Focused fields of given power with maximum longitudinal electric field component inside a substrate

Q. Y. Van Den Berg, S. F. Pereira, H. P. Urbach

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Closed formulas are presented for the electromagnetic field of given power in the lens pupil, which maximizes the longitudinal electric field when focusing through an interface at arbitrary depth along the optical axis. The optimum pupil field is found to be a continuous, monotonously increasing function of the radial pupil coordinate, which differs considerably from the commonly used annular illumination. Several cases of pupil fields and focused fields are shown for different materials, NA, and focusing depth. Also, the effect of absorbing media is considered.

Original languageEnglish
Pages (from-to)1010-1014
Number of pages5
JournalJournal of the Optical Society of America A: Optics and Image Science, and Vision
Volume33
Issue number6
DOIs
Publication statusPublished - 1 Jun 2016

Keywords

  • Optics at surfaces
  • Fourier optics and signal processing
  • Diffraction theory
  • Polarization
  • Electromagnetic optics

Fingerprint Dive into the research topics of 'Focused fields of given power with maximum longitudinal electric field component inside a substrate'. Together they form a unique fingerprint.

Cite this