Perfectly Matched Layer in Numerical Wave Propagation: Factors that Affect its Performance Export

@article{citeulike:6095176, abstract = {The perfectly matched layer (PML) boundary condition is generally employed to prevent spurious reflections from numerical boundaries in wave propagation methods. However, PML requires additional computational resources. We have examined the performance of the PML by changing the distribution of sampling points and the PML's absorption profile with a view to optimizing the PML's efficiency. We used the collocation method in our study. We found that equally spaced field sampling points give better absorption of beams under both optimal and nonoptimal conditions for low PML widths. At high PML widths, unequally spaced basis points may be equally efficient. The efficiency of various PML absorption profiles, including new ones, has been studied, and we conclude that for better numerical efficiency it is important to choose an appropriate profile.}, author = {Agrawal, Arti and Sharma, Anurag}, citeulike-article-id = {6095176}, citeulike-linkout-0 = {http://dx.doi.org/10.1364/AO.43.004225}, citeulike-linkout-1 = {http://www.opticsinfobase.org/abstract.cfm?id=80592}, day = {20}, doi = {10.1364/AO.43.004225}, journal = {Appl. Opt.}, keywords = {perfectly\_matched\_layer}, month = {July}, number = {21}, pages = {4225--4231}, posted-at = {2009-11-10 16:11:48}, priority = {2}, publisher = {OSA}, title = {Perfectly Matched Layer in Numerical Wave Propagation: Factors that Affect its Performance}, url = {http://dx.doi.org/10.1364/AO.43.004225}, volume = {43}, year = {2004} }

TY - JOUR ID - citeulike:6095176 L3 - citeulike-article-id:6095176 N2 - The perfectly matched layer (PML) boundary condition is generally employed to prevent spurious reflections from numerical boundaries in wave propagation methods. However, PML requires additional computational resources. We have examined the performance of the PML by changing the distribution of sampling points and the PML’s absorption profile with a view to optimizing the PML’s efficiency. We used the collocation method in our study. We found that equally spaced field sampling points give better absorption of beams under both optimal and nonoptimal conditions for low PML widths. At high PML widths, unequally spaced basis points may be equally efficient. The efficiency of various PML absorption profiles, including new ones, has been studied, and we conclude that for better numerical efficiency it is important to choose an appropriate profile. IS - 21 JF - Appl. Opt. EP - 4231 TI - Perfectly Matched Layer in Numerical Wave Propagation: Factors that Affect its Performance PB - OSA VL - 43 SP - 4225 KW - perfectly_matched_layer AU - Agrawal, Arti AU - Sharma, Anurag PY - 2004/07/20/ UR - http://dx.doi.org/10.1364/AO.43.004225 ER -