Hydrogel microphones for stealthy underwater listening
oleh: Yang Gao, Jingfeng Song, Shumin Li, Christian Elowsky, You Zhou, Stephen Ducharme, Yong Mei Chen, Qin Zhou, Li Tan
| Format: | Article |
|---|---|
| Diterbitkan: | Nature Portfolio 2016-08-01 |
Deskripsi
Conventional ceramic SONAR suffers from large acoustic impedance mismatch with water, rendering them easily detectable. Here, Gao et al. report a new design using a hydrogel filled with stimuli-responsive metal nanoparticles, which detects low-frequency sound with a high-sensitivity and zero-reflection.