2008
DOI: 10.1016/j.physleta.2007.08.015
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Strongly frequency-dependent negative refraction of a two-dimensional sonic crystal wedge

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Cited by 6 publications
(3 citation statements)
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“…Although it is not efficient for a high resolution acoustic imaging application, it might be beneficial to acoustic energy transmission applications (Kasai et al, 2011). The frequency dependence of the negative refraction was demonstrated in previous works (Qiu et al, 2005;Jia, Zhang, 2007;Alagoz et al, 2009). This strong dependence on the wave frequency makes also the focusing phenomenon of a flat lens strongly dependent on the frequency of the acoustic wave source.…”
Section: Resultsmentioning
confidence: 94%
“…Although it is not efficient for a high resolution acoustic imaging application, it might be beneficial to acoustic energy transmission applications (Kasai et al, 2011). The frequency dependence of the negative refraction was demonstrated in previous works (Qiu et al, 2005;Jia, Zhang, 2007;Alagoz et al, 2009). This strong dependence on the wave frequency makes also the focusing phenomenon of a flat lens strongly dependent on the frequency of the acoustic wave source.…”
Section: Resultsmentioning
confidence: 94%
“…The frequency dependence of the negative refraction index was discussed in previous work [2,14,17,21]. This dependence allows the estimation of the ERI of the flat lens by using the focal length of flat lenses.…”
Section: Estimating Negative Refraction Index By Measuring the Focal ...mentioning
confidence: 99%
“…Şekil 4(b)'de ise dalga frekansı düşürülerek birinci iletim bandında elde edilen pozitif kırınım simülasyon sonuçları görülmektedir. Bu durum bize, kristal yapının göstereceği efektif kırılma indisinin değerinin, kristale gelen dalganın frekansına bağlı değiştiğini göstermektedir(Jia and Zhang, 2007).…”
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