Physics – Biological Physics
Scientific paper
2005-06-09
Physics
Biological Physics
15 pages, 8 figures
Scientific paper
10.1088/0031-9155/50/21/007
Ultra-wideband (UWB) electromagnetic pulses of nanosecond duration, or nanopulses, have been recently approved by the Federal Communications Commission for a number of various applications. They are also being explored for applications in biotechnology and medicine. The simulation of the propagation of a nanopulse through biological matter, previously performed using a two-dimensional finite difference-time domain method (FDTD), has been extended here into a full three-dimensional computation. To account for the UWB frequency range, a geometrical resolution of the exposed sample was $0.25 mm$, and the dielectric properties of biological matter were accurately described in terms of the Debye model. The results obtained from three-dimensional computation support the previously obtained results: the electromagnetic field inside a biological tissue depends on the incident pulse rise time and width, with increased importance of the rise time as the conductivity increases; no thermal effects are possible for the low pulse repetition rates, supported by recent experiments. New results show that the dielectric sample exposed to nanopulses behaves as a dielectric resonator. For a sample in a cuvette, we obtained the dominant resonant frequency and the $Q$-factor of the resonator.
No associations
LandOfFree
Three-Dimensional FDTD Simulation of Biomaterial Exposure to Electromagnetic Nanopulses does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Three-Dimensional FDTD Simulation of Biomaterial Exposure to Electromagnetic Nanopulses, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Three-Dimensional FDTD Simulation of Biomaterial Exposure to Electromagnetic Nanopulses will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-170916