Optofluidic waveguide as a transformation optics device for lightwave bending and manipulation

Y. Yang, A. Q. Liu, L. K. Chin, Xuming Zhang, D. P. Tsai, C. L. Lin, Chao Lu, G. P. Wang, N. I. Zheludev

Research output: Journal article publicationJournal articleAcademic researchpeer-review

169 Citations (Scopus)


Transformation optics represents a new paradigm for designing light-manipulating devices, such as cloaks and field concentrators, through the engineering of electromagnetic space using materials with spatially variable parameters. Here we analyse liquid flowing in an optofluidic waveguide as a new type of controllable transformation optics medium. We show that a laminar liquid flow in an optofluidic channel exhibits spatially variable dielectric properties that support novel wave-focussing and interference phenomena, which are distinctively different from the discrete diffraction observed in solid waveguide arrays. Our work provides new insight into the unique optical properties of optofluidic waveguides and their potential applications.
Original languageEnglish
Article number651
JournalNature Communications
Publication statusPublished - 13 Feb 2012

ASJC Scopus subject areas

  • General Chemistry
  • General Biochemistry,Genetics and Molecular Biology
  • General Physics and Astronomy


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