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Journal Articles

Terahertz radar with all-dielectric leaky-wave antenna

Harrison Lees, Daniel Headland, Shuichi Murakami, Masayuki Fujita, Withawat Withayachumnankul
Journal: APL Photonics
APL Photonics 9, 036107 (2024)
https://doi.org/10.1063/5.0180941
Published: March 2024
View article titled, Terahertz radar with all-dielectric leaky-wave antenna
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Includes: Supplementary data
Journal Articles

Terahertz integration platforms using substrateless all-silicon microstructures

Featured
Daniel Headland, Masayuki Fujita, Guillermo Carpintero, Tadao Nagatsuma, Withawat Withayachumnankul
Journal: APL Photonics
APL Photonics 8, 091101 (2023)
https://doi.org/10.1063/5.0158350
Published: September 2023
View article titled, Terahertz integration platforms using substrateless all-silicon microstructures
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Journal Articles

Terahertz topological photonic integrated circuits for 6G and beyond: A Perspective

Editor’s Pick
Abhishek Kumar, Manoj Gupta, Prakash Pitchappa, Nan Wang, Masayuki Fujita, Ranjan Singh
Journal: Journal of Applied Physics
J. Appl. Phys. 132, 140901 (2022)
https://doi.org/10.1063/5.0099423
Published: October 2022
View article titled, Terahertz topological photonic integrated circuits for 6G and beyond: A Perspective
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Journal Articles

Dielectric slot-coupled half-Maxwell fisheye lens as octave-bandwidth beam expander for terahertz-range applications

Scilight
Daniel Headland, Andreas Kurt Klein, Masayuki Fujita, Tadao Nagatsuma
Journal: APL Photonics
APL Photonics 6, 096104 (2021)
https://doi.org/10.1063/5.0054251
Published: September 2021
View article titled, Dielectric slot-coupled half-Maxwell fisheye lens as octave-bandwidth beam expander for terahertz-range applications
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Journal Articles

Terahertz multi-beam antenna using photonic crystal waveguide and Luneburg lens

Featured
Daniel Headland, Withawat Withayachumnankul, Ryoumei Yamada, Masayuki Fujita, Tadao Nagatsuma
Journal: APL Photonics
APL Photonics 3, 126105 (2018)
https://doi.org/10.1063/1.5060631
Published: December 2018
View article titled, Terahertz multi-beam antenna using photonic crystal waveguide and Luneburg lens
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Includes: Supplementary data
Journal Articles

All-dielectric rod antenna array for terahertz communications

Featured
Withawat Withayachumnankul, Ryoumei Yamada, Masayuki Fujita, Tadao Nagatsuma
Journal: APL Photonics
APL Photonics 3, 051707 (2018)
https://doi.org/10.1063/1.5023787
Published: April 2018
View article titled, All-dielectric rod antenna array for terahertz communications
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Includes: Supplementary data
Proceedings Papers

Carbon fiber reinforced polymer machining: Demonstrating speed and quality using a high power uv laser

Jim Bovatsek, Masayuki Fujita, Rajesh Patel
View Paper titled, Carbon fiber reinforced polymer machining: Demonstrating speed and quality using a high power uv laser
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Proceedings Papers

Micromachining of thin CFRP with UV-PS laser pulses

Masayuki Fujita, Hiroshi Ohkawa, Masataka Otsuka, Toshihiro Somekawa, Yoshinobu Maeda, Takaomi Matsutani, Yosuke Orii, Koji Inaba, George Okada, Noriaki Miyanaga
View Paper titled, Micromachining of thin CFRP with UV-PS laser pulses
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Proceedings Papers

Laser selective transfer process of barium strontium titanate (BST) on a sapphire substrate

Masayuki Fujita, Toshihiro Somekawa, Tetsuo Samoto, Hideki Hirano, Kousuke Hikichi, Shuji Tanaka, Masayoshi Esashi
View Paper titled, Laser selective transfer process of barium strontium titanate (BST) on a sapphire substrate
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Journal Articles

Enhancement of photocurrent in ultrathin active-layer photodetecting devices with photonic crystals

Hiroaki Shigeta, Masayuki Fujita, Yoshinori Tanaka, Ardavan Oskooi, Hiroyuki Ogawa, Yusuke Tsuda, Susumu Noda
Journal: Applied Physics Letters
Appl. Phys. Lett. 101, 161103 (2012)
https://doi.org/10.1063/1.4759149
Published: October 2012
View article titled, Enhancement of photocurrent in ultrathin active-layer photodetecting devices with photonic crystals
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Proceedings Papers

Dual beam laser grooving of CFRP by pulsed lasers

Masayuki Fujita, Toshihiro Somekawa, Takumi Ozaki, Minoru Yoshida, Noriaki Miyanaga
View Paper titled, Dual beam laser grooving of CFRP by pulsed lasers
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Proceedings Papers

Variation of photocatalytic activity in titanium dioxide film modified by femtosecond laser irradiation

Naoto Horiguchi, Masahiro Tsukamoto, Minoru Yoshida, Togo Shinonaga, Masanari Takahashi, Masayuki Fujita, Nobuyuki Abe
View Paper titled, Variation of photocatalytic activity in titanium dioxide film modified by femtosecond laser irradiation
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Journal Articles

Green GaInN photonic-crystal light-emitting diodes with small surface recombination effect

Hitoshi Kitagawa, Masayuki Fujita, Toshihide Suto, Takashi Asano, Susumu Noda
Journal: Applied Physics Letters
Appl. Phys. Lett. 98, 181104 (2011)
https://doi.org/10.1063/1.3576927
Published: May 2011
View article titled, Green GaInN photonic-crystal light-emitting diodes with small surface recombination effect
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Journal Articles

Reduction in surface recombination and enhancement of light emission in silicon photonic crystals treated by high-pressure water-vapor annealing

Masayuki Fujita, Bernard Gelloz, Nobuyoshi Koshida, Susumu Noda
Journal: Applied Physics Letters
Appl. Phys. Lett. 97, 121111 (2010)
https://doi.org/10.1063/1.3489419
Published: September 2010
View article titled, Reduction in surface recombination and enhancement of light emission in silicon photonic crystals treated by high-pressure water-vapor annealing
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Proceedings Papers

Laser micromachining of CFRP by ultra-short pulse lasers

Masayuki Fujita, Toshihiro Somekawa, Takumi Ozaki, Minoru Yoshida, Noriaki Miyanaga, Yutaka Mitooka, Kazuhisa Mikame, Hideyasu Shamoto
View Paper titled, Laser micromachining of CFRP by ultra-short pulse lasers
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Proceedings Papers

Variation of topography on the Ti-based bulk metallic glass after femtosecond laser irradiation

Togo Shinonaga, Masahiro Tsukamoto, Daisuke Tone, Sayaka Maruyama, Nobuhiro Matsushita, Takeshi Wada, Xinmin Wang, Hiroshi Honda, Shinji Motokoshi, Masayuki Fujita, Nobuyuki Abe
View Paper titled, Variation of topography on the Ti-based bulk metallic glass after femtosecond laser irradiation
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Proceedings Papers

Photoconductive properties of titanium dioxide film by femtosecond laser irradiation

Teppei Nomura, Masahiro Tsukamoto, Masanari Takahashi, Masayuki Fujita, Nobuyuki Abe
View Paper titled, Photoconductive properties of titanium dioxide film by femtosecond laser irradiation
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Proceedings Papers

Visualization of grain boundaries by nanosecond laser irradiation for controlling microstructures of metals

Masahiro Tsukamoto, Saburo Yagi, Toshiya Shibayanagi, Masayuki Fujita, Nobuyuki. Abe
View Paper titled, Visualization of grain boundaries by nanosecond laser irradiation for controlling microstructures of metals
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Proceedings Papers

Debris-free low-stress laser dicing for multi-layered MEMS wafers

Masayuki Fujita, Yusaku Izawa, Yosuke Tsurumi, Shuji Tanaka, Hideyuki Fukushi, Keiichi Sueda, Yoshiki Nakata, Noriaki Miyanaga, Masayoshi Esashi
View Paper titled, Debris-free low-stress laser dicing for multi-layered MEMS wafers
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Journal Articles

Ultrathin amorphization of single-crystal silicon by ultraviolet femtosecond laser pulse irradiation

Yusaku Izawa, Shigeki Tokita, Masayuki Fujita, Mitsuo Nakai, Takayoshi Norimatsu, Yasukazu Izawa
Journal: Journal of Applied Physics
J. Appl. Phys. 105, 064909 (2009)
https://doi.org/10.1063/1.3087754
Published: March 2009
View article titled, Ultrathin amorphization of single-crystal silicon by ultraviolet femtosecond laser pulse irradiation
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