High‐intensity focused ultrasound (HIFU) ablation by the frequency chirps: Enhanced thermal field and cavitation at the focus
Sign Up to like & getrecommendations! Published in 2019 at "Ultrasonics"
DOI: 10.1016/j.ultras.2018.08.017
Abstract: HighlightsFrequency chirps don’t affect the average acoustic field.Stronger bubble expansion and cavitation‐enhanced heating could be generated.Lesion production is enhanced in both gel phantom and ex vivo tissue samples.Such enhancement is preferable for large frequency sweeping… read more here.
Keywords: hifu; cavitation; frequency sweeping; frequency ... See more keywords
A Method Based on Time-Scale Factor for Correcting the Nonlinear Frequency Sweeping in an OFDR System
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DOI: 10.1109/jphot.2019.2919775
Abstract: A data processing method for correcting the frequency sweeping nonlinearity of a tunable laser in an optical frequency domain reflectometry system is presented. The proposed method calibrates the positions of all the data points by… read more here.
Keywords: frequency sweeping; system; frequency; method ... See more keywords
High Ranging Accuracy and Wide Detection Range Interferometry Based on Frequency-Sweeping Technique With Vital Sign Sensing Function
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Microwave Theory and Techniques"
DOI: 10.1109/tmtt.2018.2854177
Abstract: In this paper, an interferometry-based frequency-sweeping technique has been developed and demonstrated. With this approach, the distance ambiguity problem in the traditional interferometer is solved. The relationship involving the used carrier number, noise and standing… read more here.
Keywords: detection; frequency sweeping; frequency; interferometry based ... See more keywords
Phase noise elimination in frequency sweeping interferometry based on a common-path interferometer.
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DOI: 10.1364/ol.468996
Abstract: We propose a common-path interferometer (CPI) method to suppress the ambient and laser phase noise in frequency sweeping interferometry. The CPI realizes the multiplexing of the main and auxiliary interferometer to ensure the common-mode characteristic… read more here.
Keywords: path interferometer; interferometer; frequency sweeping; phase noise ... See more keywords