Publications

• • • Y. Minowa, Y. Yasui, T. Nakagawa, S. Inui, M. Tsubota, M. Ashida
      "Direct excitation of Kelvin waves on quantized vortices"
      arXiv:2402.16411 [cond-mat.quant-gas]
      https://doi.org/10.48550/arXiv.2402.16411

    • Y. Makino, Y. Saito, Y. Minowa, A. Tsurui, Y. Kishino, T. Kouuchi, Y. Takeuchi, G. Yamagishi, M. Ashida
      "Optical properties of negatively charged germanium-vacancy centers in detonation nanodiamonds with an average single-digit nanometer particle size"
      Japanese Journal of Applied Physics 63 035003 (2024).
      https://iopscience.iop.org/article/10.35848/1347-4065/ad2d0c
      Download pdf file

    • Y. Minowa, K. Kato, S. Ueno, T. W. Penny, A. Pontin, M. Ashida, P. F. Barker
      “Imaging based feedback cooling of a levitated nanoparticle,”
      Review of Scientific Instruments 93, 075109 (2022).
      https://aip.scitation.org/doi/10.1063/5.0095614
      Code example: https://github.com/minowayosuke/high_fps_camera_feedback
      Download pdf file (This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing).

    • Y. Minowa, S. Aoyagi, S. Inui, T. Nakagawa, G. Asaka, M. Tsubota, M. Ashida
      "Visualization of quantized vortex reconnection enabled by laser ablation,"
      Science Advances, 8, eabn1143 (2022). (open access)
      https://www.science.org/doi/10.1126/sciadv.abn1143
      Download pdf file

    • Y. Minowa, X. Geng, K. Kokado, K. Sato, T. Kameyama, T. Torimoto, M. Ashida
      “Optical trapping of nanoparticles in superfluid helium,”
      Optica 9, 139-144 (2022).  (open access)
      https://doi.org/10.1364/OPTICA.447557
      Download pdf file (© 2022 Optica Publishing Group under the terms of the Open Access Publishing Agreement. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved)

    • Y. Minowa, S. Kuramoto, T. Kameyama, T. Torimoto, M. Ashida,

"Synthesis of submicron-sized CdS particles using reverse micelles,"

Journal of Nanophotonics, 14, 26013 (2020).

https://doi.org/10.1117/1.JNP.14.026013
Download pdf file (Copyright 2020 Society of Photo‑Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this publication for a fee or for commercial purposes, and modification of the contents of the publication are prohibited.)

• • • T. Morimoto, M. Nagai, Y. Minowa, M. Ashida, Y. Yokotani, Y. Okuyama, Y. Kani,

"Microscopic ion migration in solid electrolytes revealed by terahertz time-domain spectroscopy,"

Nature Communications, 10, 2662 (2019).

https://doi.org/10.1038/s41467-019-10501-9
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• • • Y. Minowa, T. Suzuki, K. Setoura, S. Ito, H. Miyasaka, M. Ashida,

"Single-particle photoluminescence from cadmium selenide quantum dots fabricated via laser ablation in superfluid helium,"

Journal of Nanophotonics, 13, 12506 (2018).

https://doi.org/10.1117/1.JNP.13.012506
Download pdf file (Copyright 2018 Society of Photo‑Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this publication for a fee or for commercial purposes, and modification of the contents of the publication are prohibited.)

• • • M. Ashida, Y. Minowa, M. Kumakura, Y. Moriwaki,

"Optical fabrication and trapping of microspheres in cryogenic conditions,"

2017 OPJ-OSA Joint Symposia on Nanophotonics and Digital Photonics, None, 30aON2 (2018).

https://www.osapublishing.org/abstract.cfm?uri=opj-2017-30aON2&origin=search

• • • Y. Minowa, T. Suzuki, K. Setoura, S. Ito, H. Miyasaka, M. Ashida,

"Fabrication of cadmium selenide quantum dots with laser ablation in superfluid helium,"

Proc. SPIE 10712, Optical Manipulation Conference, None, 107120N (2018).

https://doi.org/10.1117/12.2319016

• • • M. Ashida, Y. Minowa, M. Kumakura, Y. Takahashi, F. Matsushima, Y. Moriwaki,

"Fabrication of Superconducting Micro Particles by Laser Ablation in Superfluid Helium,"

Conference on Lasers and Electro-Optics, None, STh1J.4 (2017).

https://doi.org/10.1364/CLEO_SI.2017.STh1J.4

• • • M. Ashida, Y. Minowa, M. Kumakura, Y. Takahashi, F. Matsushima, Y. Moriwaki,

"Optical fabrication and trapping of superconducting nanoparticles in superfluid helium,"

Proc. SPIE. 10347, Optical Trapping and Optical Micromanipulation XIV, None, 103471X (2017).

https://dx.doi.org/10.1117/12.2273278

• • • Y. Minowa, Y. Toyota, M. Ashida,

"In situ tuning of whispering gallery modes of levitated silica microspheres,"

Journal of the Optical Society of America B, 34, C20 (2017).

https://doi.org/10.1364%2Fjosab.34.000c20
Download pdf file (© 2017 Optica Publishing Group. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited.)

• • • Y. Minowa, Y. Oguni, M. Ashida,

"Inner structure of ZnO microspheres fabricated via laser ablation in superfluid helium,"

Optics Express, 25, 10449 (2017).

https://doi.org/10.1364%2Foe.25.010449
Download pdf file (© 2017 Optica Publishing Group under the terms of the Open Access Publishing Agreement. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved)

• • • Y. Minowa, Y. Oguni, M. Ashida,

"Fabrication of semiconductor microspheres with laser ablation in superfluid helium,"

Proc. SPIE 10252, Optical Manipulation Conference, None, 102520N (2017).

https://doi.org/10.1117%2F12.2274888

• • • H. Fujiwara, T. Kiss, Y. K. Wakabayashi, Y. Nishitani, T. Mori, Y. Nakata, S. Kitayama, K. Fukushima, S. Ikeda, H. Fuchimoto, Y. Minowa, S. Mo, J. D. Denlinger, J. W. Allen, P. Metcalf, M. Imai, K. Yoshimura, S. Suga, T. Muro, A. Sekiyama,

"Soft X-ray angle-resolved photoemission with micro-positioning techniques for metallic V2O3,"

Journal of Synchrotron Radiation, 22, 776 (2015).

https://doi.org/10.1107%2Fs1600577515003707

• • • M. Nagai, Y. Kamon, E. Matsubara, Y. Minowa, M. Ashida,

"Pulse shaping of the intense few-cycle terahertz pulses for nonlinear spectroscopy,"

Proc. SPIE 9361, Ultrafast Phenomena and Nanophotonics XIX, None, 936107 (2015).

https://doi.org/10.1117%2F12.2079005

• • • S. Okamoto, S. Ichikawa, Y. Minowa, M. Ashida,

“Lasing properties of semiconductor microspheres with high sphericity fabricated by laser ablation in superfluid helium,”

2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference, CE_11_5 (2015).

• • • Y. Minowa, R. Kawai, M. Ashida,

"Optical levitation of a microdroplet containing a single quantum dot,"

Optics Letters, 40, 906 (2015).

https://doi.org/10.1364%2Fol.40.000906
Download pdf file (© 2015 Optica Publishing Group under the terms of the Open Access Publishing Agreement. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved)

• • • M. Nagai, N. Mukai, Y. Minowa, M. Ashida, T. Suzuki, J. Takayanagi, H. Ohtake,

"Achromatic wave plate in THz frequency region based on parallel metal plate waveguides with a pillar array,"

Optics Express, 23, 4641 (2015).

https://doi.org/10.1364%2Foe.23.004641
Download pdf file (© 2015 Optica Publishing Group under the terms of the Open Access Publishing Agreement. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved)

• • • S. Okamoto, S. Ichikawa, Y. Minowa, M. Ashida,

"Fabrication and Lasing Properties of Single-Crystalline Semiconductor Microspheres with Anisotropic Crystal Structures,"

MRS Proceedings, 1736, 70 (2015).

https://doi.org/10.1557%2Fopl.2015.103

• • • N. Mukai, M. Nagai, Y. Minowa, M. Ashida, J. Takayanagi, H. Ohtake,

"Achromatic THz wave plate composed of stacked parallel metal plates with a pillar array,"

2014 39th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz), None, 1 (2014).

https://doi.org/10.1109%2Firmmw-thz.2014.6956344

• • • S. Okamoto, S. Ichikawa, Y. Minowa, M. Ashida,

"Optical Fabrication of Semiconductor Single-Crystalline Microspheres in Superfluid Helium,"

MRS Proceedings, 1635, 103 (2014).

https://doi.org/10.1557%2Fopl.2014.100

• • • N. Mukai, M. Nagai, Y. Minowa, M. Ashida,

"Achromatic THz wave plate based on the structured parallel metal plates,"

2013 38th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), None, 1 (2013).

https://doi.org/10.1109%2Firmmw-thz.2013.6665875

• • • M. Nagai, Y. Kamon, Y. Minowa, E. Matsubara, M. Ashida,

"Coherent transitions in doped-germanium using intense few-cycle THz pulses,"

2013 Conference on Lasers and Electro-Optics Pacific Rim (CLEOPR), None, 1 (2013).

https://doi.org/10.1109%2Fcleopr.2013.6599986

• • • M. Nagai, Y. Kamon, Y. Minowa, E. Matsubara, M. Ashida,

"Coherent transitions between the shallow acceptor levels in germanium using intense THz pulses,"

New Journal of Physics, 15, 65012 (2013).

https://doi.org/10.1088%2F1367-2630%2F15%2F6%2F065012
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• • • M. Nagai, E. Matsubara, Y. Minowa, M. Ashida,

"Carrier envelope phase control of monocycle THz pulses using an artificial dispersive medium,"

2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference CLEO EUROPE/IQEC, None, 1 (2013).

https://doi.org/10.1109%2Fcleoe-iqec.2013.6800804

• • • M. Nagai, N. Mukai, Y. Minowa, M. Ashida, J. Takayanagi, H. Ohtake,

"Achromatic THz wave plate composed of stacked parallel metal plates,"

Optics Letters, 39, 146 (2013).

https://doi.org/10.1364%2Fol.39.000146

• • • M. Nagai, M. Kimura, Y. Minowa, M. Ashida,

"Phase compensation in THz frequency region using the mirror with metal disk array,"

2012 37th International Conference on Infrared, Millimeter, and Terahertz Waves, None, 1 (2012).

https://doi.org/10.1109%2Firmmw-thz.2012.6380304

• • • S. Okamoto, Y. Minowa, M. Ashida,

"White-light lasing in ZnO microspheres fabricated by laser ablation,"

Proc. SPIE 8263, Oxide-based Materials and Devices III, None, 82630K (2012).

https://doi.org/10.1117%2F12.907595

• • • Y. Minowa, M. Nagai, H. Tao, K. Fan, A. C. Strikwerda, X. Zhang, R. D. Averitt, K. Tanaka,

"Extremely Thin Metamaterial as Slab Waveguide at Terahertz Frequencies,"

IEEE Transactions on Terahertz Science and Technology, 1, 441 (2011).

https://doi.org/10.1109%2Ftthz.2011.2167832

• • • M. Shimizu, Y. Shimotsuma, M. Sakakura, T. Yuasa, H. Homma, Y. Minowa, K. Tanaka, K. Miura, K. Hirao,

"Periodic metallo-dielectric structure in diamond,"

Optics Express, 17, 46 (2009).

https://doi.org/10.1364/OE.17.000046
Download pdf file (© 2009 Optica Publishing Group under the terms of the Open Access Publishing Agreement. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved)

• • • Y. Minowa, T. Fujii, M. Nagai, T. Ochiai, K. Sakoda, K. Hirao, K. Tanaka,

"Evaluation of effective electric permittivity and magnetic permeability in metamaterial slabs by terahertz time-domain spectroscopy,"

Optics Express, 16, 4785 (2008).

https://doi.org/10.1364%2Foe.16.004785
Download pdf file (© 2008 Optica Publishing Group under the terms of the Open Access Publishing Agreement. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved)

• • • Y. Minowa, M. Nagai, K. Tanaka, T. Fujii, K. Hirao,

"Evaluation of Effective Electric Permittivity and Magnetic Permeability in Metamaterial Parallel Slab and Importance of the Skin Effect,"

Photonic Metamaterials: From Random to Periodic 2007, None, TuB35 (2007).

https://doi.org/10.1364%2Fmeta.2007.tub35

• • • Y. Minowa, T. Nishihara, K. Hosoki, K. Tanaka,

"Extraordinary Transmission of Terahertz Electromagnetic Waves through 2-Dimensional Metallic Photonic Crystal,"

Photonic Metamaterials: From Random to Periodic 2006, None, ThD23 (2006).

https://doi.org/10.1364%2Fmeta.2006.thd23