Acoustic Metamaterials Through a Microfluidic, Bottom-up Approach: Toward Highly Attenuating, Negative Effective Density Materials
Abstract
Our initial idea was to build metamaterials with specific properties such as large attenuation capacities in a targeted field of frequencies. If much work has been up to now performed using centimetre-sized handmade mechanical resonators adapted to audible frequencies [1-3], fewer attempts have been made on smaller micro-resonators, in the 100 m range, i.e. for ultrasonic frequencies. Following this path, we recently proposed two different microfluidic approaches to get such micro-resonators: 1. The core-shell approach 2. The resonant emulsion approach.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 2012
- Accession Number
- ADA570364
Entities
People
- Ashod Aradian
- B. Mascaro
- J. Leng
- Oliver Mondain-monval
- S. Raffy
- T. Brunet
Organizations
- National Center for Scientific Research