Beyond paraxial approximation

Document #:

LIGO-T1500434-v6

Document type:

T - Technical notes

Abstract:

Reflection and transmission by an optical element with a small focal length is calculated without using paraxial approximation.

Files in Document:

• updated formula conserves energy (T1500434-v6.pdf, 1.1 MB)

Other Files:

• calculate fields without paraxial. See examples in modeLoss.m (beyondParaxialCodes.zip, 4.1 kB)
• mathematica files (beyondParaxialFormula.nb, 271.0 kB)

Topics:

• Core Optics
• Modelling

Authors:

• Hiro Yamamoto

Keywords:

less mirror small facial length

Notes and Changes:

Additional plot added to show that parabolic mirror reflects a field as is naively expected to a focal point.