 Japan