Three-dimensional Travel-time Calculation Based on Fermat’s Principle

2002 ◽  
pp. 1563-1582
Author(s):  
Valentin Meshbey ◽  
Evgeny Ragoza ◽  
Dan Kosloff ◽  
Uzi Egozi ◽  
Tal Wexler
Keyword(s):  
Travel Time ◽  
Three Dimensional ◽  
Time Calculation ◽  
Fermat’S Principle ◽  
Fermat's Principle

Three-dimensional Travel-time Calculation Based on Fermat's Principle

2002 ◽  
Vol 159 (7-8) ◽  
pp. 1563-1582 ◽  
Author(s):  
V. Meshbey ◽  
E. Ragoza ◽  
D. Kosloff ◽  
U. Egozi ◽  
T. Wexler
Keyword(s):  
Travel Time ◽  
Three Dimensional ◽  
Time Calculation ◽  
Fermat’S Principle ◽  
Fermat's Principle

Three‐dimensional travel time calculation using mono‐chromatic three‐dimensional one‐way wave equation

2001 ◽  
Author(s):  
Changsoo Shin ◽  
Wonsik Kim ◽  
Kwangjin Yoon ◽  
Soonduk Hong ◽  
Sungryul Shin ◽  
...  
Keyword(s):  
Wave Equation ◽  
Travel Time ◽  
Three Dimensional ◽  
Time Calculation

Quantitative OCT image correction using Fermat's principle and mapping arrays

2002 ◽  
Author(s):  
Volker Westphal ◽  
Sunita Radhakrishnan ◽  
Andrew M. Rollins ◽  
Joseph A. Izatt
Keyword(s):  
Image Correction ◽  
Fermat’S Principle ◽  
Fermat's Principle ◽  
Mapping Arrays ◽  
Oct Image

Three-Dimensional Acoustic Travel-Time Tomography of the Atmosphere

2008 ◽  
Vol 94 (3) ◽  
pp. 349-358 ◽  
Author(s):  
Sergey N. Vecherin ◽  
Vladimir E. Ostashev ◽  
Keith D. Wilson
Keyword(s):  
Travel Time ◽  
Three Dimensional ◽  
Travel Time Tomography ◽  
Acoustic Travel Time

scholarly journals Fermat’s principle in black-hole spacetimes

2018 ◽  
Vol 27 (14) ◽  
pp. 1847025 ◽  
Author(s):  
Shahar Hod
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Black Hole Spacetimes ◽  
Fermat’S Principle ◽  
Kerr Black Holes ◽  
Fermat's Principle ◽  
Asymptotic Observers

Black-hole spacetimes are known to possess closed light rings. We here present a remarkably compact theorem which reveals the physically intriguing fact that these unique null circular geodesics provide the fastest way, as measured by asymptotic observers, to circle around spinning Kerr black holes.

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