Publications

Papers

1. Katsumasa Yoshioka, Yasuo Minami, Ken-ichi Shudo, Thang D. Dao, Tadaaki Nagao, Masahiro Kitajima, Jun Takeda, and Ikufumi Katayama, “Terahertz-Field-Induced Nonlinear Electron Delocalization in Au Nanostructures”,
Nano Letters 15, 1036-1040 (2015).

2. Katsumasa Yoshioka, Ikufumi Katayama, Yasuo Minami, Masahiro Kitajima, Shoji Yoshida, Hidemi Shigekawa, and Jun Takeda, “Real-space coherent manipulation of electrons in a single tunnel junction by single-cycle terahertz electric fields”,
Nature Photonics 10, 762–765 ).

3. Jun Takeda, Katsumasa Yoshioka, Yasuo Minami, and Ikufumi Katayama,
“Nanoscale electron manipulation in metals with intense THz electric fields”,
Journal of Physics D: Applied Physics 51, 103001 (2018).

4. Xinwei Li, Motoaki Bamba, Qi Zhang, Saeed Fallahi, Geoff C. Gardner, Weilu Gao, Minhan Lou, Katsumasa Yoshioka, Michael J. Manfra, and Junichiro Kono
“Vacuum Bloch-Siegert Shift in Landau Polaritons with Ultrahigh Cooperativity”,
Nature Photonics 12, 324–329 (2018).

5. Katsumasa Yoshioka, Ikufumi Katayama, Yusuke Arashida, Atsuhiko Ban, Yoichi Kawada, Kuniaki Konishi, Hironori Takahashi, and Jun Takeda, “Tailoring single-cycle near field in a tunnel junction with carrier-envelope phase-controlled terahertz electric fields“,
Nano Letters 18, 5198–5204 (2018).

6. Yoichi KawadaKatsumasa YoshiokaYusuke ArashidaIkufumi Katayama, Jun Takeda, and Hironori Takahashi,
Simultaneous acquisition of complex transmittance and birefringence with two counter-rotating circularly polarized THz pulses”,
Optics Express, 26, 30420-30434 (2018).

Conference Proceedings

1. Katsumasa Yoshioka, Yasuo Minami, Ken-ichi Shudo, Thang D. Dao, Tadaaki Nagao, Masahiro Kitajima, Jun Takeda, and Ikufumi Katayama, ”Nonlinear Response of Au Nanostructures Observed with Intense THz Pulses”, 39th International Conference on Infrared and Millimeter and Terahertz Waves (IRMMW-THz 2014),
Paper T5-P16.4, Tucson, USA, Sep. 2014.

2. Katsumasa Yoshioka, Ikufumi Katayama, Yasuo Minami, Masahiro Kitajima, Shoji Yoshida, Hidemi Shigekawa, and Jun Takeda, “Coherent Control Of The Motion Of Electrons In A Tunnel Junction Via Single-Cycle THz Electric Field”, 41th International Conference on Infrared and Millimeter and Terahertz Waves (IRMMW-THz 2016),
Paper W2E.2, Copenhagen, Denmark, Sep. 2016.

3. Katsumasa Yoshioka, Ikufumi Katayama, Yusuke Arashida, Yasuo Minami, Masahiro Kitajima, Shoji Yoshida, Hidemi Shigekawa, and Jun Takeda,  “Coherent Manipulation of Electrons in a Tunnel Junction with Carrier-Envelope Phase Controlled THz Electric Fields” 2017 Nonlinear Optics (2017 NLO)
Paper NW2A.3, Hawaii, USA, Jul. 2017

Presentation at International Conference

1. Katsumasa Yoshioka, Yasuo Minami, Ken-ichi Shudo, Thang D. Dao, Tadaaki Nagao, Masahiro Kitajima, Jun Takeda, and Ikufumi Katayama, ”Nonlinear Response of Au Nanostructures Observed with Intense THz Pulses”, 39th International Conference on Infrared and Millimeter and Terahertz Waves (IRMMW-THz 2014), Paper T5-P16.4, Tucson, USA, Sep. 2014. (Poster and Oral presentation), Best Student Paper/Presentation Award (2nd place) 

2. Katsumasa Yoshioka, Ikufumi Katayama, Yasuo Minami, Masahiro Kitajima, Shoji Yoshida, Hidemi Shigekawa, and Jun Takeda, “Real-Space Control of the Electron Transfer in a Tunnel Junction with Single-Cycle THz Electric Field”, Ultrafast Dynamics at the Nanoscale 2016, Okinawa, July. 2016. (Oral presentation)

3. Katsumasa Yoshioka, Ikufumi Katayama, Yasuo Minami, Masahiro Kitajima, Shoji Yoshida, Hidemi Shigekawa, and Jun Takeda, ”Coherent Control of the Motion of Electrons in a Tunnel Junction via Single-Cycle THz Electric Field”, 41th International Conference on Infrared and Millimeter and Terahertz Waves (IRMMW-THz 2016), Copenhagen, Denmark, Sep. 2016. (Oral presentation)

4. Katsumasa Yoshioka, Ikufumi Katayama, Yasuo Minami, Masahiro Kitajima, Shoji Yoshida, Hidemi Shigekawa, and Jun Takeda, “Ultrafast Manipulation of Electron Transfer in a Tunnel Junction using Carrier-Envelope Phase Controlled THz-STM”, 24th International Colloquium on Scanning Probe Microscopy (ICSPM24), Hawaii, USA, Dec. 2016. (Oral presentation)

5. Katsumasa Yoshioka, “Real-Space Coherent Manipulation of Electrons in a Single Tunnel Junction by Single-Cycle Terahertz Electric Fields”, The 2nd international symposium on Recent Trends in Analysis Techniques for Functional Materials and Devices, Osaka, Japan, Jan. 2017. (Invited talk)

6. Katsumasa Yoshioka, Ikufumi Katayama, Yusuke Arashida, Yasuo Minami, Masahiro Kitajima, Shoji Yoshida, Hidemi Shigekawa, and Jun Takeda, “Coherent Manipulation of Electrons in a Tunnel Junction with Carrier-Envelope Phase Controlled THz Electric Fields”, 2017 Nonlinear Optics (2017 NLO), Hawaii, USA, Jul. 2017 (Oral presentation)

7. Katsumasa Yoshioka, Ikufumi Katayama, Atsuhiko Ban, Yusuke Arashida, Yoichi Kawada, Hironori Takahashi, and Jun Takeda, “Sub-cycle THz control of electrons in a tunnel junction with a carrier-envelope phase shifter”, 8th International Symposium on Terahertz Nanoscience (TeraNano 8), Okayama, Japan, Nov. 2017 (Oral presentation)

8. Katsumasa Yoshioka, Ikufumi Katayama, Atsuhiko Ban, Yusuke Arashida, Yoichi Kawada, Hironori Takahashi, and Jun Takeda, “Sub-cycle control of THz near-field and electrons in a single tunnel junction”, Gordon Research Conference and Seminar (GRC/S) Ultrafast Phenomena in Cooperative Systems, Texas, USA, Feb. 2018 (Poster presentation), Discussion leader in GRS

9. Katsumasa Yoshioka, Ikufumi Katayama, Yusuke Arashida, Atsuhiko Ban, Yoichi Kawada, Hironori Takahashi, and Jun Takeda, “Sub-cycle Manipulation of Electrons in a Tunnel Junction with Phase-controlled Single-cycle THz Near-fields”, 21st International Conference on Ultrafast Phenomena (UP2018), Hamburg, Germany, Jul. 2018 (Oral presentation)

10. Katsumasa Yoshioka, Ikufumi Katayama, Yusuke Arashida, Atsuhiko Ban, Yoichi Kawada, Kuniaki Konishi, Hironori Takahashi, and Jun Takeda, “In-situ Tailoring of Single-cycle Near Field in a Tunnel Junction Using Phase-controlled THz-STM”, 14th International Conference on Atomically Controlled Surfaces, Interfaces and Nanostructures (ACSIN-14) in conjunction with 26th International Colloquium on Scanning Probe Microscopy (ICSPM26), Sendai, Japan, Nov. 2018 (Oral presentation)

Seminar

1. Friedrich-Alexander University Erlangan-Nuremburg (FAU), Erlangen, Germany, Oct. 2016

2. University of Regensburg, Regensburg, Germany, Oct. 2016