Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Dylan M. Marques"'
Autor:
David Martin-Sanchez, Jing Li, Dylan M. Marques, Edward Z. Zhang, Peter R. T. Munro, Paul C. Beard, James A. Guggenheim
Publikováno v:
Optics express. 30(26)
A numerical model of Gaussian beam propagation in planar Fabry-Perot (FP) etalons is presented. The model is based on the ABCD transfer matrix method. This method is easy to use and interpret, and readily connects models of lenses, mirrors, fibres an
Publikováno v:
Optics express. 29(15)
Fabry-Perot (FP) etalons are used as filters and sensors in a range of optical systems. The reflected and transmitted fields associated with an FP etalon have traditionally been predicted by the Airy function, which assumes a plane wave illumination.
Autor:
M. Cherkashin, Dylan M. Marques, Edward Z. Zhang, B. Keenlyside, Peter R. T. Munro, Paul C. Beard, James A. Guggenheim
Publikováno v:
2021 IEEE Photonics Conference (IPC).
Performing high-resolution photoacoustic (PA) imaging through an endoscope could unlock a range of new biomedical and clinical applications. However, producing sub-mm scale ultrasonic sensors at the distal tip as required to detect PA signals is chal
Publikováno v:
2021 IEEE Photonics Conference (IPC).
Planar Fabry-Perot-based ultrasound sensors are highly sensitive for their small element size when interrogated with focused Gaussian beams. Here we announce the development of two models that can characterize the circumstances under which a Bessel i
Publikováno v:
Optics Express. 30:46294
We present a model that calculates optical fields reflected and transmitted by a Fabry-Perot (FP) etalon composed of interfaces with non-planar surface topography. The model uses the Rayleigh-Rice theory, which predicts the fields reflected and trans
Publikováno v:
Optics express. 29(14)
Fabry-Perot (FP) etalons, composed of two parallel mirrors, are used widely as optical filters and sensors. In certain applications, however, such as when FP etalons with polymer cavities are used to detect ultrasound, the mirrors may not be perfectl
Autor:
Peter R. T. Munro, Edward Z. Zhang, David Martin-Sanchez, Paul C. Beard, Dylan M. Marques, James A. Guggenheim
Publikováno v:
Photons Plus Ultrasound: Imaging and Sensing 2021.
The impact of optical absorption in the spacer layer of Fabry-Perot (FP) ultrasound sensors is discussed. It is shown that absorption significantly limits the sensitivity of planoconcave microresonators (PCMRs; FP type sensors with a planoconcave geo
Autor:
Benjamin Keenlyside, Maxim N. Cherkashin, Peter R. T. Munro, Edward Z. Zhang, James A. Guggenheim, Paul C. Beard, Dylan M. Marques
Publikováno v:
Adaptive Optics and Wavefront Control for Biological Systems VII.
There has been considerable interest in extending photoacoustic imaging techniques to endoscopic devices, which would enable a diverse range of applications, e.g. assessment of coronary artery disease or surgical guidance. However, the difficulty of
Autor:
Edward Z. Zhang, Peter R. T. Munro, David Martin-Sanchez, Paul C. Beard, James A. Guggenheim, Dylan M. Marques
Publikováno v:
Photons Plus Ultrasound: Imaging and Sensing 2021.
Deep tissue applications (>1 cm) for photoacoustic imaging are currently limited for traditional Fabry-Perot ultrasound transducers interrogated by tightly focused Gaussian beams due to beam walk-off. We investigate the optical confinement of the bea
Publikováno v:
Three-Dimensional and Multidimensional Microscopy: Image Acquisition and Processing XXVIII.
We present Jolab: an open source package for performing full-wave simulation of light propagation in optical systems. Jolab enables a very broad range or researchers, engineers and practitioners to simulate light propagation through complex optical s