Search Results - "Sugawa, S."
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1
Ultrafast energy exchange between two single Rydberg atoms on a nanosecond timescale
Published in Nature photonics (01-10-2022)“…Rydberg atoms, with their enormous electronic orbitals, exhibit dipole–dipole interactions reaching the gigahertz range at a distance of a micrometre, making…”
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Journal Article -
2
Direct observation of zitterbewegung in a Bose-Einstein condensate
Published in New journal of physics (03-07-2013)“…Zitterbewegung, a force-free trembling motion first predicted for relativistic fermions like electrons, was an unexpected consequence of the Dirac equation's…”
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3
Geometrical Pumping with a Bose-Einstein Condensate
Published in Physical review letters (20-05-2016)“…We realized a quantum geometric "charge" pump for a Bose-Einstein condensate (BEC) in the lowest Bloch band of a novel bipartite magnetic lattice. Topological…”
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4
Local thermal conductivity properties of a SiGe nanowire observed by laser power sweep Raman spectroscopy
Published in Japanese Journal of Applied Physics (29-02-2024)“…Abstract Using laser power sweep Raman spectroscopy, this research reports that the thermal transport changes with the wire width of silicon-germanium (SiGe)…”
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5
Multiple-camera defocus imaging of ultracold atomic gases
Published in Optics express (24-05-2021)“…In cold atom experiments, each image of light refracted and absorbed by an atomic ensemble carries a remarkable amount of information. Numerous imaging…”
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6
Picosecond-Scale Ultrafast Many-Body Dynamics in an Ultracold Rydberg-Excited Atomic Mott Insulator
Published in Physical review letters (22-09-2023)“…We report the observation and control of ultrafast many-body dynamics of electrons in ultracold Rydberg-excited atoms, spatially ordered in a three-dimensional…”
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7
Strong Spin-Motion Coupling in the Ultrafast Dynamics of Rydberg Atoms
Published in Physical review letters (30-08-2024)“…Rydberg atoms in optical lattices and tweezers is now a well-established platform for simulating quantum spin systems. However, the role of the atoms' spatial…”
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8
Equations of state from individual one-dimensional Bose gases
Published in New journal of physics (23-11-2018)“…We trap individual 1D Bose gases and obtain the associated equation of state by combining calibrated confining potentials with in situ density profiles. Our…”
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9
A sensitivity and linearity improvement of a 100-dB dynamic range CMOS image sensor using a lateral overflow integration capacitor
Published in IEEE journal of solid-state circuits (01-04-2006)“…In a CMOS image sensor featuring a lateral overflow integration capacitor in a pixel, which integrates the overflowed charges from a fully depleted photodiode…”
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Journal Article Conference Proceeding -
10
Effect of Drain-to-Source Voltage on Random Telegraph Noise Based on Statistical Analysis of MOSFETs with Various Gate Shapes
Published in 2020 IEEE International Reliability Physics Symposium (IRPS) (01-04-2020)“…In this work, temporal noise characteristics of 11520 MOSFETs were measured for each of rectangular and trapezoidal shaped gates, and characteristics of random…”
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Conference Proceeding -
11
Atomically Flat Silicon Surface and Silicon/Insulator Interface Formation Technologies for (100) Surface Orientation Large-Diameter Wafers Introducing High Performance and Low-Noise Metal-Insulator-Silicon FETs
Published in IEEE transactions on electron devices (01-02-2009)“…Technology to atomically flatten the silicon surface on (100) orientation large-diameter wafer and the formation technology of an atomically flat insulator…”
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12
Optimum Design of Conversion Gain and Full Well Capacity in CMOS Image Sensor With Lateral Overflow Integration Capacitor
Published in IEEE transactions on electron devices (01-11-2009)“…An optimum design theory to clarify a possible limit of achieving both high conversion gain (CG) and full well capacity (FWC) at the same time in a CMOS image…”
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13
Very High Carrier Mobility for High-Performance CMOS on a Si(110) Surface
Published in IEEE transactions on electron devices (01-06-2007)“…In this paper, we demonstrate CMOS characteristics on a Si(110) surface using surface flattening processes and radical oxidation. A Si(110) surface is easily…”
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14
Three-Dimensional Wave Optical Simulation for Image Sensors by Localized Boundary Element Method
Published in IEEE transactions on electron devices (01-11-2009)“…A novel wave optical simulation method [a localized boundary element method (BEM)] has been developed. This method enables us to execute 3-D wave optical…”
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15
A 1.9 e^ Random Noise CMOS Image Sensor With Active Feedback Operation in Each Pixel
Published in IEEE transactions on electron devices (01-11-2009)“…A 1.9 e - random noise CMOS image sensor has been developed by applying an active feedback operation (AFO), which uses a capacitive feedback effect to floating…”
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16
A Wide DR and Linear Response CMOS Image Sensor With Three Photocurrent Integrations in Photodiodes, Lateral Overflow Capacitors, and Column Capacitors
Published in IEEE journal of solid-state circuits (01-07-2008)“…A 1/3-inch, 800 H x 600 v pixels, 5.6 x 5.6 mum 2 color CMOS image sensor with three photocurrent integrations in pixel photodiodes, pixel lateral overflow…”
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17
The study of time constant analysis in random telegraph noise at the subthreshold voltage region
Published in 2013 IEEE International Reliability Physics Symposium (IRPS) (01-04-2013)“…We extracted time constants capture and emission of Random Telegraph Noise (RTN), and their dependencies of the gate-source voltage from numerous MOSFETs and…”
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Conference Proceeding -
18
Statistical analysis of Random Telegraph Noise reduction effect by separating channel from the interface
Published in 2012 IEEE International Reliability Physics Symposium (IRPS) (01-04-2012)“…Random Telegraph Noise (RTN) has become one of the most important problems in the continuous downscaling of CMOS circuitry. We demonstrate the RTN reduction by…”
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Conference Proceeding -
19
Quantum Degenerate Fermi Gases of Ytterbium Atoms
Published in Journal of low temperature physics (01-08-2007)“…We performed evaporative cooling for dilute gases of ytterbium (Yb) isotopes in a crossed optical dipole trap and successfully cooled two fermionic and two…”
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Journal Article -
20
Demonstrating individual leakage path from random telegraph signal of stress induced leakage current
Published in 2014 IEEE International Reliability Physics Symposium (01-06-2014)“…Time-dependent characteristics of stress induced leakage current (SILC) for the 5.7 and 7.7 nm oxides were evaluated to detect the random telegraph signal…”
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Conference Proceeding