A5010045196- Photonic and Optical Devices
- Advanced Photonic Communication Systems
- Optical Network Technologies
- Education, Safety, and Science Studies
- Nutrition, Health and Food Behavior
- Semiconductor Lasers and Optical Devices
- Turfgrass Adaptation and Management
- Diverse Topics in Contemporary Research
- Cell Image Analysis Techniques
- Marine and Coastal Research
- Advanced Electron Microscopy Techniques and Applications
- Advanced Memory and Neural Computing
- Gas Sensing Nanomaterials and Sensors
- ZnO doping and properties
- Advanced Fluorescence Microscopy Techniques
- Magnetic properties of thin films
- Radiation Shielding Materials Analysis
- Water Quality Monitoring Technologies
- Redox biology and oxidative stress
- Advanced Radiotherapy Techniques
- Ga2O3 and related materials
- Consumer Perception and Purchasing Behavior
- E-commerce and Technology Innovations
- Coding theory and cryptography
- Electrostatic Discharge in Electronics
Intel (United States)
2021-2023
Mission College
2023
Korea University
2018-2021
University of California, Berkeley
2016-2019
Korea Aerospace University
2018
Chonnam National University
2005
With the growing demand for automotive LiDAR and maturation of silicon photonics platforms, optical phased arrays (OPAs) have emerged as a key technology solid-state beam-steering. In order to meet realistic specifications with OPAs, >500 antenna elements should work reliably under tight power cost budgets. Existing multi-chip solutions necessitate expensive packaging assembly achieve high interconnect density. Even 2-D monolithic integration, high-voltage drivers deliver sufficient...
Recent years have witnessed the development of single-molecule localization microscopy as a generic tool for sampling diverse biologically relevant information at super-resolution level. While current approaches often rely on target-specific alteration point spread function to encode multidimensional contents single fluorophores, details in an unmodified microscope already contain rich information. Here we introduce data-driven approach which artificial neural networks are trained make...
This work presents a hybrid-integrated 4- <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$\lambda $ </tex-math></inline-formula> micro-ring modulator-based wavelength-division multiplexed (WDM) optical transmitter (OTX) in the O-band, suitable for co-packaged optics. It supports up to 112 Gb/s per wavelength using high-bandwidth modulators (MRMs) together with nonlinear equalization driver electronics. A...
We review the design trade-offs that exist in CMOS inverter-based shunt-feedback transimpedance amplifier (SF-TIA) when optimizing for energy efficiency. analyze performance of series and shunt inductive peaking techniques bandwidth enhancement identify most effective one low-power TIAs. As a example, we present 128-Gb/s single-ended linear (TIA) intended use receivers 400-G Ethernet optical modules co-packaged optics. The SF-TIA is implemented 22-nm fin field-effect transistor (FinFET)...
Spin-orbit-torque (SOT) devices are promising candidates for the future magnetic memory landscape, as they promise high endurance, low read disturbance, and error, in comparison with spin-transfer torque devices. However, SOT memories area intensive due to requirement two access transistors per bit. Here, we report a multibit cell that has single write channel shared among multiple bits, which enables an area-efficient design by reducing number of transistors. All combinations digital...
Ga-doped n-type ZnO (ZnO:Ga) films were grown on sapphire substrates by rf magnetron sputtering and their structural, electrical optical properties characterized in detail. It was observed that high quality single crystal ZnO:Ga are obtained, containing up to 1 wt% of Ga. The (1 wt%) at 700 °C pure O2 showed sharp intense photoluminescence (PL) resolution x-ray diffraction (XRD) peaks, with full-width-at-half-maximum values 150 meV (room temperature PL), 24 (12 K PL) 380 arcsec (XRD), which...
Summary We propose a robust end-to-end loss differentiation scheme to identify the packet losses due congestion for TCP connections over wired/wireless networks. use measured RTT values in determining whether cause of is wired path or regular bit errors wireless paths. The classification should be as accurate possible achieve high throughput and maximum fairness sharing accuracies previous schemes literature depends on varying network parameters such RTT, buffer size, amount cross traffic,...
NiO 산화물 타겟을 이용한 RF 마그네트론 스퍼터 방법으로 유리 기판 위에 박막을 Ar 가스만을 사용하여 증착하였으며, 증착 온도에 따라 박막 특성에 미치는 영향을 조사하였다. XRD 측정으로부터 증착된 박막의 결정구조는 <TEX>$200^{\circ}C$</TEX> 이하에서 (111) 면의 우선 배향성으로 보이다가 <TEX>$350^{\circ}C$</TEX> 이상에서 (220) 배향성을 가지는 다결정 입방구조임을 확인하였다. 전기적 특성의 변화는 기판의 온도가 <TEX>$200^{\circ}C$</TEX>까지는 <TEX>$10^5\;{\Omega}cm$</TEX>의 부도체에 가까운 높은 비저항을 보였고 <TEX>$300^{\circ}C$</TEX> 이상에서는 <TEX>$10^{-1}{\sim}10^{-2}{\Omega}cm$</TEX>의 도체의 특성을 보이는 낮은 비저항으로 감소하는 Mott-Insulator Transition(MIT) 현상을 관측하였다. 내의 온도...
In this paper, an effective feature which is capable of classifying targets among the detections obtained from 2D range-bearing maps generated in active sonar environments proposed. Most conventional approaches for target classification with have considered magnitude peak and statistical features area surrounding peak. To improve performance, HOG(Histogram Gradient) feature, popular their robustness image textures analysis applied. order to classify signal, SVM(Support Vector Machine) method...
While current single-molecule localization microscopy (SMLM) methods often rely on the target-specific alteration of point spread function (PSF) to encode multidimensional contents single fluorophores, we argue that details PSF in an unmodified microscope already contain rich, information. We introduce a data-driven approach which artificial neural networks (ANNs) are trained make direct link between experimental image and its underlying parameters. To demonstrate this concept real systems,...
An all-digital nonlinear transmit-side equalization technique based on Model Predictive Control (MPC) is presented. The MPC equalizer performs an online optimization subject to eye height constraints at the RX using transmit waveform as a variable. Compared existing TX schemes such IIR or Tomlinson-Harashima Precoding, has been shown achieve best performance for any type of channel, especially when control signal resolution low, with minimal overhead RX. A simplified Direct Search algorithm...
This paper presents the implementation of a high-throughput successive-cancellation decoder for 1024-bit polar code. The proposed processes kernels in two successive layers fused manner within cycle, so as to reduce cycle count taken decode codeword. In addition, log-likelihood ratios are represented redundant form realize high-speed kernel processing. As result, period is not lengthened even with processing and thus achieving high throughput. Implemented 180nm CMOS, shows throughput 655...
우리나라의 수출지원 정책은 대기업 주도형 수출드라이브 정책에서 1997년 IMF 외환 위기를 계기로 중소기업 중심으로 수출지원이 강화되기 시작하였다. 그러나 다양한 기관에서 수출지원제도가 시행하고 있기 때문에 중복 등의 문제가 있어 자칫 국가자원의 낭비로 이어질 수 있으며, 중소기업이 원하는 수출지원제도의 우선순위의 정립이 필요한 시기이다. 따라서 본 연구에서는 성장 기반이 상대적으로 취약한 중소기업의 지원정책은 매우 중요한 요인으로 지원정책의 중요성을 파악하고자 연구는 중요도를 델파이 조사, IPA 기법을 통해 분석함으로써 차후 연구인 AHP분석의 기초가 되고자 한다. 즉, 논문은 AHP분석을 위한 기초통계학적 특징을 분석하였으며, IPA를 중요도와 만족 도를 분석하여, 요인간 도출하기 측정 영역별 우선순 위를 분석하고자
We demonstrate a dual-polarization, single-wavelength transceiver with BER below soft-decision FEC (<2.0e-2) at 320Gb/s (PAM-4) aggregate rate. The silicon photonic chip includes integrated laser, ring modulators, Si/Ge detectors, and polarization demux automatic control.
We demonstrate a dual-polarization, single-wavelength transceiver with BER below soft-decision FEC (<2.0e-2) at 320Gb/s (PAM-4) aggregate rate. The silicon photonic chip includes integrated laser, ring modulators, Si/Ge detectors, and polarization demux automatic control.
As a promising candidate for replacing CMOS-based memories, non-volatile magnetic memory has been on rise. While Spin transfer torque random access (STT-RAM) is considered as most candidate, it still suffers from various shortcomings concerning write operation. result, spin orbit (SOT-RAM) next generation memory, offers relatively better performance and lower power. Even though SOT-RAM shows advantages over STT-RAM, to meet the power level of significant reduction highly required. Therefore,...