Zobrazeno 1 - 10
of 12
pro vyhledávání: '"ocis:(110.5125) Photoacoustics"'
Publikováno v:
Biomedical Optics Express
A miniature, directional fibre-optic acoustic source is presented that employs geometrical focussing to generate a nearly-collimated acoustic pencil beam. When paired with a fibre-optic acoustic detector, an all-optical ultrasound probe with an outer
Publikováno v:
Biomedical Optics Express
We report on simultaneous frequency domain optical-resolution photoacoustic and fluorescence microscopy with sub-µm lateral resolution. With the help of a blood smear, we show that photoacoustic and fluorescence images provide complementary informat
Autor:
Joanna, Brunker, Paul, Beard
Publikováno v:
Biomedical Optics Express
Acoustic resolution photoacoustic Doppler velocimetry promises to overcome the spatial resolution and depth penetration limitations of current blood flow measuring methods. Despite successful implementation using blood-mimicking fluids, measurements
Publikováno v:
Biomedical Optics Express
The feasibility of detecting red blood cell (RBC) aggregation with photoacoustics (PAs) was investigated theoretically and experimentally using human and porcine RBCs. The theoretical PA signals and spectra generated from such samples were examined f
Autor:
Carolyn L. Bayer, Konstantin V Sokolov, Seungsoo Kim, Yun Sheng Chen, Srivalleesha Mallidi, Stanislav Emelianov
Publikováno v:
Biomedical Optics Express
The establishment of multiplex photoacoustic molecular imaging to characterize heterogeneous tissues requires the use of a tunable, thermally stable contrast agent targeted to specific cell types. We have developed a multiplex photoacoustic imaging t
Publikováno v:
Biomedical Optics Express
Chen, Bo; Estrada, Laura C.; Hellriegel, Christian; & Gratton, Enrico. (2011). Nanometer-scale optical imaging of collagen fibers using gold nanoparticles. Biomedical Optics Express, 2(3), 511-519. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/1ft2k4x5
Chen, Bo; Estrada, Laura C.; Hellriegel, Christian; & Gratton, Enrico. (2011). Nanometer-scale optical imaging of collagen fibers using gold nanoparticles. Biomedical Optics Express, 2(3), 511-519. UC Irvine: Retrieved from: http://www.escholarship.org/uc/item/1ft2k4x5
We describe 3D single particle tracking of gold nanoparticles (AuNPs) moving along collagen fibers in aqueous environment with two-photon excitation conditions. The photoacoustic effect at the collagen fiber caused by the irradiation with ultrashort,
Publikováno v:
Biomedical Optics Express
While the majority of photoacoustic imaging systems used custom-made transducer arrays, commercially-available linear transducer arrays hold the benefits of affordable price, handheld convenience and wide clinical recognition. They are not widely use
Autor:
Thomas Lenarz, Peter Baumhoff, Ingo Ulrik Teudt, M. Schultz, Hannes Maier, Andrej Kral, A. Krüger
Publikováno v:
Biomedical Optics Express
Optical stimulation of the inner ear, the cochlea, is discussed as a possible alternative to conventional cochlear implants with the hypothetical improvement of dynamic range and frequency resolution. In this study nanosecond-pulsed optical stimulati
Autor:
Shuliang Jiao, Xiangyang Zhang, Hao Zhang, Fan Zheng, Bill L. Zhou, K. Kirk Shung, Chi Tat Chiu
Publikováno v:
Biomedical Optics Express
In this paper, we report our latest progress on proving the concept that ultrasonic phased array can improve the detection sensitivity and field of view (FOV) in laser-scanning photoacoustic microscopy (LS-PAM). A LS-PAM system with a one-dimensional
Publikováno v:
Biomedical Optics Express
We developed a high-resolution photoacoustic microscopy (PAM) system with a near-infrared (NIR) laser to noninvasively monitor the distribution of gold nanostar (GNS) in blood vessels, liver and spleen in mice. Photoacoustic images of organs at deep