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ResearcherID: M-3431-2018

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Employment (1)

National Institute of Advanced Industrial Science and Technology (AIST): Tsukuba, JP

2007-04-01 to present (National Metrology Institute of Japan)
Employment
Source: Self-asserted source
Akifumi Takamizawa

Education and qualifications (1)

Tokyo Institute of Technology: Tokyo, JP

1994-04-01 to 2003-03-31 | Ph. D
Education
Source: Self-asserted source
Akifumi Takamizawa

Works (31)

First uncertainty evaluation of the cesium fountain primary frequency standard NMIJ-F2

Metrologia
2022-06-01 | Journal article
DOI: 10.1088/1681-7575/ac5e7b
Part of ISSN: 0026-1394
Part of ISSN: 1681-7575
Contributors: Akifumi Takamizawa; Akifumi Takamizawa; Shinya Yanagimachi; Ken Hagimoto
Source: Self-asserted source
Akifumi Takamizawa

Surface activated room-temperature bonding in Ar gas ambient for MEMS encapsulation

Japanese Journal of Applied Physics
2018 | Journal article
DOI: 10.7567/JJAP.57.02BA04
WOSUID:

WOS:000422740700005
Contributors: Takagi, Hideki; Kurashima, Yuichi; Takamizawa, Akifumi; Ikegami, Takeshi; Yanagimachi, Shinya
Source: Self-asserted source
Akifumi Takamizawa via ResearcherID

Autonomous cryogenic sapphire oscillators employing low vibration pulse-tube cryocoolers at NMIJ

8th Symposium on Frequency Standards and Metrology 2015
2016 | Book chapter
DOI: 10.1088/1742-6596/723/1/012032
WOSUID:

WOS:000387774800032
Contributors: Ikegami, Takeshi; Watabe, Ken-ichi; Yanagimachi, Shinya; Takamizawa, Akifumi; Hartnett, John G.
Source: Self-asserted source
Akifumi Takamizawa via ResearcherID

External cavity diode laser with very-low frequency drift

Applied Physics Express
2016 | Journal article
DOI: 10.7567/APEX.9.032704
WOSUID:

WOS:000371302600021
Contributors: Takamizawa, Akifumi; Yanagimachi, Shinya; Ikegami, Takeshi
Source: Self-asserted source
Akifumi Takamizawa via ResearcherID

External cavity diode laser with frequency drift following natural variation in air pressure

Applied Optics
2015 | Journal article
DOI: 10.1364/AO.54.005777
WOSUID:

WOS:000356783700028
Contributors: Takamizawa, Akifumi; Yanagimachi, Shinya; Ikegami, Takeshi; Kawabata, Ryuzo
Source: Self-asserted source
Akifumi Takamizawa via ResearcherID

Improved Frequency Measurement of the S-1(0)-P-3(0) Clock Transition in Sr-87 Using a Cs Fountain Clock as a Transfer Oscillator

Journal of the Physical Society of Japan
2015 | Journal article
DOI: 10.7566/JPSJ.84.115002
WOSUID:

WOS:000364235900028
Contributors: Tanabe, Takehiko; Akamatsu, Daisuke; Kobayashi, Takumi; Takamizawa, Akifumi; Yanagimachi, Shinya; Ikegami, Takeshi; Suzuyama, Tomonari; Inaba, Hajime; Okubo, Sho; Yasuda, Masami et al.
Source: Self-asserted source
Akifumi Takamizawa via ResearcherID

Preliminary Evaluation of the Cesium Fountain Primary Frequency Standard NMIJ-F2

Ieee Transactions on Instrumentation and Measurement
2015 | Journal article
DOI: 10.1109/TIM.2015.2415015
WOSUID:

WOS:000359554900017
Contributors: Takamizawa, Akifumi; Yanagimachi, Shinya; Tanabe, Takehiko; Hagimoto, Ken; Hirano, Iku; Watabe, Ken-ichi; Ikegami, Takeshi; Hartnett, John G.
Source: Self-asserted source
Akifumi Takamizawa via ResearcherID

Atomic Fountain Clock With Very High Frequency Stability Employing a Pulse-Tube-Cryocooled Sapphire Oscillator

Ieee Transactions on Ultrasonics Ferroelectrics and Frequency Control
2014 | Journal article
DOI: 10.1109/TUFFC.2014.3060
WOSUID:

WOS:000341592000003
Contributors: Takamizawa, Akifumi; Yanagimachi, Shinya; Tanabe, Takehiko; Hagimoto, Ken; Hirano, Iku; Watabe, Ken-ichi; Ikegami, Takeshi; Hartnett, John G.
Source: Self-asserted source
Akifumi Takamizawa via ResearcherID

Development of the Cesium Fountain Frequency Standard, NMIJ-F2

2014 European Frequency and Time Forum (EFTF)
2014 | Journal article
WOSUID:

WOS:000392736300107
Contributors: Takamizawa, A.; Yanagimachi, S.; Tanabe, T.; Hagimoto, K.; Hirano, I.; Watabe, K.; Ikegami, T.; Hartnett, J. G.; IEEE
Source: Self-asserted source
Akifumi Takamizawa via ResearcherID

Generation of incoherent light from a laser diode subject to external optical injection from a superluminescent diode

Applied Optics
2014 | Journal article
DOI: 10.1364/AO.53.000435
WOSUID:

WOS:000330172300016
Contributors: Takamizawa, Akifumi; Yanagimachi, Shinya; Ikegami, Takeshi
Source: Self-asserted source
Akifumi Takamizawa via ResearcherID

Injected SLD light broadens laser-diode spectrum for OCT

Laser Focus World
2014 | Journal article
WOSUID:

WOS:000357434000003
Contributors: Takamizawa, Akifumi
Source: Self-asserted source
Akifumi Takamizawa via ResearcherID

Dual-Mixer Time-Difference Measurement System using Discrete Fourier Transformation

2013 Joint European Frequency and Time Forum & International Frequency Control Symposium (Eftf/ifc)
2013 | Book chapter
WOSUID:

WOS:000349844200077
Contributors: Yanagimachi, Shinya; Takamizawa, Akifumi; Tanabe, Takehiko; Hagimoto, Ken; Ikegami, Takehsi; IEEE
Source: Self-asserted source
Akifumi Takamizawa via ResearcherID

Spin polarization in a freely evolving sample of cold atoms

Applied Physics B-Lasers and Optics
2013 | Journal article
DOI: 10.1007/s00340-013-5368-7
WOSUID:

WOS:000319879500026
Contributors: Szymaniec, Krzysztof; Noh, Heung-Ryoul; Park, Sang Eon; Takamizawa, Akifumi
Source: Self-asserted source
Akifumi Takamizawa via ResearcherID

Proposal of a truncated atomic beam fountain for reduction of collisional frequency shift

Physical Review a
2010 | Journal article
DOI: 10.1103/PhysRevA.82.013632
WOSUID:

WOS:000280292700015
Contributors: Takamizawa, A.; Shirakawa, Y.; Yanagimachi, S.; Ikegami, T.
Source: Self-asserted source
Akifumi Takamizawa via ResearcherID

Frequency Measurement of a Sr Optical Lattice Clock Using a Coherent Optical Link over a 120-km Fiber

2009 Conference on Lasers and Electro-Optics and Quantum Electronics and Laser Science Conference (Cleo/qels 2009), Vols 1-5
2009 | Journal article
WOSUID:

WOS:000274751300154
Contributors: Hong, F. -L.; Musha, M.; Takamoto, M.; Inaba, H.; Yanagimachi, S.; Takamizawa, A.; Watabe, K.; Ikegami, T.; Imae, M.; Fujii, Y. et al.
Source: Self-asserted source
Akifumi Takamizawa via ResearcherID

High-contrast dark resonances with linearly polarized light on the D-1 line of alkali atoms with large nuclear spin

Applied Optics
2009 | Journal article
DOI: 10.1364/AO.48.001098
WOSUID:

WOS:000264387300010
Contributors: Watabe, Ken-ichi; Ikegami, Takeshi; Takamizawa, Akifumi; Yanagimachi, Shinya; Ohshima, Shin-ichi; Knappe, Svenja
Source: Self-asserted source
Akifumi Takamizawa via ResearcherID

Measuring the frequency of a Sr optical lattice clock using a 120 km coherent optical transfer

Optics Letters
2009 | Journal article
DOI: 10.1364/OL.34.000692
WOSUID:

WOS:000264522400048
Contributors: Hong, F. -L.; Musha, M.; Takamoto, M.; Inaba, H.; Yanagimachi, S.; Takamizawa, A.; Watabe, K.; Ikegami, T.; Imae, M.; Fujii, Y. et al.
Source: Self-asserted source
Akifumi Takamizawa via ResearcherID

Progress of the fountain frequency standard at NMIJ in 2008

2009 Joint Meeting of the European Frequency and Time Forum and the Ieee International Frequency Control Symposium, Vols 1 and 2
2009 | Journal article
DOI: 10.1109/FREQ.2009.5168348
WOSUID:

WOS:000274814900218
Contributors: Yanagimachi, S.; Takamizawa, A.; Watabe, K.; Hagimoto, K.; Ikegami, T.; IEEE
Source: Self-asserted source
Akifumi Takamizawa via ResearcherID

Cryogenic-sapphire-oscillator-based reference signal at 1 GHz with 10(-15) level instability

Japanese Journal of Applied Physics
2008 | Journal article
DOI: 10.1143/JJAP.47.7390
WOSUID:

WOS:000259657700082
Contributors: Watabe, Ken-ichi; Yanagimachi, Shinya; Takamizawa, Akifumi; Ikegami, Takeshi; Ohshima, Shin-ichi; Santarelli, Giorgio; Locke, Clayton R.; Hartnett, John G.
Source: Self-asserted source
Akifumi Takamizawa via ResearcherID

Dark Resonance in Bichromatic Linearly Polarized Optical Field on Cs D-1 Line

2008 Ieee International Frequency Control Symposium, Vols 1 and 2
2008 | Journal article
DOI: 10.1109/FREQ.2008.4622967
WOSUID:

WOS:000261285400022
Contributors: Watabe, K.; Ikegami, T.; Takamizawa, A.; Yanagimachi, S.; Ohshima, S.; Knappe, S.; IEEE
Source: Self-asserted source
Akifumi Takamizawa via ResearcherID

Recent progress of an atomic fountain frequency standard NMIJ-F1 (2006-2007)

2008 Conference on Precision Electromagnetic Measurements Digest
2008 | Journal article
DOI: 10.1109/CPEM.2008.4574784
WOSUID:

WOS:000257775400162
Contributors: Yanagimachi, S.; Takamizawa, A.; Yoshida, Y.; Yanagimachi, A.; Watabe, K.; Hagimoto, K.; Ikegami, T.
Source: Self-asserted source
Akifumi Takamizawa via ResearcherID

Deflecting, focusing, and funnelling atoms by near-field light

Journal of Optics a-Pure and Applied Optics
2006 | Journal article
DOI: 10.1088/1464-4258/8/4/S16
WOSUID:

WOS:000237812800017
Contributors: Ito, H; Yamamoto, K; Takamizawa, A; Kashiwagi, H; Yatsui, T
Source: Self-asserted source
Akifumi Takamizawa via ResearcherID

Littrow-type external-cavity diode laser with a triangular prism for suppression of the lateral shift of output beam

Review of Scientific Instruments
2006 | Journal article
DOI: 10.1063/1.2190287
WOSUID:

WOS:000237136500060
Contributors: Takamizawa, A; Yonezawa, G; Kosaka, H; Edamatsu, K
Source: Self-asserted source
Akifumi Takamizawa via ResearcherID

Miniature fluorescence detector for single atom observation on a microchip

Optics Express
2006 | Journal article
DOI: 10.1364/OE.14.010976
WOSUID:

WOS:000242325400003
Contributors: Takamizawa, Akifumi; Steinmetz, Tilo; Delhuille, Remi; Hansch, Theodor W.; Reichel, Jakob
Source: Self-asserted source
Akifumi Takamizawa via ResearcherID

Observation of cold atom output from an evanescent-light funnel

Applied Physics Letters
2004 | Journal article
DOI: 10.1063/1.1786362
WOSUID:

WOS:000223859800045
Contributors: Takamizawa, A; Ito, H; Yamada, S; Ohtsu, M
Source: Self-asserted source
Akifumi Takamizawa via ResearcherID

Accumulative atom detection by magneto-optical trap for near-field optical funnel

Japanese Journal of Applied Physics Part 1-Regular Papers Short Notes & Review Papers
2003 | Journal article
DOI: 10.1143/JJAP.42.3658
WOSUID:

WOS:000183927800085
Contributors: Takamizawa, A; Ito, H; Yamada, S; Ohtsu, M
Source: Self-asserted source
Akifumi Takamizawa via ResearcherID

Cold-atom output from a near-field optical funnel

2003 Third Ieee Conference on Nanotechnology, Vols One and Two, Proceedings
2003 | Journal article
WOSUID:

WOS:000185389900075
Contributors: Takamizawa, A; Ito, H; Yamada, S; Ohtsu, M; IEEE
Source: Self-asserted source
Akifumi Takamizawa via ResearcherID

Multireflection of cold atoms in a near-field optical funnel

Japanese Journal of Applied Physics Part 1-Regular Papers Short Notes & Review Papers
2002 | Journal article
DOI: 10.1143/JJAP.41.6215
WOSUID:

WOS:000179893600067
Contributors: Takamizawa, A; Ito, H; Ohtsu, M
Source: Self-asserted source
Akifumi Takamizawa via ResearcherID

Generation of a cold atomic beam with a near-field optical funnel

Cleo(R)/pacific Rim 2001, Vol I, Technical Digest
2001 | Journal article
WOSUID:

WOS:000186182500243
Contributors: Takamizawa, A; Ito, H; Ohtsu, M; IEEE
Source: Self-asserted source
Akifumi Takamizawa via ResearcherID

High efficiency excitation of cylindrical optical near fields for atom guidance

Japanese Journal of Applied Physics Part 1-Regular Papers Short Notes & Review Papers
2000 | Journal article
DOI: 10.1143/JJAP.39.6737
WOSUID:

WOS:000166820100054
Contributors: Takamizawa, A; Ito, H; Ohtsu, M
Source: Self-asserted source
Akifumi Takamizawa via ResearcherID

Precise control of atoms with optical near fields: deflection and trap

Near-Field Optics: Physics, Devices, and Information Processing
1999 | Book chapter
DOI: 10.1117/12.363842
WOSUID:

WOS:000083488100001
Contributors: Ito, B; Takamizawa, A; Tanioka, H; Ohtsu, M
Source: Self-asserted source
Akifumi Takamizawa via ResearcherID
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