A programmable acoustic metamaterial: achieving untethered ultra-broadband modulation with photoactive structural transition

Key Points

• Ultra-broadband modulation achieves enhanced noise attenuation capabilities, opening new avenues for acoustic solutions.
• Key evidence shows significant improvement in sound control through structural transitions, enhancing performance across varied environments.
• Based on a programmable acoustic metamaterial design, the approach utilizes photoactive mechanisms to enable efficient noise management.
• This innovation may address low-frequency noise pollution issues, prompting further exploration of adaptive acoustic technologies.