2023 K. Shu, K. Yamada, K. Hashidate, A. Ishida, T. Namba, S. Asai, M. Kuwata-Gonokami, Y. Tajima, E. Chae, K. Yoshioka, N. Oshima, B. E. O'Rourke, K. Michishio, K. Ito, K. Kumagai, R. Suzuki, S. Fujino, T. Hyodo, I. Mochizuki, K. Wada, T. Kai, Development of a porous silica cavity for laser excitation of confined positronium, JJAP Conf. Proc. 9, 011202 (2023).
K. Shu, N. Miyamoto, Y. Motohashi, R. Uozumi, Y. Tajima, K. Yoshioka, Development of an optimal laser for chirp cooling of positronium based on chirped pulse-train generator, arXiv:2308.00877.
K. Shu, Y. Tajima, R. Uozumi, N. Miyamoto, S. Shiraishi, T. Kobayashi, A. Ishida, K. Yamada, R. W. Gladen, T. Namba, S. Asai, K. Wada, I. Mochizuki, T. Hyodo, K. Ito, K. Michishio, B. E. O'Rourke, N. Oshima, K. Yoshioka, Laser cooling of positronium, arXiv:2310.08761.
2022 Y. Chen, M. Horikoshi, M. Kuwata-Gonokami, and K. Yoshioka, Creating a noninteracting Bose gas in equilibrium at finite temperature, Phys. Rev. A 105, 043312 (2022).
E. Chae, K. Nakashima, and K. Yoshioka, Dual optical frequency combs with ultra-low relative phase jitters from 550
nm to 1020 nm for precision spectroscopy, Opt. Exp. 30, 18703 (2022).
Y. Morita, K. Yoshioka, and M. Kuwata-Gonokami, Observation of Bose-Einstein condensates of excitons in a bulk semiconductor, Nature Commun. 13, 5388 (2022).
T. Sakamoto, and K. Yoshioka, Observation of two-photon excitation-induced fluorescence of ground-state neutral carbon atoms in vacuum generated by laser ablation of graphite, Phys. Rev. A 106, 052808 (2022).
J. Omachi, N. Naka, K. Yoshioka, and M. Kuwata-Gonokami, Mid-infrared dielectric response of Fermi-degenerate electron-hole droplets in diamond, Phys. Rev. B 106, 235205 (2022).
2021 E. Chae, E. Kambe, K. Motohara, H. Izumiura, M. Doi, K. Yoshioka, A compact green Ti:Sapphire astro-comb with 43-GHz repetition frequency, J. Opt. Soc. Am. B 38, A1 (2021).
D. D. Kang, A. Gross, H. Yang, Y. Morita, K. S. Choi, K. Yoshioka, and N. Y. Kim, Temperature Study of Rydberg Exciton Optical Properties in Cu2O, Phys. Rev. B 103, 205203 (2021).
K. Yamada, Y. Tajima, T. Murayoshi, X. Fan, A. Ishida, T. Namba, S. Asai,
M. Kuwata-Gonokami, E. Chae, K. Shu, and K. Yoshioka, Theoretical Analysis and Experimental Demonstration of a Chirped Pulse-Train
Generator and its Potential for Efficient Cooling of Positronium, Phys. Rev. Applied 16, 014009 (2021).
T. Sakamoto and K. Yoshioka, Chirped pulse amplification of an ultrahigh-repetition-rate Ti:sapphire
frequency comb using a tapered semiconductor amplifier, Opt. Lett. 46, 4642 (2021).
2020 D. Hirano, Y. Nagakubo, J. Omachi, K. Yoshioka, and M. Kuwata-Gonokami, Measurement of complex refractive index with tunable extreme ultraviolet high harmonic source, Opt. Exp. 28, 15148 (2020).
N. Tsuji, W. Ootani, L. Liu, K. Yoshioka, Y. Morita, and M. Kuwata-Gonokami, Study on saturation of SiPM for scintillator calorimeter using UV laser, J. Instrum. 15, C05052 (2020).
P. Xia, M. Kuwata-Gonokami, and K. Yoshioka, Geometrical analysis of Kerr-lens mode-locking for high-peak-power ultrafast oscillators, Jpn. J. Appl. Phys. 59, 062002 (2020).
2019 Y. Chen, M. Horikoshi, K. Yoshioka, and M. Kuwata-Gonokami, Dynamical Critical Behavior of an Attractive Bose-Einstein Condensate Phase Transition, Phys. Rev. Lett. 122, 040406 (2019).
E. Chae, K. Nakashima, T. Ikeda, K. Sugiyama, and K. Yoshioka, Direct phase-locking of a Ti:Sapphire optical frequency comb to a remote
optical frequency standard, Opt. Exp. 27, 15649 (2019).
Y. Morita, H. Suzuki, K. Yoshioka, and M. Kuwata-Gonokami, Observation of ultrahigh mobility excitons in a strain field by space-
and time-resolved spectroscopy at subkelvin temperatures, Phys. Rev. B 100, 035206 (2019).
K. Yoshioka, J. Omachi, M. Sakano, T. Shimojima, K. Ishizaka, and M. Kuwata-Gonokami, Gigahertz-repetition-rate, narrowband-deep-ultraviolet light source for minimization of acquisition time in high-resolution angle-resolved photoemission spectroscopy, Rev. Sci, Instrum. 90, 123109 (2019).
2018 A. Ishida, K. Shu, T. Murayoshi, X. Fan, T. Namba, S. Asai, K. Yoshioka,
M. Kuwata-Gonokami, N. Oshima, B. E. O’Rourke, and R. Suzuki, Study on positronium Bose–Einstein condensation, JJAP Conf. Proc. 7, 011001 (2018).
2017
X. Fan, S. Kamioka, T. Inada, T. Yamazaki, T. Namba, S. Asai, J. Omachi, K. Yoshioka, M. Kuwata-Gonokami, A. Matsuo, K. Kawaguchi, K. Kindo, H. Nojiri, The OVAL experiment: A new experiment to measure vacuum magnetic birefringence using high repetition pulsed magnets, Eur. Phys. J. D 71, 308 (2017).
Y. Nagashima, A. Iwata, K. Yoshioka, J. Omachi, J. Shimizu, S. Tsuji, J. Yumoto, and M. Kuwata-Gonokami, A new method to visualize abnormal lipid accumulation in tissues from Fabry disease patient using Raman spectroscopic marker of globotriaosylceramide, J. Neurol. Sci. 381, 700 (2017).
2016
K. Shu, X. Fan, T. Yamazaki, T. Namba, S. Asai, K. Yoshioka, and M. Kuwata-Gonokami, Study on cooling of positronium for Bose-Einstein condensation, J. Phys. B: At. Mol. Opt. Phys. 49, 104001 (2016).
2015
K. Yoshioka and M. Kuwata-Gonokami, Absorption imaging of trapped 1s paraexcitons in bulk Cu2O, Phys. Rev. B 91, 195207 (2015).
2014
T. Shimojima, Y. Suzuki, T. Sonobe, A. Nakamura, M. Sakano, J. Omachi, K. Yoshioka, M. Kuwata-Gonokami, K. Ono, H. Kumigashira, A.E. Bohmer, F. Hardy, T. Wolf, C. Meingast, H. v. Lohneysen, H. Ikeda, and K. Ishizaka, Lifting of xz/yz orbital degeneracy at the structural transition in detwinned FeSe, Phys. Rev. B 90, 121111(R) (2014).
K. Yoshioka, K. Miyashita, and M. Kuwata-Gonokami, Selective generation of ultracold high-density 1s orthoexcitons in Cu2O with phase-modulated pulse using acousto-optic programmable filter, Opt. Exp. 22, 3261 (2014).
2013
M. Sato, T. Higuchi, N. Kanda, K. Konishi, K. Yoshioka, T. Suzuki, K. Misawa and M. Kuwata-Gonokami, Terahertz polarization pulse shaping with arbitrary field control, Nature Photon. 7, 724 (2013).
K. Yoshioka, Y. Morita, K. Fukuoka, and M. Kuwata-Gonokami, Generation of ultracold paraexcitons in cuprous oxide: A path toward a stable Bose-Einstein condensate, Phys. Rev. B 88, 041201(R) (2013). (Editors' Suggestion)
J. Omachi, T. Suzuki, K. Kato, N. Naka, K. Yoshioka, and M. Kuwata-Gonokami, Observation of Excitonic N-Body Bound States: Polyexcitons in Diamond, Phys. Rev. Lett., 111, 026402 (2013).
2012
J. Omachi, K. Yoshioka, and M. Kuwata-Gonokami, High-power, narrow-band, high-repetition-rate, 5.9 eV coherent light source using passive optical cavity for laser-based angle-resolved photoelectron spectroscopy, Opt. Exp. 20, 23542 (2012).
K. Yoshioka and M. Kuwata-Gonokami, Relaxation expolsion of a quantum degenerate exciton gas in Cu2O, New J. Phys. 14, 055024 (2012).
2011
N. Kanda, T. Higuchi, H. Shimizu, K. Konishi, K. Yoshioka, M. Kuwata-Gonokami, The vectorial control of magnetization by light, Nature Commun. 2 : 362 (2011).
K. Yoshioka, E. Chae, and M. Kuwata-Gonokami, Transition to a Bose-Einstein condensate and relaxation explosion of excitons at sub-Kelvin temperatures, Nature Commun. 2 : 328 (2011).
2010
K. Yoshioka, T. Ideguchi, and M. Kuwata-Gonokami, Quantum inelastic collisions between paraexcitons in Cu2O, Phys. Rev. B 82, 041201(R) (2010).
2009
J. Omachi, N. Naka, K. Yoshioka, and M. Kuwata-Gonokami, Formation control of electron-hole droplets in diamond by a weak pulse injection, J. Phys. C, 148, 012051 (2009).
2008
T. Ideguchi, K. Yoshioka, A. Mysyrowicz, and M. Kuwata-Gonokami, Coherent Quantum Control of Excitons at Ultracold and High Density in Cu2O with Phase Manipulated Pulses, Phys. Rev. Lett. 100, 233001 (2008).
2007
K. Yoshioka, T. Ideguchi, and M. Kuwata-Gonokami, Laser-based continuous-wave excitonic Lyman spectrosopy in Cu2O, Phys. Rev. B 76, 033204 (2007).
K. Yoshioka and M. Kuwata-Gonokami, Dark excitons in Cu2O crystals for two-photon coherence storage in semiconductors, Phys. Rev. B 73, 081202(R) (2006).
2005
M. Kubouchi, K. Yoshioka, R. Shimano, A. Mysyrowicz, and M. Kuwata-Gonokami, Study of Orthoexciton-to-Paraexciton Conversion in Cu2O by Excitonic Lyman Spectroscopy, Phys. Rev. Lett. 94, 016403 (2005).
2022 K. Shu, R. Uozumi, Y. Tajima, K. Yoshioka, E. Chae, T. Namba, A. Ishida, S. Asai, M. Kuwata-Gonokami, N. Oshima, B. E. O'Rourke, K. Michishio, K. Ito, K. Kumagai, R. Suzuki, S. Fujino, K. Wada, I. Mochizuki, T. Hyodo, and T. Kai,
“Experimental progress towards measuring antimatter gravity usinig positronium”,
23rd International Conference on General Relativity and Gravitation (GR23), hybrid, Liyang, China (5 July, 2022)(Oral)
Y. Tajima, K. Yamada, T. Kobayashi, A. Ishida, T. Namba, S. Asai, E. Chae, K. Shu, K. Yoshioka,
“Development of a deep-ultraviolet chirped pulse laser for Doppler cooling of positronium”,
The 27th International Conference on Atomic Physics (ICAP2022), Toronto, Canada (18 July, 2022)(Poster)
R. Uozumi, Y. Tajima, T. Kobayashi, K. Shu, K. Yoshioka,
“Developing a high-resolution Doppler broadening spectroscopy for cold positronium”,
The 27th International Conference on Atomic Physics (ICAP2022), Toronto, Canada (18 July, 2022)(Poster)
T. Sakamoto, K. Yoshioka,
“Observation of two-photon induced fluorescence of neutral carbon atom gases”,
The 27th International Conference on Atomic Physics (ICAP2022), Toronto, Canada (19 July, 2022)(Poster)
A. Ishida, R. W. Gladen, T. Namba, S. Asai, M. Kuwata-Gonokami, Y. Tajima, T. Kobayashi, R. Uozumi, K. Shu, E. Chae, K. Yoshioka, N. Oshima, B. E. O'Rourke, K. Michishio, K. Ito, K. Kumagai, R. Suzuki, S. Fujino, T. Hyodo, I. Mochizuki, K. Wada, T. Kai,
“Recent progress in positronium laser cooling"”,
19th International Conference on Positron Annihilation (ICPA-19), online (24 August, 2022)(Oral)
2021 T. Sakamoto, and K. Yoshioka,
“Chirped Pulse Amplification of 1.6 GHz Ti:Sapphire Frequency Comb Using
a Tapered Semiconductor Amplifier”,
2021 Conference on Lasers and Electro-Optics/Europe – European Quantum
Electronics Virtual Conferences (CLEO/Europe-EQEC 2021), all-virtual (24
June, 2021) (Oral)
Y. Tajima, K. Yamada, T. Kobayashi, R. Uozumi, A. Ishida, T. Namba, S.
Asai, M. Kuwata-Gonokami, K. Shu, E. Chae, K. Yoshioka, N. Oshima, B.E.
O’Rourke, K. Michishio, K. Ito, K. Kumagai, R. Suzuki, S. Fujino, T. Hyodo,
I. Mochizuki, K. Wada and T. Kai,
“Development of a chirped pulse laser for cooling positronium”,
12.5th International Workshop on Positron and Positronium Chemistry (PPC 12.5), online (31 August, 2021)(Oral)
R. Uozumi, Y. Tajima, T. Kobayashi, K. Shu, E. Chae, K. Yoshioka, A. Ishida,
T. Namba, S. Asai, M. Kuwata-Gonokami, N. Oshima, B.E. O’Rourke, K. Michishio,
K. Ito, K. Kumagai, R. Suzuki, S. Fujino, T. Hyodo, I. Mochizuki, K. Wada
and T. Kai,
“Development of a High-Resolution Probing Laser Suited for Cold Positronium
Spectroscopy”,
12.5th International Workshop on Positron and Positronium Chemistry (PPC
12.5), online (31 August, 2021)(Oral)
A. Ishida, K. Hashidate, T. Namba, S. Asai, M. Kuwata-Gonokami, Y. Tajima, T. Kobayashi, R. Uozumi, K. Shu, E. Chae, K. Yoshioka, N. Oshima, B.E. O’Rourke, K. Michishio, K. Ito, K. Kumagai, R. Suzuki, S. Fujino, T. Hyodo, I. Mochizuki, K. Wada and T. Kai,
“Dense positronium formation for Bose-Einstein condensation”,
12.5th International Workshop on Positron and Positronium Chemistry (PPC
12.5), online (31 Aughst, 2021)(Oral)
K. Shu, K. Yamada, K. Hashidate, A. Ishida, T. Namba, S. Asai, M. Kuwata-Gonokami,
Y. Tajima, E. Chae, K. Yoshioka, N. Oshima, B.E. O’Rourke, K. Michishio,
K. Ito, K. Kumagai, R. Suzuki, S. Fujino, T. Hyodo, I. Mochizuki, K. Wada
and T. Kai,
“Enhanced decay and line broadening of 2P ortho-positronium inside silica pores”,
12.5th International Workshop on Positron and Positronium Chemistry (PPC 12.5), online (3 September, 2021)(Oral)
2020 Y. Tajima, K. Yamada, K. Shu, A. Ishida, S. Asai, M. Kuwata-Gonokami,
E. Chae, and K. Yoshioka,
“Development of a Sub-microsecond Broadband Pulsed Laser for Cooling Positronium”, Conference on Lasers and Electro-Optics 2020 (CLEO 2020), all-virtual
(14 May, 2020) (Poster)
2019K. Yamada, K. Shu, K. Hashidate, A. Ishida, T. Namba, S. Asai, M. Kuwata-Gonokami, Y. Tajima, E. Chae, K. Yoshioka, N. Oshima, B. E. O’Rourke, K. Michishio, K. Ito, K. Kumagai, R. Suzuki, S. Fujino, T. Hyodo, I. Mochizuki, K. Wada,
“Recent Progress towards Positronium Bose-Einstein Condensation”, The 11th International Workshop on Fundamental Physics Using Atoms (FPUA2019), Okinawa, Japan (29 March, 2019) (Oral)
Y. Chen, M. Horikoshi, K. Yoshioka, and M. Kuwata-Gonokami,
“Spontaneously Created Attractive Bose-Einstein Condensates and Their Critical
Behaviors”, 50th Annual Meeting of the APS Division of Atomic, Molecular and Optical
Physics APS Meeting, Wisconsin, USA (30 May, 2019) (Oral)
E. Chae, K. Nakashima, T. Ikeda, K. Sugiyama, and K. Yoshioka,
“Stabilizing a Ti:Sapphire optical frequency comb with 10-19 relative fractional
instability through an optical fiber network”, OSK-OSA-OSJ Joint Symposium 2019, Busan, Korea (16, July, 2019) (invited)
A. Ishida, K. Shu, K. Yamada, K. Hashidate, T. Namba, S. Asai, M. Kuwata-Gonokami,
Y. Tajima, E. Chae, K. Yoshioka, N. Oshima, B. E. O’Rourke, K. Michishio,
K. Ito, K. Kumagai, R. Suzuki, S. Fujino, T. Hyodo, I. Mochizuki, K. Wada
and T. Kai,
“Experimental progress towards positronium Bose-Einstein condensation”, 8th International Conference on New Frontiers in Physics (ICNFP 2019), Creta, Greece (26 August, 2019) (Oral)
A. Ishida, K. Shu, K. Yamada, K. Hashidate, T. Namba, S. Asai, M. Kuwata-Gonokami, Y. Tajima, E. Chae, K. Yoshioka, N. Oshima, B. E. O’Rourke, K. Michishio, K. Ito, K. Kumagai, R. Suzuki, S. Fujino, T. Hyodo, I. Mochizuki, K. Wada and T. Kai,
“Recent progress towards positronium Bose-Einstein condensation”, 15th International Workshop on Positron Beam Techniques and Applications
(SLOPOS-15), Prague, Czech Republic (2 September, 2019) (Oral)
E. Chae, E. Kambe, K. Motohara, H. Izumiura, M. Doi, and K. Yoshioka,
“A compact green Ti:Sapphire astro-comb with 43 GHz repetition rate”, KPS Fall meeting, Gwangju, Korea (24, October, 2019) (invited)
K. Yamada, K. Shu, K. Hashidate, A. Ishida, T. Namba, S. Asai, M. Kuwata-Gonokami,
Y. Tajima, E. Chae, K. Yoshioka, N. Oshima, B. E. O’Rourke, K. Michishio,
K. Ito, K. Kumagai, R. Suzuki, S. Fujino, T. Hyodo, I. Mochizuki, K. Wada,
T. Kai,
“Development of cooling laser for positronium Bose-Einstein condensation”, 4th Japan-China Joint Workshop on Positron Science (JWPS 2019), Nara, Japan (1 November, 2019) (Oral)
K. Hashidate, K. Shu, K. Yamada, A. Ishida, T. Namba, S. Asai, M. Kuwata-Gonokami,
Y. Tajima, E. Chae, K. Yoshioka, N. Oshima, B. E. O’Rourke, K. Michishio,
K. Ito, K. Kumagai, R. Suzuki, S. Fujino, T. Hyodo, I. Mochizuki, K. Wada,
T. Kai,
“Development of focusing lens for high-density positron beam”, 4th Japan-China Joint Workshop on Positron Science (JWPS 2019), Nara,
Japan (1 November, 2019) (Oral)
K. Shu, K. Yamada, K. Hashidate, A. Ishida, T. Namba, S. Asai, M. Kuwata-Gonokami, Y. Tajima, E. Chae, K. Yoshioka, N. Oshima, B. E. O’Rourke, K. Michishio, K. Ito, K. Kumagai, R. Suzuki, S. Fujino, T. Hyodo, I. Mochizuki, K. Wada, T. Kai,
“Excitation of positronium by laser for efficient cooling”, 4th Japan-China Joint Workshop on Positron Science (JWPS 2019), Nara,
Japan (1 November, 2019) (Oral)
A. Ishida, K. Shu, K. Yamada, K. Hashidate, T. Namba, S. Asai, M. Kuwata-Gonokami,
Y. Tajima, E. Chae, K. Yoshioka, N. Oshima, B. E. O’Rourke, K. Michishio,
K. Ito, K. Kumagai, R. Suzuki, S. Fujino, T. Hyodo, I. Mochizuki, K. Wada,
T. Kai,
“Experimental progress towards positronium Bose-Einstein condensation”, 4th Japan-China Joint Workshop on Positron Science (JWPS 2019), Nara, Japan (1 November, 2019) (Oral)
N. Tsuji, W. Ootani, L. Liu, K. Yoshioka, Y. Morita, and M. Kuwata-Gonokami,
“Study on saturation of SiPM for scintillator calorimeter using UV laser”, Calorimeter for the High Energy Frontier 2019 (CHEF2019), Fukuoka, Japan (26 November, 2019) (Oral)
2018 E. Chae, T. Ikeda, K. Nakashima, K. Sugiyama, T. Takano, I. Ushijima,
N. Ohmae, T. Akatsuka, H. Katori, M. Kuwata-Gonokami, and K. Yoshioka,
“An optical frequency comb stabilized to an optical lattice clock laser
through optical fiber networks”, The 26th International Conference on Atomic Physics (ICAP2018), Barcelona,
Spain (23 July, 2018) (Poster)
K. Nakashima, T. Ikeda, E. Chae, T. Takano, I. Ushijima, N. Ohmae, T. Akatsuka,
H. Katori, M. Kuwata- Gonokami, and K. Yoshioka,
“Cross-correlation measurement between two Ti:Sapphire optical frequency
combs referencing a clock laser transferred via an optical fiber link”, The 26th International Conference on Atomic Physics (ICAP2018), Barcelona,
Spain (24 July, 2018) (Poster)
Akira Ishida,K. Shu, K. Yamada, T. Namba, S. Asai, E. Chae, K. Yoshioka,
M. Kuwata-Gonokami, N. Oshima, Michishio, K. Ito, K. Kumagai, R. Suzuki,
S. Fujino, T. Hyodo, I. Mochizuki, K. Wada, and K. Kawai,
“Positron focusing system and positronium thermalization measurement for realizing positronium Bose-Einstein condensation”, 18th International Conference on Positronium Annihilation (ICPA-18), Orland, USA (22, August, 2018) (Oral)
K. Shu, K. Yamada, A. Ishida, T. Namba, S. Asai, E. Chae, K. Yoshioka, M. Kuwata-Gonokami, N. Oshima, B. E. O’Rourke, K. Michishio, K. Ito, K. Kumagai, R. Suzuki, S. Fujino, T. Hyodo, I. Mochizuki, K. Wada, and K. Kawai,
“Development of cooling system for positronium”, 18th International Conference on Positronium Annihilation (ICPA-18),
Orland, USA (22, August, 2018) (Oral)
E. Chae, E. Kambe, K. Motohara, H. Izumiura, M. Doi, and K. Yoshioka,
“A compact astro-comb with 43 GHz repetition rate”, Chile-Japan Academic Forum 2018 Astronomy and Astronomical Instrumentation,
Nikko, Japan (27, September, 2018) (invited)
2017S. Kamioka, X. Fan, T. Inada, T. Yamazaki, T. Namba, S. Asai, J. Omachi,
K. Yoshioka, M. Kuwata-Gonokami, A. Matsuo, K. Kindo, H. Nojiri,
“Search for Vacuum Magnetic Birefringence with Pulsed Magnets”, 9th International Workshop of Fundamental Physics Using Atoms, Kyoto, Japan (10, January, 2017) (Oral)
S. Kamioka, X. Fan, T. Inada, T. Yamazaki, T. Namba, S. Asai, J. Omachi,
K. Yoshioka, M. Kuwata-Gonokami, A. Matsuo, K. Kindo, and H. Nojiri,
“Search for Vacuum Magnetic Birefringence with Pulsed Magnets”, Light driven Nuclear-Particle physics and Cosmology 2017 (LNPC’17), Pacifico Yokohama, Japan (April, 2017) (Oral)
K. Shu, T. Murayoshi, A. Ishida, T. Namba, S. Asai, K. Yoshioka, M. Kuwata-Gonokami,
N. Oshima, B. E. O’Rourke, R. Suzuki,
“Toward a Realization of Bose-Einstein Condensation of Positronium”, 2nd Jagiellonian Symposium on Fundamental and Applied Subatomic Physics,
Krakow, Poland (6, June, 2017) (Oral)
A. Ishida, K. Shu, T. Murayoshi, X. Fan, T. Namba, S. Asai, K. Yoshioka, M. Kuwata-Gonokami, N. Oshima, B. E. O’Rourke, R. Suzuki,
“Study on positronium Bose-Einstein condensation”, The 3rd China-Japan Joint Workshop on Positron Science (JWPS2017), Hefei,
China (9, June, 2017) (Oral)
Y. Morita, K. Yoshioka, H. Suzuki, E. Chae, M. Kuwata-Gonokami,
“Lyman absorption imaging of quantum degenerate excitons in Cu2O”, Fundamental Optical Processes in Semiconductors (FOPS) 2017, Stevenson,
USA (31, August, 2017) (Poster)
2016Y. Morita, K. Yoshioka, M. Kuwata-Gonokami,
“Lyman induced absorption imaging of very cold excitons in cuprous oxide
using a dilution refrigerator”, The Eighth International Conference on Spontaneous Coherence in Excitonic
Systems (ICSCE8), Edinburgh, United Kingdom (25, April, 2016) (Oral)
A. Ishida, K. Shu, T. Murayoshi, X. Fan, T. Yamazaki, T. Namba, S. Asai, K. Yoshioka, and M. Kuwata‐Gonokami,
“Monte Carlo Simulation of Positronium Cooling for Bose-Einstein Condensation”, 14th International Workshop on Slow Positron Beam Techniques & Applications (SLOPOS14), Shimane, Japan (24, May, 2016) (Poster)
K. Shu, T. Murayoshi, X. Fan, A. Ishida, T. Yamazaki, T. Namba, S. Asai,
K. Yoshioka, M. Kuwata-Gonokami, N. Oshima, B. E. O’Rourke, R. Suzuki,
“Study on Bose-Einstein Condensation of Positronium”, 14th International Workshop on Slow Positron Beam Techniques & Applications
(SLOPOS14), Shimane, Japan (24, May, 2016) (Oral)
K. Yoshioka,
“Mid-infrared absorption imaging of a quantum degenerate exciton gas in
cuprous oxide at 100 mK”, 19th International Conference on Dynamical Processes in Excited States
of Solids (DPC’16), Paris, France (22, July, 2016) (invited)
2015K. Yoshioka,
“Excitons in Cu2O: towards a stable Bose-Einstein condensate of bulk excitons at sub-Kelvin temperatures”, International Winter School on the Physics of Indirect Excitons and Polaritons, Les Houches, France (March 2015) (invited lecture)
Y. Morita, H. Suzuki, K. Yoshioka, and M. Kuwata-Gonokami,
“Luminescence and Lyman spectroscopy of excitons in Cu2O using a diluteion refrigerator”, International Winter School devoted to the Indirect Excitons, Les Houches,
France (March 2015) (poster)
H. Suzuki, Y. Morita, K. Yoshioka, and M. Kuwata-Gonokami,
“Space- and time- resolved luminescence spectroscopy of trapped excitons
at sub-K temperature in cuprous oxide”, International Winter School devoted to the Indirect Excitons, Les Houches,
France (March 2015) (poster)
K. Yoshioka, E. Chae, and M. Kuwata-Gonokami,
“Absorption imaging of 1s paraexcitons in a strain-induced trap in Cu2O using excitonic 1s-2p transitions”, Fundamental optical processes in semiconductors (FOPS)-2015, Breckenridge, USA (August 6, 2015) (poster)
Y. Morita, H. Suzuki, K. Yoshioka and M. Kuwata-Gonokami,
“Lyman spectroscopy of quantum degenerate excitons in Cu2O”, Fundamental optical processes in semiconductors (FOPS)-2015, Breckenridge,
USA (August 6, 2015) (poster)
H. Suzuki, Y. Morita, K. Yoshioka, and M. Kuwata-Gonokami,
“Cooling dynamics of trapped paraexcitons in Cu2O at sub-Kelvin temperatures”, Fundamental optical processes in semiconductors (FOPS)-2015, Breckenridge,
USA (August 6, 2015) (poster)
K. Yoshioka,
“Quest for Bose-Einstein condensation of a gas of dark excitons at 100 mK”, 12th US-Japan Seminar: Many body quantum systems from quantum gases to metrology and information processing, Madison, USA (23, September, 2015) (invited)
Y. Morita, H. Suzuki, K. Yoshioka, and M. Kuwata-Gonokami,
“Lyman absorption imaging of quantum degenerate excitons in Cu2O”, 12th US-Japan Seminar: Many body quantum systems from quantum gases
to metrology and information processing, Madison, USA (23, September, 2015)
(Poster)
X. Fan, S. Kamioka, T. Inada, T. Yamazaki, T. Namba, S. Asai, J. Omachi, K. Yoshioka, M. Kuwata-Gonokami,
“Search for Vacuum Magnetic Birefringence with Pulsed Magnet”, 8th international Workshop on Fundamental Physics Using Atoms (FUPA2015),
RIKEN, Japan (1, December, 2015) (Oral)
K. Shu, X. Fan, T. Yamazaki, T. Namba, S. Asai, K. Yoshioka, M. Kuwata-Gonokami,
“Study on Cooling of Positronium for Bose-Einstein Condensation”, 8th international Workshop on Fundamental Physics Using Atoms (FUPA2015), RIKEN, Japan (1, December, 2015) (Oral)
Chen Yiping, 堀越宗一, 吉岡孝高, 五神真
「Approaching towards a “textbook” ideal Bose gas near condensate temperature
in an harmonic trap」 日本物理学会第75回年次大会，名古屋大学，2020-3-17（口頭，現地開催中止）
Y. Chen, M. Horikoshi, K. Yoshioka, M. Kuwata-Gonokami “Formation and critical behaviors of sympathetically cooled attractive Bose-Einstein condensation” 日本物理学会第７２回年次大会, 大阪大学, 2017-03 (口頭)
