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Observation and Study of Low-Frequency Oscillations in a 1.5-MW 110-GHz Gyrotron File

Cerfon, Antoine J. , Choi, EunMi , Marchewka, Chad D. , Mastovsky, Ivan , Shapiro, Michael A. , Sirigiri, Jagadishwar R. , Temkin, Richard J.

Article Issue Date2009-07 View6

Observation of large arrays of plasma filaments in air breakdown by 1.5-MW 110-GHz gyrotron pulses File

Hidaka, Yoshiteru , Choi, EunMi , Mastovsky, I. , Shapiro, M. A. , Sirigiri, J. R. , Temkin, R. J.

Article Issue Date2008-01 View6

Observation of Pulse Shortening Based on Plasma Discharge Phenomenon in W-band Gyrotron

Kim, Dongsung , Yu, Dongho , Sawant, Ashwini , Choi, EunMi

Conference Paper Issue Date2016-10-19 View11

Observation of trapped-modes excited in double-layered symmetric electric ring resonators File

Seo, Bo-jeong , Kim, Kwanghoon , Kim, Sung Gug , Kim, Areun , Cho, HyungJoon , Choi, EunMi

Article Issue Date2012-06 View13

Orbital angular momentum (OAM) multiplexing for a wireless backhaul communication system: Ultimate capacity analysis of OAM channels File

Sawant, Ashwini , Lee, Ingeun , Choi, EunMi

Conference Paper Issue Date2020-05-25 View4

Orbital Angular Momentum (OAM) of Rotating Modes Driven by Electrons in Electron Cyclotron Masers File File

Sawant, Ashwini , Choe, Mun Seok , Thumm, Manfred , Choi, EunMi

Article Issue Date2017-06 View8

Orbital angular momentum of gyrotron modes File

Sawant, Ashwini , Choe, Mun Seok , Thumm, Manfred , Choi, EunMi

Conference Paper Issue Date2017-08-27 View8

Overview of the KoRIA Facility for Rare Isotope Beams File

Ahn, Jung Keun , Bak, Sang In , Blumenfeld, Yorick , Chai, Jong-Seo , Cheon, Byung-Gu , Cheoun, Myung-Ki , Cho, Donghyun , Cho, Yong Sub , Choi, Bong Hyuk , Choi, Chang Ill , et al

Article Issue Date2013-03 View8

Performance Evaluation of a Diode-Type Carbon Nanotube Field Emitter with Inverse T-Type Cathode Configuration

V, Venkatareddy , Choi, Wonjin , Choi, EunMi

Conference Paper Issue Date2023-08-25 View7

Phase retrieval of a high power gyrotron vortex beam

Sawant, Ashwini , Choe, Mun Seok , Choi, EunMi

Conference Paper Issue Date2016-12-16 View6

Phase Retrieval of High-Power Gyrotron Orbital Angular Momentum Beams File

Sawant, Ashwini , Yu, Dongho , Kim, Dongsung , Choe, Munseok , Choi, EunMi

Conference Paper Issue Date2017-04-24 View4

Plasma structures observed in gas breakdown using a 1.5 MW, 110 GHz pulsed gyrotron File

Hidaka, Yoshiteru , Choi, EunMi , Mastovsky, I. , Shapiro, M. A. , Sirigiri, J. R. , Temkin, R. J. , Edmiston, G. F. , Neuber, A. A. , Oda, Y.

Article Issue Date2009-05 View7

Possible use of a high power THz source for gamma ray detection

Choi, Eun Mi

Conference Paper Issue Date2012 View3

Precise measurement of field patterns from a TE02 mode converter using the electro-optic probe scanning system File

Choi, Eun Mi , Lee, Ingeun , Kim, Kwanghoon , Choe, Munseok , Lee, Dongjoon

Conference Paper Issue Date2014-04-23 View8

Proposal of Mode Selection Criterian for Advanced KDEMO Gyrotron File

Sawant, Ashwini , Choi, EunMi , Choe, Mun Seok

Conference Paper Issue Date2016-04-04 View5

Quasi‐optical Mode Converter for a Second Harmonic 0.4THz, 100kW Gyrotron Oscillator

Choi, Eun Mi , None

Conference Paper Issue Date2013 View5

Real-time, remote detection of radioactive material using a high-power millimeter/THz wave vacuum device File

Kim, Dongsung , Yu, Dongho , Sawant, Ashwini , Choe, Mun Ssok , Lee, Ingeun , Choi, EunMi

Conference Paper Issue Date2017-10-10 View7

Reduction of fundamental mode competition in 400 GHz second harmonic Gyrotron

Sawant, Ashwini , 최은미

Conference Paper Issue Date2017-08-24 View6

Remote Detection of Radioactive Material using High-Power Pulsed Electromagnetic Radiation File File

Kim, Dongsung , Yu, Dongho , Sawant, Ashwini , Choe, Mun Seok , Lee, Ingeun , Kim, Sung Gug , Choi, EunMi

Article Issue Date2017-05 View11

Self-Driving Energy-Recirculating Micromachined G-Band Folded Waveguide Traveling-Wave Tube Oscillator File

Lee, Ingeun , Sawant, Ashwini , Shin, Jinwoo , Choi, EunMi

Article Issue Date2018-08 View44

Sensing a radioactive material remotely using a high power THz source

Choi, Eun Mi , Kim, DS , Kim, SG , Lee, WS , So, J

Conference Paper Issue Date2012-11-01 View7

Significant Reduction of Resonant Frequency by Multi-Layered Dielectric Material-Loaded Coaxial Cavity for Microwave Heating File File

Han, TaeGyu , Seo, YouMin , Choi, EunMi

Article Issue Date2022-01 View12

Simulation investigation of Smith-Purcell radiation at THz regime

Choi, Hong Eun , Choi, EunMi

Conference Paper Issue Date2020-08-20 View9

Simulation of Electron Beams With Nonuniform Particle Density for Traveling-Wave Tubes in Emittance-Dominated Regime File

Choi, Wonjin , Choi, EunMi

Conference Paper Issue Date2022-05 View4

Simulation Study of Beam Emittance Effects on Terahertz Traveling-Wave Tubes

Choi, Wonjin , Choi, EunMi

Conference Paper Issue Date2021-08-18 View10

Stability Analysis of 300-GHz Sheet Electron Beam Transport in a Periodic Rectangular Quadrupole File

Choi, Wonjin , Lee, Ingeun , Shin, Jinwoo , Choi, EunMi

Article Issue Date2021-03 View9

Stand-off radiation detection techniques File

Sawant, Ashwini , Kwak, Donghyun , Lee, Ingeun , Chung, Moses , Choi, EunMi

Article Issue Date2020-07 View13

Study of OAM mode identification based on interference patterns with lens integrated meta-material OAM structures

Moon, Seokju , Go, Hyun , Choi, Wonjin , Choi, EunMi

Conference Paper Issue Date2021-08-18 View10

Study on creation of free electrons from concealed radioactive materials using the MCNPX code system

Choi, Eun Mi

Conference Paper Issue Date2011 View6

Study on Dielectric Heating of a Dielectric Material in a Cylindrical Cavity by Microwave

Choi, EunMi

Conference Paper Issue Date2019-08-22 View13

Study on free electrons generated by concealed radioactive materials under controlled gaseous environment File

Kim, D.S. , Lee, W.S. , So, J.H. , Choi, Eun Mi

Conference Paper Issue Date2012-09-23 View6

Study on statistical breakdown delay time in argon gas using a W-band millimeter-wave gyrotron File

Kim, Dongsung , Kim, Sung Gug , Sawant, Ashwini , Yu, Dongho , Choe, MunSeok , Choi, EunMi

Article Issue Date2016-04 View4

Study on the Transmission Characteristics of the Window for W-band Gyrotron

Choi, EunMi , Kim, Dongseong , Kim, Jungho , So, Joonho , Shin, Jinwoo , Yang, Jongwon , Yeom, Seunghwan , Yoon, Yeongjoon , Lee, Minwoo , Lee, Woosang , et al

Conference Paper Issue Date2014-06-19 View7

System Design of Orbital Angular Momentum Transmitter Using Dual-Beam Traveling Wave Tube Amplifier

Lee, Ingeun , Sawant, Ashwini , Moon, Seok Ju , Choi, EunMi

Conference Paper Issue Date2021-04-27 View11

System Development and Perfomance Evaluation of a 0.272 THz Pulsed Folded Waveguide Traveling Wave Tube Oscillator File

Lee, Ingeun , Choi, Wonjin , Sawant, Ashwini , Choe, Mun Seok , Shin, Jinwoo , Choi, EunMi

Conference Paper Issue Date2019-04-28 View8

System Development and Performance Testing of a W-Band Gyrotron File

Kim, Sung Gug , Sawant, Ashwini , Lee, Ingeun , Kim, Dongsung , Choe, MunSeok , Won, Jong-Hyo , Kim, Jungho , So, Joonho , Jang, Won , Choi, EunMi

Article Issue Date2016-03 View7

The Concept of Fast Switching System using Photo-excited Media for Electromagnetic Wave Transmission in Millimeter Wave Regime

Choi, Moonseok , Lee, Gyuseob , Yoo, Nanee , Choi, EunMi

Conference Paper Issue Date2015-04-22 View11

The dielectric constant measurement using a TE01 mode in W-band File

Choi, Hong Eun , Choi, Wonjin , Choe, Mun Seok , Simakov, Evgenya , Carlsten, Bruce , Zuboraj, Muhammed , Choi, Eun Mi

Conference Paper Issue Date2019-04-28 View7

The experimental results of fast switching system for millimeter wave transmission using photo-excited semiconductor File

Choe, Mun Seok , Lee, Kyu-Sup , Yu, Nan Ei , Choi, EunMi

Conference Paper Issue Date2015-08-24 View8

The Experimental Study of Time Resolved Inductively Coupled Plasma for Fast Control of High-Power Millimeter-wave

Choe, Mun Seok , Sawant, Ashwini , Lee, Ingeun , Choi, Won jin , Choi, Hong Eun , Han, Taekyu , Choi, EunMi

Conference Paper Issue Date2019-06-23 View12

The Experimental Verification of Gaussian Beam Coupling for ECH Transmission Line at 400 GHz File

Choe, Mun Seok , Sawant, Ashwini , Choi, EunMi

Conference Paper Issue Date2016-04-04 View6

The gyrotron – a natural source of high-power orbital angular momentum millimeter-wave beams File

Thumm, M. , Sawant, A. , Choe, M.S. , Choi, EunMi

Conference Paper Issue Date2017-07-17 View4

The higher harmonic mode (TEmp, m>>1) generation in a cylindrical cavity via direct fundamental wave

Choi, Eun Mi , None

Conference Paper Issue Date2013 View2

The measurement of minority carrier life time in a semi-conductor using quasi-optical millimeter and THz wave systems

Choe, Mun Seok , Choi, EunMi

Conference Paper Issue Date2016-12-16 View11

The measurement of minority carrier lifetime using semiconductor fast switching system in millimeter wave regime

Choe, Mun Seok , Lee, Kyuseob , You, Nan Ei , Choi, EunMi

Conference Paper Issue Date2015-10-22 View9

The measurement of permittivity using TE01 mode in a cylindrical waveguide beyond 300GHz frequency band

Choi, Hong Eun , Choi, EunMi

Conference Paper Issue Date2020-12-06 View8

The study of millimeter-wave based quasi-optical photoconductivity decay technique for precise measurement of minority carrier life time File

Choe, Mun Seok , Sawant, Ashwini , Lee, Kyu-Sup , Yu, Nan Ei , Choi, EunMi

Conference Paper Issue Date2016-09-25 View5

Time-Dependent Code Development for Gyrotron Design

Sawant, Ashwini , 이인근 , 최문석 , 최은미

Conference Paper Issue Date2018-02-21 View8

Trantenna: Monolithic Transistor-Antenna Device for Real-Time THz Imaging System File

Ryu, MW , Patel, Ramesh , Ahn, SH , Jeon, HJ , Choe, MS , Choi, EunMi , Han, Ki Jin , Kim, Kyung Rok

Conference Paper Issue Date2017-06-07 View6

Triode-type magnetron injection gun simulation for a dual frequency gyrotron

Choi, Hong Eun , Choi, EunMi

Conference Paper Issue Date2021-08-18 View7

Ultimate Capacity Analysis of Orbital Angular Momentum Channels File

Sawant, Ashwini , Lee, Ingeun , Jung, Bang Chul , Choi, EunMi

Article Issue Date2021-02 View15

UNIST(울산과학기술대학교) 밀리미터파 및 서브밀리미터파 대역 연구 현황 소개

Choi, EunMi , Park, Kibog , Kim, Kyung Rok , Han, Ki Jin

Article Issue Date2013-05 View10

Validation of 3-D Time Domain Particle-in-Cell Simulations for Cold Testing a W-Band Gyrotron Cavity File

Sawant, Ashwini , Kim, Sung Gug , Lin, Ming-Chieh , Kim, Jung Ho , Hong, Yongjun , So, Joonho , Choi, EunMi

Article Issue Date2014-12 View13

간단한 고차모드 발생기 설계를 통한 새로운 모드변환기 성능 검증 방법 연구

Choi, EunMi , 김동성 , 김성국 , 소준호 , 최문석

Conference Paper Issue Date2014-06-19 View5

고출력 자이로트론 출력전력을 측정하기 위한 칼로리미터 제작 및 측정

Choi, Eun Mi , Kim, Dongseoung , Lee, Junghyuk , Kim, Seongkook , Lee, Inguen , Choi, Moonseok , Ashwini, Sawant , Jeong, Mi , Lee, Inhyuk , Han, Wonsoon , et al

Conference Paper Issue Date2014-06 View13

고출력 테라헤르츠파 진공전자소자 국내 개발 현황

최은미

Conference Paper Issue Date2021-11-26 View9

공진기 고차모드 발생장치

최은미 , 최문석 , 김광훈

Patent Issue Date View7

궤도각운동량을 이용한 전이중 통신 안테나 시스템 및 전이중 통신 안테나 시스템의 설계 방법

최은미 , 이인근 , 손웅 , 정방철 , Ashwini Sawant

Patent Issue Date View14

나노 CNC 가공기를 이용한 Y 주파수 대역 Folded Waveguide 제작 및 평가

이인근 , 최원진 , 최은미

Conference Paper Issue Date2017-06-08 View7

나노 정밀 가공 기술을 활용한 테라헤르츠 진공 전자 소자 개발

Lee, Ingeun , Shin, Jinwoo , Choi, EunMi

Conference Paper Issue Date2021-05-12 View10

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