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) (a) Schematic diagram of reflected AF lens based on Bessel-like beam. (b) Discrete phase distribution of 81 units (red hollow circles) of designed AF lens. Blue lines in panel (b) represent theoretical continuous phase delays.