Deep-Subwavelength-Optimized Holey-Structured Metamaterial Lens for Nonlinear Air-Coupled Ultrasonic Imaging. - Marco Boccaccio; Pasquale Rachiglia; Gian Piero Malfense Fierro; Giovanni Pio Pucillo; Michele Meo (Sensors, 2021)

Nonlinear Ultrasonic Imaging for Porosity Evaluation. - Mario Emanuele De Simone; Salvatore Boccardi; Gian Piero Malfense Fierro; Michele Meo (Sensors, 2023)