Seabed classification in the Gulf of Alaska from acoustic surveys using deep learning
Limnology and Oceanography: Methods, EarlyView.Abstract High‐resolution mapping of seafloor habitats has wide applications for fisheries, conservation efforts, offshore infrastructure planning, mineral extraction, and scientific modeling. This study leverages existing widespread single‐beam acoustic data and machine learning to create habitat maps for the Gulf of Alaska at a spatial resolution of ...
Karuna Agarwal +2 more
wiley +1 more source
Steerable High‐Resolution Ultrasound Focusing via Phase‐Array‐Activated Acoustic Meta‐Lenses
Advanced Physics ResearchHigh‐precision dynamic manipulation of 3D acoustic fields is a challenge in acoustics, crucial for applications from high‐resolution imaging to targeted therapy.
Xin‐Yu Cui +7 more
doaj +1 more source
Realization of an ultrathin acoustic lens for subwavelength focusing in the megasonic range. [PDF]
Sci Rep, 2018 Hyun J +5 more
europepmc +1 more source
Limnology and Oceanography: Methods, EarlyView.Abstract Understanding a population's distribution depends on observing the presence and movement of individuals throughout their range. For highly mobile marine species, these observations typically rely on high effort monitoring programs. Tracking enough individuals to understand trends in movement behavior is not always logistically feasible, and ...
Abigail M. Kreuser +3 more
wiley +1 more source
Two-sided residual refocusing for an acoustic lens-based photoacoustic imaging system. [PDF]
Phys Med Biol, 2018 Francis KJ +5 more
europepmc +1 more source
Optical Skyrmions with Tunable or Reconfigurable Topology Using Spin‐Decoupled Metaoptics
Laser &Photonics Reviews, EarlyView.The work introduces advanced optical elements capable of generating and dynamically reconfiguring complex light patterns known as optical skyrmions. By precisely shaping light polarization at the nanoscale, a single engineered metasurface can generate and manipulate robust and tunable polarization textures in an efficient and scalable way.
Andrea Vogliardi +5 more
wiley +1 more source
An Investigation on Acoustic Wave Focalization by a Square Lattice Flat Lens
Archives of Acoustics, 2013 A sonic crystal consists of a finite-size periodic array of scatters embedded in a background material. One of the fascinating properties of sonic crystals is the focusing phenomenon.
Serkan ALAGOZ
doaj
Development of an Estimation Instrument of Acoustic Lens Properties for Medical Ultrasound Transducers. [PDF]
J Healthc Eng, 2017 Choi H, Jeong JJ, Kim J.
europepmc +1 more source
In Situ Acoustic Monitoring of Focused Femtosecond Pulse Duration in Air
Laser &Photonics Reviews, EarlyView.Air‐breakdown acoustics at the laser focus is used to determine femtosecond pulse duration with a simple USB microphone. By chirp‐tuning and compressing 1030 nm pulses from 241 to 50 fs, the acoustic amplitude scales inversely proportional to the square root of the pulse duration, enabling in situ readout over 50 fs–5 ps—crucial for precise pulse ...
Indrė Meškėlaitė +9 more
wiley +1 more source
Design and evaluation of a compound acoustic lens for photoacoustic computed tomography. [PDF]
Biomed Opt Express, 2017 Yang S +6 more
europepmc +1 more source