@inproceedings{HoParkEckhoffetal.2013, author = {Min-Chieh Ho and Kwan Kyu Park and Kristian Eckhoff and Mario Kupnik and Butrus T. Khuri-Yakub}, title = {Air-coupled CMUTs operating at ambient pressures ranging from 1 to 20 atm}, booktitle = {Proceedings, 2013 IEEE International Ultrasonics Symposium}, pages = {1412 -- 1415}, doi = {10.1109/ULTSYM.2013.0358}, year = {2013}, }