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    Title: Characterization of photonic nanojets in dielectric microdisks
    Other Titles: 在介電微米圓盤中光子奈米噴流的特性研究
    Authors: Cheng-Yang Liu;Chien-Jung Chen
    Contributors: 淡江大學機械與機電工程學系
    Keywords: Photonic nanojet;Microdisk;Microscopy
    Date: 2015-09
    Issue Date: 2015-07-01 16:39:59 (UTC+8)
    Publisher: Elsevier BV * North-Holland
    Abstract: The direct imaging of photonic nanojets in different dielectric microdisks illuminated by a laser source is reported. The SiO2 and Si3N4 microdisks are of height 650 nm with diameters ranging from 3 μm to 8 μm. The finite-difference time-domain calculation is used to execute the numerical simulation for the photonic nanojets in the dielectric microdisks. The photonic nanojet measurements are performed with a scanning optical microscope system. The photonic nanojets with high intensity spots and low divergence are observed in the dielectric microdisks illuminated from the side with laser source of wavelengths 405 nm, 532 nm and 671 nm. The experimental results of key parameters are compared to the simulations and in agreement with theoretical results. Our studies show that photonic nanojets can be efficiently created by a dielectric microdisk and straightforwardly applied to nano-photonics circuit.
    Relation: Physica E: Low-dimensional Systems and Nanostructures 73, pp.226-234
    DOI: 10.1016/j.physe.2015.06.005
    Appears in Collections:[機械與機電工程學系暨研究所] 期刊論文

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