Results 131 to 140 of about 43,829 (291)

Optimized Coherence Masking Improves Ultrasound Imaging of Kidney Cysts

Journal of Ultrasound in Medicine, EarlyView.
Objectives Renal cystic lesions are exceedingly common and typically benign, though accurate diagnostic techniques are required to recognize the subset of malignant lesions that require timely intervention. Ultrasound (US) is the preferred first line test for renal cyst evaluation because it is safe, widely accessible, and low cost. US imaging, however,
Scott Schoen Jr, Theodore T. Pierce, Sai Dhanush Reddy Jeggari, Abder‐Rhaman Ali, Kai E. Thomenius, Michael Wang, Brian Lause, Rimon Tadross, Kathleen Pope, David Hunt, Mary K. Peters, Mike Washburn, Anthony E. Samir   +12 more
wiley   +1 more source

Photoacoustic Microscopy [PDF]

, 1981
Recent advances in scanning photoacoustic microscopy (SPAM) for NDE are described. Conventional and phase-contrast modes are used to detect a well-characterized subsurface flaw in Al, and the results are shown to be in good agreement with calculations ...
Pouch, J, Favro, L, Thomas, R, Kuo, P, Inglehart, L., Thomas, R., Inglehart, L, Kuo, P., Favro, L., Pouch, J.   +9 more
core  

A Reversible Clearing Strategy Enables Robust Label‐Free Phase Imaging of Thick Tissues

Laser &Photonics Reviews, EarlyView.
The principle of a reversible clearing strategy via glycerol and tartrazine solution (GTS) for robust whole‐slide label‐free phase imaging of thick tissue slices via high‐throughput Fourier ptychographic microscopy (FPM) and lensless digital holographic microscopy (LDHM). ABSTRACT Thick biological specimens impose strong scattering and attenuation that
Mikołaj Krysa, Anna Chwastowicz, Małgorzata Lenarcik, Paweł Matryba, Piotr Zdańkowski, Maciej Trusiak   +5 more
wiley   +1 more source

Photoacoustic stress [PDF]

, 1979
The theory for photoacoustic-induced stress in condensed media is developed both for near-field and far-field ...
Scheimer, James F., Rosencwaig, Allan
core  

Scalable Large Field‐of‐view 3D Photoacoustic Ultrasound Imaging With Digital Multiplexing for Human Extremities

Laser &Photonics Reviews, EarlyView.
A digitally multiplexed, large‐aperture photoacoustic and ultrasound imaging architecture is presented to overcome the fundamental limited‐view artifact inherent in conventional arrays. By significantly broadening the structural detection coverage, this scalable platform enables high‐fidelity 3D visualization of human extremities within a single ...
Sinyoung Park, Minsik Sung, Hyunhee Kim, Kijong Lee, Joongho Ahn, Eun‐Yeong Park, Sungsik Park, Hyung Ham Kim, Chulhong Kim   +8 more
wiley   +1 more source

Spatiospectral Photoacoustic Microscopy With Gain‐Switched Ti:Sapphire Laser for High‐Accuracy Molecular Dynamics Imaging

Laser &Photonics Reviews, EarlyView.
Spatiospectral photoacoustic microscopy is enabled by stable, wavelength‐tunable dual‐pulse excitation from a gain‐switched Ti:sapphire laser. Intrinsically synchronized 532‐nm and NIR‐I pulses provide single‐scan, co‐registered mapping of oxygen saturation and indocyanine green dynamics in vivo.
Yong‐Jae Lee, Thanh Dat Le, Dong Hoon Song, Jin Hee Im, Seong‐Young Kwon, Tae Young Jeong, Jung‐Joon Min, Changho Lee, Tae Joong Eom   +8 more
wiley   +1 more source

High-pressure photoacoustic calorimetry

, 2000
A high-pressure photoacoustic calorimeter has been developed to operate up to 200 MPa. Photoacoustic calorimetry can be used to study the microsecond kinetics and thermodynamics of reactions in solution.
Gerard J. Farrell, Burkey, Theodore J., Farrell, Gerard J., John A. Daffron, Theodore J. Burkey, Daffron, John A.   +5 more
core   +1 more source

Tunable, High Pulse Energy and Narrow Linewidth Gas‐Filled Fiber Laser Across Near‐ and Mid‐Infrared

Laser &Photonics Reviews, EarlyView.
A cascaded gas‐filled anti‐resonant hollow‐core fiber architecture enables broadly tunable infrared Raman lasers spanning ∼1.4–4.6 µm while maintaining microjoule‐level pulse energies and gigahertz‐level linewidths. The approach combines a wavelength‐tunable pump laser with optimized Raman frequency conversion, providing a compact route to high ...
Yazhou Wang, Marcello Meneghetti, Manoj K. Dasa, Timothy Bate, J. E. Antonio‐Lopez, Ian A. Davidson, Qiang Fu, Jaroslaw Rzegocki, Gregory T. Jasion, Francesco Poletti, Rodrigo Amezcua‐Correa, Christos Markos   +11 more
wiley   +1 more source

Optical Stimulation and Monitoring of the Peripheral Nervous System: Perspectives and Challenges Toward Clinical Translation

Laser &Photonics Reviews, EarlyView.
Optical neuromodulation with IR light allows stimulation of the PNS without the need for physical contact with the target nerve or without requiring any genetic modification. The clinical translation of this technique will pave the way to the development of neural interfaces for restoring sensory feedback in individuals with limb amputation.
Federica Piccirillo, Sarassunta Ucci, Anna Aliberti, Patrizio Vaiano, Alessia La Rocca, Francesca Angelone, Silvia Pascarella, Pellegrino Lippiello, Maria Concetta Miniaci, Giuseppe Prisco, Michela Russo, Francesco Amato, Deyanira Contartese, Milena Fini, Gianluca Giavaresi, Lucia Martini, Francesco Rosa, Cosimo Gentile, Emanuele Gruppioni, Armando Ricciardi, Andrea Cusano   +20 more
wiley   +1 more source

Migration of Erucamide in Polyethylene Film

Polymer Engineering &Science, EarlyView.
Erucamide migration in polyethylene films as a function of time and temperature, evaluated by FTIR‐PAS and correlated with changes in surface morphology and contact angle. ABSTRACT Erucamide is a migratory slip agent widely used in polyethylene (PE) films for flexible packaging applications, particularly those processed on high‐speed filling and ...
Kelly Cristina Maziero, Luís Carlos Malacarne, Monique de Souza, Raquel da Silva Palácios, Mauro Luciano Baesso, Alessandro Francisco Martins, Elisângela Corradini, Edvani Curti Muniz   +7 more
wiley   +1 more source