Research Highlights

1909.2018

[인용균 교수] 3D field phase-space control in tokamak plasmas Jong-Kyu Park, YoungMu Jeon, Yongkyoon In, Joon-Wook Ahn, Raffi Nazikian, Gunyoung Park, Jaehyun Kim, HyungHo Lee, WonHa Ko, Hyun-Seok Kim, Nikolas C. Logan, Zhirui Wang, Eliot A. Feibush, Jonathan E. Menard & Michael C. Zarnstroff

  A small relaxation of the axisymmetric magnetic field of a tokamak into a non-axisymmetric three-dimensional (3D) configuration can be effective to control magnetohydrodynamic instabilities, such as edge-localized modes. However, a major challenge to the concept of 3D tokamaks is that there are virtually unlimited possible choices for a 3D magnetic field, and most of
1909.2018

Scientists Achieve First Ever Acceleration of Electrons in Plasma Waves A research team, affiliated with UNIST demonstrates a new technique for accelerating electrons to very high energies over short distances. This breakthrough has been introduced in Nature on August 29, 2018.

The Large Hadron Collider (LHC) at the European Organization for Nuclear Research (CERN)—operators of the world’s largest particle physics lab—near Geneva, Switzerland, is said to be the largest particle accelerator in the world. The accelerator lies in a tunnel 27 kilometers in circumference, as deep as 175 meters beneath the French-Swiss border. This, by the
0103.2018

[박노정교수] 원자를 춤추게 하면 ‘자석’이 될 수 있다 박노정 자연과학부 교수팀, 전자의 스핀 조절로 자성 형성 증명 Nature Comm. 논문 게재… 스핀트로닉스 연구 기여할 것

부도체 물질에 진동을 유발해 자기장을 발생시키는 방법을 찾아냈다. 적외선을 쏘아, 원자를 춤추게 만들어서, 전자의 ‘스핀(spin)’을 정돈하는 게 핵심이다. 전자의 자기적 성질을 전자공학에 이용하는 ‘스핀트로닉스(spintronics)’에 기여할 전망이다. 박노정 자연과학부 교수팀은 자기적 성질을 띠지 않는 물질로부터 자기장을 발생시키고 자석으로 만드는 방법을 최신 계산방법으로 증명했다. 적외선으로 ‘포논(phonon)’을 생성해 전자의 움직임에 영향을 주는 방식이다. 포논은 고체 속을 흐르는 진동(소리)의 입자로, 포논이
2701.2018

[박혁규 교수] 효율 100%인 정보 엔진 구현 성공 박혁규 자연과학부 교수팀, Physical Review Letters 발표 맥스웰의 도깨비, 열역학 제2법칙의 이론적 한계점 도달…이론과 실험 모두 증명

박혁규 자연과학부 교수(IBS 첨단연성물질연구단 연구위원)이 이끄는 연구진이 그간 불가능했던 효율 100%의 정보 엔진을 구현했다. 전통적인 열역학 법칙을 깨는 정보 엔진은 이전에도 존재했으나 ‘정보를 일로 전환한다’는 새로운 틀에서 완전한 효율을 달성한 것은 이번이 처음이다. 맥스웰의 도깨비 개념도 정보 엔진은 ‘맥스웰의 도깨비’라는 물리학 개념에서 출발했다. 맥스웰의 도깨비는 열역학 제2법칙인 ‘엔트로피(Entropy)는 감소하지 않는다’를 시험하기 위해 맥스웰이 고안한 사고실험이다. 어떤 가상의 존재(도깨비)가 온도가
3011.2017

[김제형 교수] UNIST Researchers Develop Silicon Chip-based Quantum Photonic Devices Their findings appear in the November issue of the prestigious journal, Nano Letters.

김제형-UNIST-자연과학부-교수-3
An international team of researchers, affiliated with UNIST has presented a core technology for quantum photonic devices used in quantum information processing. They have proposed combining of quantum dots for generating light and silicon photonic technologies for manipulating light on a single device. This breakthrough has been led by Professor Je-Hyung Kim in the School
1905.2017

[최은미 교수] UNIST Improves Remote Detection of Hazardous Radioactive Substances Researchers propose a new method that might be used to detect nuclear hazards from up to a few hundred meters away.

Professor-Choi
A recent study, affiliated with UNIST has introduced a method for the remote detection of hazardous radioactive substances. With the help of this newly-developed detection device, the detection of various types of radioactive materials can be done from a remote distance. In their study, published in the May issue of the prestigious journal, Nature Communications,
2701.2017

[박기복 교수] UNIST to Engineer Dream Diodes with a Graphene Interlayer Their findings have been published in the January issue of Nano Letters.

A team of researchers, affiliated with UNIST has created a new technique that greatly enhances the performance of Schottky Diodes (metal-semiconductor junction) used in electronic devices. Their research findings have attracted considerable attention within the scientific community by solving the problem of metal-semiconductor, which had remained unsolved for almost 50 years. As described in the
1201.2017

[허민섭 교수] The Hidden Face of the ‘Cut-Off’ Changes a Paradigm in Light Sources Identifying the physical mechanism of coherent light generation, essential to cutting-edge science.

Increased impedance near cut-off in plasma-like media leading to emission of high-power, narrow-bandwidth radiation by M. S. Hur, B. Ersfeld, A. Noble, H. Suk & D. A. Jaroszynski published in Nature Scientific Reports on the 10th January 2017. Coherent light sources such as lasers have many uses, from communication to probing the structure of matter.
0212.2016

[정모세 교수] Next-generation Accelerators Get Boost from New Beam Physics UNIST has taken a major step toward laying the technical groundwork for developing next-generation high-intensity accelerators by providing a new advanced theoretical tool for the design and analysis of complex beam lines with strong coupling

UNIST has taken a major step toward laying the technical groundwork for developing next-generation high-intensity accelerators by providing a new advanced theoretical tool for the design and analysis of complex beam lines with strong coupling. The research results achieved by Professor Moses Chung of Natural Science at UNIST in collaboration with the Princeton Plasma Physics Laboratory (PPPL) of United States
1009.2016

[박현거 교수] Scientists Move Step Closer to Solving Fusion Plasma Dilemma Prof. Hyeon K. Park's team solves the key challenges of fusion plasma. Experimental result provides new paradigm for the interpretation of ELM-crash suppression.

A team of researchers, affiliated with UNIST claims to have made yet another step towards finding a solution to one of the critical but unsolved fusion plasma physics problems, which is to mitigate or suppress the potentially harmful plasma edge instabilities, so-called the Edge Localised Modes (ELMs). The energy bursts caused by the ELMs would