Volume 50 Number 3 (2019.9)
Special Feature
Nano Structured Devices
Overview
Research Reports
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2. Silicon Resonator Applied to Flat Ultra-thin Grating Lenses
(1554kB)pages 1-6
Takayuki Matsui, Shuichi Yamashita, Hiroyuki Wado and Hideo Iizuka
Silicon metasurface structures that exhibit perfect absorption and focusing ability are presented. High refractive index silicon enables light confinement in the silicon nanoblocks, and tunability of the coupling rate is provided via the nanoblock geometric parameter.
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3. Signal Detection with Nanomechanical Systems and Its Improvement by Utilizing Noise
(1231kB)pages 7-17
Yukihiro Tadokoro, Hiroya Tanaka, Keita Funayama and Yutaka Ohno
A nanoscale phase detector, in which mechanical vibration of a tip of carbon nanotube digitally receive and detect phase-modulated signals, is proposed. To enhance the received signal power, a current enhancement method exploiting noise is also introduced. The numerical results and theoretical discusion demonstrate the effectiveness of the proposed method.
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4. Design and Application of a Microwave Phase Shifter Based on a Nanomechanical Resonator
(837kB)pages 19-25
Hiroya Tanaka, Takashi Ozaki, Tatsuya Nobunaga, Yutaka Ohno and Yukihiro Tadokoro
We present a theoretical study of an adaptive microwave phase shifter based on a nanomechanical resonator. The phase shifter facilitates an arbitrary phase rotation in the range from −90° to +90° by tuning the applied bias voltage.
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pages 27-38
Yuri Yamada, Kota Ito, Tadashi Nakamura, Atsushi Miura and Kazuhisa Yano
Self-assembly has attracted significant attention as a simple method for the fabrication of nanodevices, in which components autonomously assemble into an organized pattern without the need for specific fabrication devices. Here, we report on the fabrication and unique application of two types of SiO2 nanostructures by taking advantage of self-assembly.