Jun
16

Webinar – Biological acoustic metamaterials by Dr. Marc Holderied (University of Bristol)

Date
16 June 2020

Time
2:00 pm - 3:30 pm

Location
Webinar - connect via Go To Meeting

Providing healthy living and working environments in our ever-noisier world necessitates increasing use of noise control technology. The rapidly expanding field of acoustic metamaterials has led to the emergence of ultrathin subwavelength sound absorbing methods, allowing sound insulation to be thinner and lighter than ever before. We will present our discovery of a natural acoustic metamaterial and show our ongoing work towards bioinspired metamaterial absorbers. Our bioinspiration arises from the 65-million-year acoustic arms race between echolocating bats and their moth prey, which has turned the wing scales of moths into an omnidirectional, ultrathin (1/100 λ) and broadband absorber of ultrasound (peak α = 0.71) that provides acoustic camouflage against bats. Our lithographically produced up-sized scale replicas absorb sound and can resonate at the most important frequencies for human communication. This research paves the way for bioinspired novel broadband sound absorbers that are substantially thinner and lighter than current technical solutions – using clues from nature to inform the design of the next wave of advanced noise control solutions.

Please join my meeting from your computer, tablet or smartphone.
https://global.gotomeeting.com/join/905104821

You can also dial in using your phone.
United Kingdom: +44 330 221 0097

Access Code: 905-104-821

New to GoToMeeting? Get the app now and be ready when your first meeting starts:
https://global.gotomeeting.com/install/905104821

Posted on 30th May 2020 in Events, Bioacoustics (SIGBio), Metamaterials, Physical Acoustics