Results 71 to 80 of about 779 (171)
Brief overview of the current status of the research in optics and photonics in Portugal [PDF]
, 2016 The Portuguese Optics and Photonics Society, SPOF, Sociedade Portuguesa para a Investi-gação e Desenvolvimento em Óptica e Fotónica, [1] was established in November 2009 reflecting the development of the scientific and technological research in Optics ...
Costa, Manuel F. M.
core
Merged Molecular Switches Excel as Optoacoustic Dyes: Azobenzene–Cyanines Are Loud and Photostable NIR Imaging Agents [PDF]
Optoacoustic (or photoacoustic) imaging promises micron-resolution noninvasive bioimaging with much deeper penetration (>cm) than fluorescence. However, optoacoustic imaging of enzyme activity would require loud, photostable, NIR-absorbing molecular ...
Anzenhofer, Pia +11 more
core +2 more sources
Terahertz Technology for Defense and Security-Related Applications [PDF]
, 2012 This thesis deals with chosen aspects of terahertz (THz) technology that have potential in defense and security-related applications. A novel method for simultaneous data acquisition in time-resolved THz spectroscopy experiments is developed.
Iwaszczuk, Krzysztof
core +1 more source
Optics Express, 2017 A tunable acoustic gradient (TAG) lens has been introduced in the fast axial scanning in optical imaging. However, it still needs additional imaging time for depth scanning. In this study, we split a single laser pulse into three sub-pulses and introduce them into three fibers with different lengths.
Xiaoquan Yang +3 more
openaire +1 more source
GPAIR: Gaussian-Kernel-Based Ultrafast 3D Photoacoustic Iterative Reconstruction
Although the iterative reconstruction (IR) algorithm can substantially correct reconstruction artifacts in photoacoustic (PA) computed tomography (PACT), it suffers from long reconstruction times, especially for large-scale three-dimensional (3D) imaging in which IR takes hundreds of seconds to hours.
Wang, Yibing +6 more
openaire +2 more sources
, 2023 Recent ultrafast photoemission experiments showed signatures of an ultrafast modification of the electronic band structure in FeRh indicative of a ferromagnetic (FM) state that is initiated by a non-equilibrium occupation of the electronic states upon ...
Arregi, Jon Ander +4 more
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Disentangling nucleation and domain growth during a laser-induced phase transition
, 2023 We use ultrafast x-ray diffraction and the time-resolved polar magneto-optical Kerr effect to study the laser-induced metamagnetic phase transition in two FeRh films with thicknesses below and above the optical penetration depth.
Arregi, Jon Ander +5 more
core
A multi-aperture encoding scheme for increased SNR in photoacoustic Imaging [PDF]
Photoacoustic imaging creates light-induced ultrasonic signals to provide valuable information on internal body structures and tissue morphology non-invasively.
Cano, Camilo +5 more
core +1 more source
Tuning photoacoustics with nanotransducers via Thermal Boundary Resistance and Laser Pulse Duration
The photoacoustic effect in liquids, generated by metal nanoparticles excited with short laser pulses, offers high contrast imaging and promising medical treatment techniques.
Banfi, Francesco +8 more
core +1 more source