Details

Autor(en) / Beteiligte

• He, Zhaojian
• Jia, Han
• Qiu, Chunyin
• Peng, Shasha
• Mei, Xuefei
• Cai, Feiyan
• Peng, Pai
• Ke, Manzhu
• Liu, Zhengyou

Titel

Acoustic transmission enhancement through a periodically structured stiff plate without any opening

Ist Teil von

• Physical review letters, 2010-08, Vol.105 (7), p.074301-074301, Article 074301

Ort / Verlag

United States

Erscheinungsjahr

2010

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• We report both experimentally and theoretically that enhanced acoustic transmission can occur in the subwavelength region through a thin but stiff structured plate without any opening. This exotic acoustic phenomenon is essentially distinct from the previous related studies originated from, either collectively or individually, the interaction of the incident wave with openings in previous structures. It is attributed to the structure-induced resonant excitation of the nonleaky Lamb modes that exist intrinsically in the uniform elastic plate. Our finding should have an impact on ultrasonic applications.