Embedded Files
2026
🎉Our latest research has been published in Advanced Science.
2026.07
Title: Efficient Polarization-Entangled Photon-Pair Generation by a Fiber-In-Line van der Waals Material
Authors: Jungseok Choi, Seonju Ha, Seungjae Lim, Kwang Jun Ahn, Jaekyoung Kim, Jong Hyuk Yim, Nam Hun Park, Youngdong Yoo, Jae-Ung Lee, Hee Su Park, Sang Min Lee, Dong-Il Yeom
DOI: 10.1002/advs.76712
Jungseok Choi, Seonju Ha, Seungjae Lim, Kwang Jun Ahn, Jaekyoung Kim, Jong Hyuk Yim, Nam Hun Park, Youngdong Yoo, Jae-Ung Lee, Hee Su Park, Sang Min Lee, Dong-Il Yeom, "Efficient Polarization-Entangled Photon-Pair Generation by a Fiber-In-Line van der Waals Material", Advanced Science (2026): e76712. https://doi.org/10.1002/advs.76712, IF=14.1 (JCR 9.6%)
🎉Our research has been published in PhotoniX.
2026.06
Title: Manipulating nonlinear dephasing dynamics of Dirac fermions in nearly degenerate four-wave mixing
Authors: Seongju Ha, Youngchan Choi, Nam Hum Park, Jungseok Choi, Jaedeok Park, Kwang Jun Ahn, Hee-Su Park, JaeDong Lee, Sang Min Lee & Dong-Il Yeom
DOI: 10.1186/s43074-026-00261-3
아주대, 꿈의 신소재 ‘그래핀’ 광 특성 규명 (이데일리 2026/07/07)
아주대 연구팀, 그래핀서 기존보다 1000배 강한 비선형 광특성 입증 (주간한국 2026/07/06)
아주대 염동일 교수 연구팀, 꿈의 신소재 ‘그래핀’의 새로운 광특성 규명 (한국대학신문 2026/07/06)
아주대 공동 연구팀 그래핀 새로운 광특성 규명 '차세대 광정보 처리기술 핵심소재' (베리타스알파 2026/07/06)
Seonju Ha, Youngchan Choi, Nam Hun Park, Jungseok Choi, Jaedeok Park, Kwang Jun Ahn, Hee-Su Park, JaeDong Lee*, Sang Min Lee* and Dong-Il Yeom*, "Manipulating nonlinear dephasing dynamics of Dirac fermions in nearly degenerate four-wave mixing", PhotoniX 7, 39 (2026). https://doi.org/10.1186/s43074-026-00261-3, IF=18 (JCR 5.8%)
2026.04
Youngbin Kim, Siheon Ryu, Sungmin Park , and Dong-Il Yeom, "All-fiber Wavelength-tunable Mode-locked Laser Using a Compact Spectral Birefringent Filter", Current Optics and Photonics (2026), Vol. 10, No. 2, April 2026, pp. 172–178, https://doi.org/10.3807/COPP.2026.10.2.172, IF=1.0 (JCR 81.8%)
2026.03
Joohyeon Ahn, Jungseok Choi, Myounghyun Lee, Seongju Ha, Kwanyong Seo*, Dong-Il Yeom* and Youngdong Yoo*, "Junction Geometry-Dependent Nonlinear Optical Responses and Diode Effects of MoSe2–WSe2 Heterostructures Synthesized Using Liquid Precursors", ACS Applied Materials & Interfaces, https://doi.org/10.1021/acsami.5c23461, IF=7.8 (JCR 22.4%)
2025
2025.10
Jaekyung Kim (M.S. ) got an outstanding award (우수상) in 2025 KPS Fall Meeting !
- Title: A Study on the Nonlinear Conversion of Orbital Angular Momentum Beams in Two-Dimensional Materials
2025.10
Juhwan Kim (M.S. ) got an outstanding award (우수상) in 2025 KPS Fall Meeting !
- Title: Excitation of Epsilon-Near-Zero Modes via Phase Matching in Optical Fibers deposited Ga:ZnO Thin-Film
2025.08
Tayyaba Batool (M.S. ) got an outstanding award (우수상) in 2025 BK21대학원 혁신 G-램프사업단 간 연구 성과 공유 확산 심포지엄
- Title: Strain Driven Optical Responses in low Dimentional SnP2S6
2025.08
Mingyu Kim (M.S. ) got an 혁신 논문상 in 차세대 리소그래피 + 패터닝 학술대회 (NGL 2025. 08)!
- Title: 반사 스펙트럼 측정에 기반한 CNT flim 두께 분석 및 박막 두께에 따른 EUV-근적외선 간의 투과율 상관관계 연구
2025.07
Dongwon Choi (M. S., 2023-2025) has joined LIG Nex1. Congratulations!!
우리 연구실 출신 최동원 연구원 (석사 졸업)이 LIG 넥스원에 최종 합격하였습니다. 축하합니다!!
2025.05
Jungseok Choi (Ph. D. Student) got an outstanding student paper award (우수학생논문상) in Conference on Optoelectronics and Optical Communications (COOC 2025. 05)!
- Title: 층상구조 SnP2S6 결합 광섬유 소자에서 이차 조화파 발생 특성 연구
2025.02
Jungseok Choi (Ph. D. Student) got an outstanding student paper award (우수학생논문상) in Optics and Photonics congress (OPC 2025. 02)!
- Title: 자가 위상 결맞음이 가능한 SnP2S6의 이차 조화파 발생 연구
2025.02
Attended the Optical Society of Korea winter Annual Meeting 2025.
2024
2024.11
Dr. Seongju Ha (M.S. & Ph. D., 2015-2023) joined Quantum Optics group of Korea Research Institute of Standards and Science (KRISS)! Congratulations!!
우리 연구실 출신 하성주 박사가 한국표준과학연구원 양자광학팀에 선임연구원으로 입사하였습니다. 축하합니다!!
2024.07
Attended the Optical Society of Korea Summer Annual Meeting 2024.
2024.06
이번 학기(24-1학기) 우리 그룹에서 특수연구를 수행한 김민규 학생과 신민서 학생이 연구결과 발표회에서 우수 발표자로 선정되었습니다. 축하합니다!
2024.05
과학기술정보통신부 및 한국연구재단 주관 집단연구지원사업인 "기초연구실사업" 후속 과제에 선정되었습니다.
[아주뉴스] https://www.ajou.ac.kr/kr/ajou/news.do?mode=view&articleNo=319627&article.offset=0&articleLimit=12
2024.02
Jaedeok Park (Ph. D. Student) has been honored with outstanding graduation awards (BTS awards, 에너지시스템학과)!
*BTS: best thesis awards
2023
2023.12
이번 학기(23-2학기) 우리 그룹에서 특수연구를 수행한 양지원 학생과 김주환 학생이 연구결과 발표회에서 최우수 및 우수 발표자로 선정되었습니다. 축하합니다!
2023.06
이번 학기(23-1학기) 우리 그룹에서 특수연구를 수행한 홍우석 학생이 연구결과 발표회에서 최우수 발표자로 선정되었습니다. 축하합니다!
2023.05
Taeyeol Min (Ph. D. Student) got an outstanding student paper award (우수학생논문상) in Advanced Lasers and Their Applications (ALTA 2023)!
- Title: Graded index 다중모드 광섬유에서 공간모드 결합 조건에 따른 라만 광신호 발생 특성 연구
2023.04
Our recent work was published in Advanced Optical Materials (IF = 10.050, IF (%) = 8.416)!
우리 그룹의 연구 결과가 <어드밴스드 옵티컬 메터리얼즈, IF = 10.050, IF (%) = 8.416> 4월 7일자 온라인판에 게재되었습니다.
- Title: Large-Area Structure-Selective Synthesis of Symmetry-Broken MoSe2 and Their Broadband Nonlinear Optical Response
- Look at https://onlinelibrary.wiley.com/doi/10.1002/adom.202203116!
2023.02
Seongju Ha (Ph. D. Student) has been honored with outstanding graduation awards (우수논문상 & BTS awards, 에너지시스템학과)!
*BTS: best thesis awards
2023.01
Yujae Jeong (M. S., 2021-2023) has joined Hanhwa Systems. Congratulations!!
우리 연구실 출신 정유재 연구원 (석사 졸업)이 한화시스템에 최종 합격하였습니다. 축하합니다!!
2022
2022.12
Our recent work was published in Nanophotonics (IF = 7.923, IF (%) = 10.396)!
우리 그룹의 연구 결과가 <나노포토닉스, IF = 7.923, IF (%) = 10.396> 12월 15일자 온라인판에 게재되었습니다.
- Title: Electrically controllable diffractive optical elements fabricated by direct laser writing on a carbon nanotube network film
- Look at https://www.degruyter.com/document/doi/10.1515/nanoph-2022-0518/html!
(2022.07)
Our group attended Optics and Photonics Congress 2022 (OPC 2022) held in Jeju islands!!
2022.06
Soyeon Park (Undergraduate student) won an outstanding student presentation award in 2022-1 Capstone Design (Directed research in Physics, Ajou University)!
- Title: Study of nonlinear optical responses in twisted bilayer WS2
2022.06
Our paper will be highlighted as a supplementary journal cover of ACS Photonics!
우리 그룹의 연구결과가 <ACS Photonics, IF = 7.077, IF (%) = 12.376>의 supplementary journal cover에 선정되었습니다!
- Title: Enhanced Optical Third-Harmonic Generation in Phase-Engineered MoTe2 Thin Films
- Look at https://pubs.acs.org/doi/10.1021/acsphotonics.2c00222!
[(주)파이버프로 채용공고 안내]
국내 유일의 광섬유 센서기술 전문기업 (주)파이버프로에서 2022년도 상반기 부문별 인재를 모집하여 안내합니다. 새로운 개념과 독창적인 기술로 전 세계 유수의 기업들과 연구소에서 파이버프로의 다양한 광계측 및 광센싱 제품들이 사용되고 있습니다. 관심있는 분들의 많은 지원바랍니다.
-모집분야: 광학 엔지니어 (신입 또는 경력) / 영업마케팅 (신입 또는 경력)
-모집기간: 2022년 6월 21일 ~ 2022년 7월 04일
-자세한 사항은 여기를 참고하세요!
2022.06
Dr. Nam Hun Park (M.S. & Ph. D., 2014-2020) joined Agency for Defense Development (ADD)! Congratulations!!
우리 연구실 출신 박남훈 박사가 국방과학연구소에 최종합격하였습니다. 축하합니다!!
2022.05
Prof. Dong-Il Yeom was selected as 'Ajou Top Researcher (2021학년도 연구우수교수)'!
- Look at https://www.ajou.ac.kr/kr/ajou/news.do?mode=view&articleNo=198481&article.offset=48&articleLimit=12!
2022.05
Mr. Hyunjun Nam, an undergraduate student has been with us for a long time (2017-2022, including the military service 2020-2021), was selected as a photonics scholarship student at the Max Planck Foundation in Germany. Congratulations!!
우리 연구실에서 오랫동안 함께한 남현준 학부 연구생이 독일 막스플랑크재단 포토닉스 장학생으로 선정되었습니다. 축하합니다!!
2021
2021.11
Jungseok Choi (M.S. Student) won an outstanding student oral presentation award in 2021 The Korean Physical Society (KPS) fall Meeting!
- Title: Study of second-order optical nonlinearity in twisted few-layer graphene
(뒤틀려 적층된 수 층 그래핀에서의 이차 비선형성 연구)
- Look at https://www.ajou.ac.kr/kr/ajou/news.do?mode=view&articleNo=114562
2021.07
Our group attended Optics and Photonics Congress 2021 (OPC 2021) held in Jeju islands!!
2021. 06
The 1st EX(NL)O BRL workshop was held on June 23, 2021.
제 1회 EX(NL)O BRL 워크샵을 2021년 6월 23일 개최하였습니다.
2021.06
Our group was selected as the "Basic Research Lab. " with Complex Oxide Physics Lab., Computational Quantum Materials Lab., and Optoelectronics & Quantum Materials Laboratory in Ajou university!
과학기술정보통신부 및 한국연구재단 주관 "2021년도 집단연구지원사업 기초연구실 신규 과제" 에 최종 선정되었습니다.
- 연구실명: 원자수준 계면제어 극한 비선형광학 기초연구실 (Extreme Nonlinear Optics Basic Research Lab. [EX(NL)O BRL])
- Related articles featured in several newspapers:
[중앙일보] https://news.joins.com/article/24074678
[e- 대학저널] https://www.dhnews.co.kr/news/articleView.html?idxno=141708
[이데일리] https://www.edaily.co.kr/news/read?newsId=02387846629078440&mediaCodeNo=257
2021.05
Seongju Ha (Ph. D. Student) won an outstanding student paper award (우수학생논문상) in 20th Advanced Lasers and Their Applications (ALTA 2021)!
- Title: Study of enhanced third-order optical nonlinearity by Moire superlattice in twisted bilayer graphene
(무아레 초격자에 의한 뒤틀린 두 층 그래핀의 증대된 삼차 비선형 광특성 연구)
2021.02
Our recent work was published in Light: Science & Applications (IF = 13.714, IF (%) = 2.577)!
우리 그룹의 연구 결과가 <빛: 과학과 응용, IF = 13.714, IF (%) = 2.577> 1월 21일자 온라인판에 게재되었습니다.
- Title: Enhanced third-harmonic generation by manipulating the twist angle of bilayer graphene
- Look at https://www.nature.com/articles/s41377-020-00459-5!
- Related articles featured in several newspapers:
[e-대학저널] https://www.dhnews.co.kr/news/articleView.html?idxno=136061
[뉴시스] https://newsis.com/view/?id=NISX20210201_0001325658
[헤럴드경제] http://news.heraldcorp.com/view.php?ud=20210201000730
[경인일보] http://www.kyeongin.com/main/view.php?key=20210201010000011
2020
2020.05
Prof. Dong-Il Yeom was selected as 'Ajou Top Researcher (2019학년도 연구우수교수)'!
- Look at https://www.ajou.ac.kr/kr/ajou/news.do?mode=view&articleNo=77720&article.offset=144&articleLimit=12!
2020.05
Prof. Dong-Il Yeom received '2019 Teaching Award (2019학년도 교육 우수상)' from Ajou university!
- Look at https://www.ajou.ac.kr/kr/ajou/news.do?mode=view&articleNo=77719&article.offset=144&articleLimit=12!
2019
2019.04
Seongju Ha (Ph. D. Student) received an outstanding student paper award (우수발표상) in 2019 The Korean Physical Society (KPS) Spring Meeting!
- Title: Study of third-order nonlinear optical response in stacked graphene layer
2019.02
Prof. Dong-Il Yeom won 9th Haelym-photonic engineering award (해림광자공학상, 제9호) from Optical Society of Korea (OPK)!
2018
2018.05
Jaedeok Park (M.S. Student) got an outstanding student paper award (우수학생논문상) in Advanced Lasers and Their Applications (ALTA 2018)!
- Title: All-fiber Tm-Ho codoped laser operating at 1700nm (1700nm에서 발진하는 전-광섬유 툴륨-홀뮴 첨가 광섬유 레이저)
2018.04
Seongju Ha (Ph. D. Student) received an outstanding student paper award (우수발표상) in 2018 The Korean Physical Society (KPS) Spring Meeting!
- Title: All-optical fiber modulator assisted by photo-thermal effect in graphene layer (그래핀의 광열효과를 기반으로 한 전광(all-optical) 광섬유 변조기)
2018.02
Prof. Dong-Il Yeom, Nam Hun Park (Ph. D. Student) and Seongju Ha (M.S. Student) attened and had an oral presentation in Photonics West 2018 (PW 2018)!
- Title/N.H. Park: All-fiber graphene-based electro-optic modulators with non-resonant large modulation depth
- Title/S. Ha: Highly efficient all-optical in-line modulator assisted by photo-thermal effect in monolayer graphene
2018.02
Dr. Hwanseong Jeong (M.S/Ph. D. Integrated course, 2011-2017) joined Agency for Defense Development (ADD)! Congratulations!!
우리 연구실 출신 정환성 박사 (석/박사 통합, 2011-2017)가 국방과학연구소에 최종합격하였습니다. 축하합니다!!
2017
2017.08
Our group paper was selected as Editors' Picks Collection for significant contributions in Nonlinear Optics for 40th Anniversary!
- Look at https://www.osapublishing.org/ol40/editorspicks_Nonlinear_Optics.cfm!
2017.05
Nam Hun Park (Ph. D. Student) got an outstanding student paper award (우수학생논문상) in Advanced Lasers and Their Applications (ALTA 2017)!
- Title: All-fiber graphene-based electro-optic modulators with non-resonant large modulation depth
(감쇄파의 상호작용 기반의 높은 변조세기를 가지는 그래핀-광섬유 전광 (electro-optic) 변조기)
2016
2016.07
Hwanseong Jeong (M.S/Ph. D. Integrated Student) and Taekgyu Lee (M.S. Student) won an outstanding student paper award (우수논문상) in Optical Society of Korea Summer Meeting 2016!
- Title/T. Lee: Ultrafast fiber lasers using a graphene saturable absorber on the side-polished polarization maintaining fiber
- Title/H. Jeong: Passively Q-switched normal dispersion high power ytterbium-doped fiber laser (~200mW) based on graphene satuarble absorber (그래핀 포화 흡수체 기반 고출력 (~200 mW) 정상 분산 수동 모드 잠금 이터븀 전광섬유 레이저)
2015
2015.04
Our latest work was published in Nature Communications !
- Look at https://www.nature.com/articles/ncomms7851!
2014
2014.04
Our group paper was selected as most highly cited paper in Optics Letters over the last 7 years!
- Look at https://www.osapublishing.org/ol/fulltext.cfm?uri=ol-33-7-660&id=156154!
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