D
Duk-Yong Choi
Researcher at Australian National University
Publications - 393
Citations - 12509
Duk-Yong Choi is an academic researcher from Australian National University. The author has contributed to research in topics: Brillouin scattering & Chalcogenide. The author has an hindex of 55, co-authored 389 publications receiving 9787 citations. Previous affiliations of Duk-Yong Choi include KAIST & Australian National Fabrication Facility.
Papers
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Journal ArticleDOI
Imaging-based molecular barcoding with pixelated dielectric metasurfaces.
Andreas Tittl,Aleksandrs Leitis,Mingkai Liu,Filiz Yesilkoy,Duk-Yong Choi,Dragomir N. Neshev,Yuri S. Kivshar,Hatice Altug +7 more
TL;DR: An imaging-based nanophotonic technique can resolve absorption fingerprints without the need for spectrometry, frequency scanning, or moving mechanical parts, thereby paving the way toward sensitive and versatile miniaturized mid-infrared spectroscopy devices.
Journal ArticleDOI
Producing air-stable monolayers of phosphorene and their defect engineering
Jiajie Pei,Xin Gai,Jiong Yang,Xinbin Wang,Zongfu Yu,Duk-Yong Choi,Barry Luther-Davies,Yuerui Lu +7 more
TL;DR: A new highly controllable method for fabricating high quality, air-stable phosphorene films with a designated number of layers ranging from a few down to monolayer, which could lead to new electronic and optoelectronic devices, such as electrically tunable, broadband near infrared lighting devices operating at room temperature.
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Ultrafast All-Optical Switching with Magnetic Resonances in Nonlinear Dielectric Nanostructures.
Maxim R. Shcherbakov,Polina P. Vabishchevich,Alexander S. Shorokhov,Katie E. Chong,Duk-Yong Choi,Isabelle Staude,Andrey E. Miroshnichenko,Dragomir N. Neshev,Andrey A. Fedyanin,Yuri S. Kivshar +9 more
TL;DR: It is shown that undesirable free-carrier effects can be suppressed by a proper spectral positioning of the magnetic resonance, making such a structure the fastest all-optical switch operating at the nanoscale.
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Ultrafast all-optical chalcogenide glass photonic circuits
Vahid G Ta'eed,Neil J. Baker,Libin Fu,K. Finsterbusch,Michael R. E. Lamont,David J. Moss,H.C. Nguyen,Benjamin J. Eggleton,Duk-Yong Choi,Steven J. Madden,Barry Luther-Davies +10 more
TL;DR: The key properties of Chalcogenide glasses are reviewed, including the strong photosensitivity, and several recent demonstrations of ultra-fast all-optical signal processing are focused on: optical time division multiplexing, all- optical signal regeneration and wavelength conversion.
Journal ArticleDOI
Low-power, chip-based stimulated Brillouin scattering microwave photonic filter with ultrahigh selectivity
David Marpaung,Blair Morrison,Mattia Pagani,Ravi Pant,Duk-Yong Choi,Barry Luther-Davies,Steve Madden,Benjamin J. Eggleton +7 more
TL;DR: In this paper, a chip-based MWP bandstop filter with ultrahigh suppression, high resolution in the megahertz range, and 0-30 GHz frequency tuning is presented. But the performance is limited by trade-offs between key parameters such as tuning range, resolution, and suppression.