Thermoacoustic-reflected focusing lens based on acoustic Bessel-like beam with phase manipulation<xref rid="cpb_27_12_124301fn1" ref-type="fn">*</xref><fn id="cpb_27_12_124301fn1"><label>*</label><p>Project supported by the National Natural Science Foundation of China (Grant Nos. 11774137 and 51779107), the Six-Talent Peaks Project in Jiangsu Province, China (Grant No. GDZB-019), the China Postdoctoral Science Foundation (Grant No. 2017M621643), the Natural Science Foundation of Jiangsu Higher Educational Institutions of China (Grant No. 18KJB140003), and the Practice Innovation Training Program Projects for Jiangsu University (Grant No. 201710299023Z) and for the Industrial Center of Jiangsu University.</p></fn>

Thermoacoustic-reflected focusing lens based on acoustic Bessel-like beam with phase manipulation**

Project supported by the National Natural Science Foundation of China (Grant Nos. 11774137 and 51779107), the Six-Talent Peaks Project in Jiangsu Province, China (Grant No. GDZB-019), the China Postdoctoral Science Foundation (Grant No. 2017M621643), the Natural Science Foundation of Jiangsu Higher Educational Institutions of China (Grant No. 18KJB140003), and the Practice Innovation Training Program Projects for Jiangsu University (Grant No. 201710299023Z) and for the Industrial Center of Jiangsu University.

Hou An-Ru^{1, †}, Gao Wen-Ting^{1, †}, Qian Jiao^{1, †}, Sun Hong-Xiang^{1, 2, 3, ‡}, Ge Yong^{1, 2, §}, Yuan Shou-Qi¹, Si Qiao-Rui¹, Liu Xiao-Jun^{2, 3}

(color online) Theoretical continuous phase delays (blue line) and discrete phase delays (red hollow dots) of reflected AF lenses with base angles (a) 6°, (b) 12°, and (c) 15°. Spatial distributions of reflected intensity field induced by reflected AF lenses with base angles (d) 6°, (e) 12°, and (f) 15° at 5.0 kHz. Red arrows in panels (d), (e), and (f) refer to incident acoustic waves.