Journal
OPTICS LETTERS
Volume 44, Issue 21, Pages 5310-5313Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.44.005310
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Funding
- Ministry of Science and Technology, Taiwan [107-2112-M-259-007-MY3, 105-2628-M-007-003-MY4, MOST108-2119-M-009-003]
- Australian Research Council
- UNSW Scientia Fellowship
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With the wave interferometric approach, we study how extrinsically coherent waves excitation can dramatically alter the overall scattering properties, resulting in tailoring the energy assignment between radiation and dissipation, as well as filtering multipolar resonances. As an illustration, we consider cylindrical passive systems encountered by arbitrary configurations of incident waves with various illuminating directions, phases, and intensities. With formulas for dissipation and radiation powers, we demonstrate that a coherent superposition of incident waves extrinsically interferes with the targeted channels in a desirable way. Moreover, the interferometric results can be irrespective of inherent system properties such as size, material, and structure. Our approach paves a non-invasive solution to manipulate wave-obstacle interaction at will. (C) 2019 Optical Society of America
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