D
Darran K. C. Wu
Researcher at Centre for Ultrahigh Bandwidth Devices for Optical Systems
Publications - 7
Citations - 852
Darran K. C. Wu is an academic researcher from Centre for Ultrahigh Bandwidth Devices for Optical Systems. The author has contributed to research in topics: Photonic crystal & Photonic-crystal fiber. The author has an hindex of 6, co-authored 7 publications receiving 785 citations. Previous affiliations of Darran K. C. Wu include University of Sydney.
Papers
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Journal ArticleDOI
Ultrasensitive photonic crystal fiber refractive index sensor
TL;DR: A refractive index sensing geometry exploiting modes beyond cutoff in a selectively infiltrated PCF demonstrates a detection limit of 4.6×10−7 RIU and sensitivity of 30,100nm/RIU, a one-order-of-magnitude improvement over previous PCF sensors.
Journal ArticleDOI
Ultrafast nonlinear optofluidics in selectively liquid-filled photonic crystal fibers.
Marius Vieweg,Timo Gissibl,Sebastian Pricking,Boris T. Kuhlmey,Darran K. C. Wu,Benjamin J. Eggleton,Harald Giessen +6 more
TL;DR: This work demonstrates full flexibility of individual closing of holes and subsequent filling of photonic crystal fibers with highly nonlinear liquids using two-photon direct-laser writing for solitonic supercontinuum generation over 600 nm bandwidth using a compact femtosecond oscillator as pump source.
Proceedings ArticleDOI
Ultra-sensitive photonic crystal fiber refractive index sensor
TL;DR: In this paper, a refractive index sensing geometry exploiting modes beyond cutoff in a selectively infiltrated PCF was introduced, achieving a detection limit of 4.6×10−7 RIU and sensitivity of 30,100nm/RIU.
Journal ArticleDOI
Microfluidic photonic crystal double heterostructures
Cameron L. C. Smith,Darran K. C. Wu,Michael W. Lee,Christelle Monat,Snjezana Tomljenovic-Hanic,Christian Grillet,Benjamin J. Eggleton,Darren Freeman,Yinlan Ruan,Steve Madden,Barry Luther-Davies,Harald Giessen,Yong-Hee Lee +12 more
TL;DR: The support of the Australian Research Council through its Federation Fellow, Centres of Excellence, Denison Foundation, and Discovery Grant programs is gratefully acknowledged as discussed by the authors, and the authors are grateful for the support.
Journal ArticleDOI
Reconfigurable microfluidic photonic crystal slab cavities
Cameron L. C. Smith,Uwe Bog,Snjezana Tomljenovic-Hanic,Michael W. Lee,Darran K. C. Wu,Liam O'Faolain,Christelle Monat,Christian Grillet,Thomas F. Krauss,Christian Karnutsch,Ross C. McPhedran,Benjamin J. Eggleton +11 more
TL;DR: The spectral and spatial reconfigurability of photonic crystal double-heterostructure cavities in silicon are demonstrated by microfluidic infiltration of selected air holes by the cavity writing technique, showing high Q-factor resonances for a broad range of cavity lengths.