Focusing of an electromagnetic plane wave into a uniaxial crystal by a Wood lens

• Authors: Abdul Ghaffar , Qaisar Naqvi
• Languages of publication: EN

Abstracts

EN

High frequency fields, refracted by a geometry containing a Wood lens placed at a certain distance from a planar uniaxial interface, are derived by using Maslov’s method. The geometrical optics approximation generally valid for high frequency fields fails in the vicinity of a caustic. Maslov’s method is a systematic procedure for predicting the field in the caustic region, combining the simplicity of the ray and the generality of the transform method. Numerical computations are made for the field pattern around the caustic by using Maslov’s method. The results are found to be in good agreement with those obtained using Kirchhoff’s approximation.

Keywords

EN

Maslov’s method; high frequency; geometrical optics; Wood lens; Hamilton’s solutions

Discipline

• 42.15.Eq: Optical system design
• 42.30.Kq: Fourier optics

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2009
• Volume: 7
• Issue: 1
• Pages: 41-49

Dates

published

1 - 3 - 2009

online

8 - 1 - 2009

Contributors

author

Abdul Ghaffar

• Department of Electronics, Quaid-i-Azam University, Islamabad, Pakistan

author

Qaisar Naqvi

• Department of Electronics, Quaid-i-Azam University, Islamabad, Pakistan

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Identifiers

DOI

10.2478/s11534-008-0134-x