TY - JOUR
T1 - Asymptotic estimation of the optical wave propagator. I. Derivation of a new method
AU - Alonso, M. A.
AU - Forbes, G. W.
PY - 1998
Y1 - 1998
N2 - A new method is proposed for modeling wave propagation in two-dimensional, smoothly varying inhomogeneous media. This method is valid in the limit of small wavelength and constructs the wave propagator by combining contributions from all relevant rays. The form of each contribution was reported in J. Opt. Soc. Am. A 14, 1279 (1997). The resulting estimate for the total field takes a strikingly simple form, which associates a Gaussian field with each ray. This form is asymptotically correct and free of the usual difficulties associated with caustics.
AB - A new method is proposed for modeling wave propagation in two-dimensional, smoothly varying inhomogeneous media. This method is valid in the limit of small wavelength and constructs the wave propagator by combining contributions from all relevant rays. The form of each contribution was reported in J. Opt. Soc. Am. A 14, 1279 (1997). The resulting estimate for the total field takes a strikingly simple form, which associates a Gaussian field with each ray. This form is asymptotically correct and free of the usual difficulties associated with caustics.
UR - http://www.scopus.com/inward/record.url?scp=0037627093&partnerID=8YFLogxK
U2 - 10.1364/JOSAA.15.001329
DO - 10.1364/JOSAA.15.001329
M3 - Article
AN - SCOPUS:0037627093
SN - 1084-7529
VL - 15
SP - 1329
EP - 1340
JO - Journal of the Optical Society of America A: Optics and Image Science, and Vision
JF - Journal of the Optical Society of America A: Optics and Image Science, and Vision
IS - 5
ER -