Zobrazeno 1 - 10
of 193
pro vyhledávání: '"Eiichi Kuramochi"'
Autor:
Kengo Nozaki, Shinji Matsuo, Takuro Fujii, Koji Takeda, Akihiko Shinya, Eiichi Kuramochi, Masaya Notomi
Publikováno v:
APL Photonics, Vol 3, Iss 4, Pp 046101-046101-9 (2018)
Generally, reverse-biased photodetectors (PDs) are used for high-speed optical receivers. The forward voltage region is only utilized in solar-cells, and this photovoltaic operation would not be concurrently obtained with high efficiency and high spe
Externí odkaz:
https://doaj.org/article/36ec0c3485af4adc8b50a927c8382a25
Autor:
Kengo Nozaki, Abdul Shakoor, Shinji Matsuo, Takuro Fujii, Koji Takeda, Akihiko Shinya, Eiichi Kuramochi, Masaya Notomi
Publikováno v:
APL Photonics, Vol 2, Iss 5, Pp 056105-056105-11 (2017)
Towards realizing highly integrable low-energy optical modulators, the small device capacitance (C) as well as the low driving voltage (Vpp) is demanded for suppressing the charging energy during the dynamic operation. Although an electro-absorpti
Externí odkaz:
https://doaj.org/article/ade1ba023c9943b884b445cf110b2dd9
Autor:
Masato Takiguchi, Atsushi Yokoo, Kengo Nozaki, Muhammad Danang Birowosuto, Kouta Tateno, Guoqiang Zhang, Eiichi Kuramochi, Akihiko Shinya, Masaya Notomi
Publikováno v:
APL Photonics, Vol 2, Iss 4, Pp 046106-046106-10 (2017)
We demonstrated sub-wavelength (∼111 nm diameter) single nanowire (NW) continuous wave (CW) lasers on silicon photonic crystal in the telecom-band with direct modulation at 10 Gb/s by optical pumping at cryogenic temperatures. To estimate the small
Externí odkaz:
https://doaj.org/article/520504ff990e414a844c1ab84cfd822e
Autor:
Shota Kita, Kenta Takata, Masaaki Ono, Kengo Nozaki, Eiichi Kuramochi, Koji Takeda, Masaya Notomi
Publikováno v:
APL Photonics, Vol 2, Iss 4, Pp 046104-046104-10 (2017)
Recently, coherent control of absorption in metallic metasurfaces has been demonstrated, and this phenomenon was applied to intriguing light-by-light switching operation. Here we experimentally demonstrate coherent control of beam deflection by hi
Externí odkaz:
https://doaj.org/article/0ab10e1968784983bd553c4023a78776
Autor:
Kenta Takata, Kengo Nozaki, Eiichi Kuramochi, Shinji Matsuo, Koji Takeda, Takuro Fujii, Shota Kita, Akihiko Shinya, Masaya Notomi
Publikováno v:
NTT Technical Review. 20:35-41
Autor:
Akihiko Shinya, Naotomo Takemura, Sylvain Sergent, Tabijah Wasawo, Kouta Tateno, Masaya Notomi, Atsushi Yokoo, Kengo Nozaki, Satoshi Sasaki, Eiichi Kuramochi, Masato Takiguchi
Publikováno v:
ACS Photonics. 7:1016-1021
We report the successful demonstration of all-optical switching using a sub-wavelength InP/InAsP nanowire integrated in a silicon photonic crystal at telecommunication wavelengths. In this work, we...
Publikováno v:
Conference on Lasers and Electro-Optics.
Various reports demonstrated that valley photonic-crystal waveguides without inversion symmetry support high transmission in 120-degree sharp bends, whose origin, however, has not been clarified yet. Here, we find that the type of waveguide interface
Autor:
Eiichi Kuramochi
Publikováno v:
Nature Photonics. 15:2-4
The first demonstration of an optical parametric oscillator using a photonic crystal microcavity is promising for the future development of on-chip light sources for applications in integrated quantum optics.
Autor:
Eiichi Kuramochi, Takuro Fujii, Shinji Matsuo, Akihiko Shinya, Kengo Nozaki, Koji Takeda, Masaya Notomi
Publikováno v:
Nature Photonics. 13:454-459
The introduction of photonic technologies into mature electronic circuits is in high demand to accelerate on-chip information networking and even computing. Great difficulty lies in the fact that the optoelectronic coupling at their interfaces requir
Publikováno v:
Conference on Lasers and Electro-Optics.
We have experimentally demonstrated a new formation mechanism of off-Γ bound states in the continuum (BICs), which are generated by a simple symmetry breaking of trivial at-Γ BICs in photonic crystals.