Yale scientists have created a new type of silicon laser that uses sounds waves to amplify light. A study about the discovery appears June 8 in the online edition of the journal Science.
A research team led by professor YANG Jun from the Institute of Acoustics (IOA) of the Chinese Academy of Sciences designed and fabricated a 3D underwater acoustic carpet cloak (UACC) using transformation acoustics.
In a pilot study, researchers from North Carolina State University and Haverford College have used naturally arising acoustic vibrations -- or sound waves -- to monitor the state of granular materials.
Researchers at the Department of Energy's Oak Ridge National Laboratory made the first observations of waves of atomic rearrangements, known as phasons, propagating supersonically through a vibrating crystal lattice -- a discovery that may dramatically improve heat transport in insulators and enable new strategies for heat management in future electronics devices.
Scientists monitoring the vibrations of natural rock arches have found that the resonant frequencies of arches undergo dynamic changes from day to day, according to research presented at the 2018 SSA Annual Meeting.
Making tumor cells glow: medical physicists at Martin Luther University Halle-Wittenberg have developed a new method that can generate detailed three-dimensional images of the body's interior. This can be used to more closely investigate the development of cancer cells in the body. The research group presents its findings in Communication Physics, a journal published by the Nature Publishing Group.
A solid can serve as a medium for heat and sound wave interactions just like a fluid does for thermoacoustic engines and refrigerators -- resulting in leak-free machines that can stay operating longer.
Scientists are now working to take cloaking devices from the dramatic realm of science fiction and make them real. Amanda D. Hanford, at Pennsylvania State University, is taking the introductory steps to make acoustic ground cloaks. These materials redirect approaching waves around an object without scattering the wave energy, concealing the object from the sound waves. During the 175th ASA Meeting, Hanford will describe the physics behind an underwater acoustic shield designed in her lab.
Locating and discriminating sound sources is extremely complex because the brain must process spatial information from many, sometimes conflicting, cues. Using virtual reality and other immersive technologies, researchers can use new methods to investigate how we make sense of the word with sound. At the 175th ASA Meeting, G. Christopher Stecker will survey his team's use of virtual reality and augmented auditory reality to study how people use explicit and implicit sound cues.
Sorry, new parents -- even though your infants appreciate your coos, they prefer to hear sounds from their peers -- other babies. Even at the pre-babbling stage, infants recognize vowel-like sounds, but they tend to dwell on these sounds when from the mouths of babes. At the 175th ASA Meeting, researchers will present from a new line of research focusing on one aspect of infant speech development: how babies perceive speech with infant vocal properties.