Optical Physics Laboratory, Department of Physics, Faculty of Science

Reconfigurable Terahertz Quarter-Wave Plate for Helicity Switching Based on Babinet Inversion of an Anisotropic Checkerboard Metasurface

Yosuke Nakata, Kai Fukawa, Toshihiro Nakanishi, Yoshiro Urade, Kunio Okimura, and Fumiaki Miyamaru
Phys. Rev. Appl. 11, 044008 (2019).

Terahertz emission from gold nanorods irradiated by ultrashort laser pulses of different wavelengths

Keisuke Takano, Motoki Asai, Kosaku Kato, Hideaki Komiyama, Akihisa Yamaguchi, Tomokazu Iyoda, Yuzuru Tadokoro, Makoto Nakajima and Michael I. Bakunov
Scientific Reports 9, Article number: 3280 (2019).

Quantized conductance observed during sintering of silver nanoparticles by intense terahertz pulses

K. Takano, H. Harada, M. Yoshimura, and M. Nakajima
Appl. Phys. Lett. vol. 112, no. 16, p. 163102 (2018).

Optical reflectance of patterned frost column-like CNT forest for metamaterial applications

H. Miyaji, A. Pander, K. Takano, H. Kohno, A. Hatta, M. Nakajima, and H. Furuta
Diam. Relat. Mater. Vol.  83, pp. 196-203 (2018).

Energy loss of terahertz electromagnetic waves by nano-sized connections in near-self-complementary metallic checkerboard patterns

Keisuke Takano, Yoku Tanaka, Gabriel Moreno, Abdallah Chahadih, Abbas Ghaddar, Xiang-Lei Hang, François Vaurette, Yosuke Nakata, Fumiaki Miyamaru, Makoto Nakajima, Masanori Hangyo, and Tahsin Akalin
Jour. Appl. Phys. 122, 063101 (2017).

Theoretical study on dynamical planar-chirality switching in checkerboard-like metasurfaces

Yoshiro Urade, Yosuke Nakata, Toshihiro Nakanishi, and Masao Kitano
EPJ Applied Metamaterials 4, 2 (2017).

Freestanding trasparent terahertz half-wave plate using subwavelength cut-wire pairs

Yosuke Nakata, Yudai Taira, Toshihiro Nakanishi, and Fumiaki Miyamaru
Optics Express 25, 2107 (2017).

Anisotropic Babinet-Invertible Metasurfaces to Realize Transmission-Reflection Switching for Orthogonal Polarizations of Light

Yosuke Nakata, Yoshiro Urade, Kunio Okimura, Toshihiro Nakanishi, Fumiaki Miyamaru, Mitsuo Wada Takeda, and Masao Kitano
Phys. Rev. Applied 6, 044022 (2016).

Broadband and energy-concentrating terahertz coherent perfect absorber based on a self-complementary metasurface

Yoshiro Urade, Yosuke Nakata, Toshihiro Nakanishi, and Masao Kitano
Optics Letters 41, 4472 (2016).

Supersymmetric correspondence in spectra on a graph and its line graph: From circuit theory to spoof plasmons on metallic lattices

Yosuke Nakata, Yoshiro Urade, Toshihiro Nakanishi, Fumiaki MIyamaru, Mitsuo Wada Takeda, and Masao Kitano
Physical Review A 93, 043853 (2016).

Observation of a nonradiative flat band for spoof plasmons in a metallic Lieb lattice

Sho Kajiwara, Yoshiro Urade, Yosuke Nakata, Toshihiro Nakanishi, and Masao Kitano
Physical Review B 93, 075126 (2016).

Observation of Fano resonance using a coupled resonator metamaterial composed of meta-atoms arranged by double periodicity

Tsubasa Nishida, Yosuke Nakata, Fumiaki Miyamaru, Toshihiro Nakanishi, and Mitsuo W. Takeda
Applied Physics Express 9, 012201 (2016).

Dynamically Babinet-invertible metasurface: a capacitive-inductive reconfigurable filter for terahertz waves using vanadium-dioxide metal-insulator transition

Yoshiro Urade, Yosuke Nakata, Kunio Okimura, Toshihiro Nakanishi, Fumiaki Miyamaru, Mitsuo W. Takeda, and Masao Kitano
Optics Express 24, 4405 (2016).

Frequency-Independent Response of Self-Complementary Checkerboard Screens

Yoshiro Urade, Yosuke Nakata, Toshihiro Nakanishi, and Masao Kitano
Physical Review Letters 114, 237401 (2015).

Trapping waves with terahertz metamaterial absorber based on isotropic Mie resonators

R. Yahiaoui, K. Hanai, K. Takano, T. Nishida, F. Miyamaru, M. Nakajima, and M. Hangyo
Optics Letters 40, 3197 (2015).

Crossover from capacitive to inductive electromagnetic responses in near self-complementary metallic checkerboard patterns

K. Takano, F. Miyamaru, K. Akiyama, H. Miyazaki, M. W. Takeda, Y. Abe, Y. Tokuda, H. Ito, and M. Hangyo
Optics Express 22, 24787 (2014).

Terahertz metamolecules deposited on thin flexible polymer: design, fabrication and experimental characterization

R. Yahiaoui, K. Takano, F. Miyamaru, M. Hangyo, and P. Mounaix
Journal of Optics 16, 094014 (2014).

Ultrafast optical control of group delay of narrow-band terahertz waves

F. Miyamaru, H. Morita, Y. Nishiyama, T. Nishida, T. Nakanishi, M. Kitano and M. W. Takeda
Scientific Reports 4, 4346 (2014).

Analysis and design of concave lens with metallic slit array for terahertz wave band

T. Suzuki, H. Yonamine, T. Konno, J. C. Young, K. Murai, F. Miyamaru, K. Takano, H. Kitahara, and M. Hangyo
Applied Physics A 115, 495 (2014).

Focusing effect measurements of artificial dielectric multilayer lens with metal rectangular chips for terahertz wave band

Y. Takebayashi, T. Konno, S. Shimada, F. Miyamaru, J. C. young, H. Kitahara, K. Takano, M. Hangyo, and T. Suzuki
Applied Physics A 115, 501 (2014).

Highly Sensitive Terahertz Sensing of Glycerol-Water Mixtures with Metamaterials

F. Miyamaru, K. Hattori, K. Shiraga, S. Kawashima, S. Suga, T. Nishida, M. W. Takeda, and Y. Ogawa
Journal of Infrared Millimeter and Terahertz Waves 35, 198 (2013).

Fabrication and performance of TiO2-ceramic-based metamaterials for terahertz frequency range

K. Takano, Y. Yakiyama, K. Shibuya, K. Izumi, H. Miyazaki, Y. Jimba,F. Miyamaru, H. Kitahara, and M. Hangyo
IEEE Transactions on Terahertz Science and Technology 3, 812 (2013).

Fast-Scan Terahertz Time Domain Spectrometer Based on Laser Repetition Frequency Modulation

T. Furuya, E. S. Estacio, K. Horita, C. T. Que, K. Yamamoto, F. Miyamaru, S. Nishizawa, and M. Tani
Japanese Journal of Applied Physics 52, 022401 (2013).

Saturation and Polarization Characteristics of 1.56 μm Optical Probe Pulses in a LTG-GaAs Photoconductive Antenna Terahertz Detector

Elmer S. Estacio, Masakazu Hibi, Katsuya Saito, Christopher T. Que, Takashi Furuya, Fumiaki Miyamaru, SeiziNishizawa, Kohji Yamamoto, Masahiko Tani
Journal of Infrared, Millimeter, and Terahertz Waves 34, 423 (2013).

Transmission properties of double-gap asymmetric split ring resonators in terahertz region

F. Miyamaru, S. Kubota, T. Nakanishi, S. Kawashima, N. Sato, M. Kitano, and M. W. Takeda
Applied Physics Letterss 101, 051112 (2012).

Terahertz response of split-ring resonators with fractal structures  
F. Miyamaru, S. Kuboda, and M. W. Takeda
Applied Physics Express 5, 072001 (2012).

Photoconductive emission and detection of terahertz pulsed radiation using semiconductors and semiconductor devices  
M. Tani , K. Yamamoto, E. S. Estacio, C. T. Que, H. Nakajima, M. Hibi, F. Miyamaru, S. Nishizawa, and M. Hangyo
Journal of Infrared, Millimeter, and Terahertz Waves 33, 393 (2012).

Controlling extraordinary transmission characteristics of metal hole arrays with spoof surface plasmons

F. Miyamaru, M. Kamijyo, N. Hanaoka, and M. W. Takeda
Applied Physics Letters 101, 081112 (2012).

Optical switching of terahertz radiation from meta-atom-loaded photoconductive antennas  
K. Takano, Y. Chiyoda, T. Nishida, F. Miyamaru, T. Kawabata, H. Sasaki, M. W. Takeda, and M. Hangyo
Applied Physics Letters 99, 161114 (2011).

Inelastic Neutron Scattering Study of Ferroelectric Phase Transition in Lithium Heptagermanate (Li2Ge7O15)  
M. W. Takeda, Y. Noda, and T. Yamaguchi
Ferroelectrics 412, 45-51 (2011).

Single-phase electrorheological effect in microgravity  
G. Zhao, S. Chen, W. Wen, F. Miyamaru, M. W. Takeda, J. Yu, and P. Sheng
Soft Matter 7, 7198 (2011).

Fano effect of metamaterial resonance in terahertz extraordinary transmission  
X. Xiao, W. Jinbo, F. Miyamaru, M. Zhang, S. Li, M. W. Takeda, W. Wen, and P. Sheng
Applied Physics Letters 98, 011911 (2011).



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