#### Filter Results:

- Full text PDF available (2)

#### Publication Year

2001

2017

- This year (2)
- Last 5 years (6)
- Last 10 years (15)

#### Publication Type

#### Co-author

#### Journals and Conferences

Learn More

- Takehiko Oe, Sucheta Gorwadkar, Taro Itatani, Shogo Kiryu, N. Kaneko
- 2012 Conference on Precision electromagneticâ€¦
- 2012

National Metrology Institute of Japan have been proposed and fabricated the quantized Hall resistance (QHR) array devices, and confirmed the performance with uncertainty of as low as 10<sup>-8</sup>. The new combinations of Hall bars have been designed ranging from 100 Ω to 1 MΩ. This new combinations realize the quantized resistance valuesâ€¦ (More)

- Takehiko Oe, K. Matsuhiro, +8 authors N. Kaneko
- CPEM 2010
- 2010

We have developed a on-chip double-shielded quantum Hall device and a double-shielded chip-carrier. The device in conjunction with the carrier will realize impedance standard based on the quantum Hall effect. In this configuration, the Hall bar is covered by separated on-chip shields and shields of the chip carrier to retrieve the leakage current. In thisâ€¦ (More)

- Daiji Fukuda, Go Fujii, +8 authors Tatsuya Zama
- Optics express
- 2011

We have realized a high-detection-efficiency photon number resolving detector at an operating wavelength of about 850 nm. The detector consists of a titanium superconducting transition edge sensor in an optical cavity, which is directly coupled to an optical fiber using an approximately 300-nm gap. The gap reduces the sensitive area and heat capacity of theâ€¦ (More)

- Yuji Urabe, Noriyuki Miyata, +10 authors Shinichi Takagi
- 2010 International Electron Devices Meeting
- 2010

Channel mobility µ<inf>eff</inf> for InGaAs MISFETs is improved by using the (111)A surface orientation and (NH<inf>4</inf>)<inf>2</inf>S treatment. These µ<inf>eff</inf> improvements are associated with negative shifts in V<inf>th</inf> and V<inf>fb</inf>. We propose that carrier scattering by fluctuated dipoles at the MIS interfacesâ€¦ (More)

- Takehiko Oe, Kenjiro Matsuhiro, Taro Itatani, Sucheta Gorwadkar, Shogo Kiryu, Nobu-hisa Kaneko
- IEEE Transactions on Instrumentation andâ€¦
- 2008

A quantum Hall array resistance standard (QHARS) device with a nominal value close to 10 kΩ on the <i>i</i> = 2 plateau has been developed on a GaAs/AlGaAs heterosubstrate. This QHARS device consists of 266 Hall bar elements, and its nominal value has only 0.0342 × 10<sup>-6</sup> difference based on <i>R</i><sub>K-90</sub> ( = 25 812.807â€¦ (More)

- Takehiko Oe, Kenjiro Matsuhiro, Taro Itatani, Sucheta Gorwadkar, Shogo Kiryu, Nobu-hisa Kaneko
- IEEE Transactions on Instrumentation andâ€¦
- 2013

We propose a new design for a 10-<formula formulatype="inline"><tex Notation="TeX">$\hbox{k}\Omega$</tex></formula> quantized Hall resistance (QHR) array device. This design realizes quantized resistance values that approach decade values with fewer Hall bars. In this design, the 10-<formula formulatype="inline"><texâ€¦ (More)

- Takehiko Oe, K. Matsuhiro, +7 authors N. Kaneko
- CPEM 2010
- 2010

An experimental device of quantum Hall array resistance standards (QHARS) with a nominal value close to 10 kΩ on the i = 2 plateau have been developed on a GaAs/AlGaAs hetero-substrate. This device consists of just 266 Hall bar elements that are connected by triple connection technique. Its nominal value has only 0.034 2 ppm differences from theâ€¦ (More)

- Youichi Sakakibara, Kenji Kintaka, +8 authors Hiromichi Kataura
- 2006 Optical Fiber Communication Conference andâ€¦
- 2006

Various nonlinear optical devices based on carbon nanotube-polyimide saturable absorber are demonstrated. Thin film mode-lockers can achieve 165 fs for Er fiber laser and 68 fs for Er/Yb glass laser. Microcavity and waveguide structures can be fabricated.

This paper describes evolvable optical systems and their applications developed at the National Institute of Advanced Industrial Science and Technology(AIST) in Japan. Three evolvable optical systems are described: (1) an evolvable ber alignment system, (2) an evolvable interferometer system, and (3) an evolvable femtosecond laser system. As theâ€¦ (More)

- Toshiyuki Oomuro, Ryoji Kaji, +6 authors Youichi Sakakibara
- 2007 Conference on Lasers and Electro-Opticsâ€¦
- 2007

Using photosensitive polyimide, we fabricated a buried waveguide containing carbon nanotubes by a simple photolithography process. Anisotropic linear absorption and saturable absorption due to the alignment of nanotubes were observed in the guided transmission.