Roles of propagating and evanescent waves in solid immersion lens systems

Tom D. Milster, Joshua S. Jo, Kusato Hirota

Research output: Contribution to journalArticlepeer-review

67 Scopus citations


The electromagnetic field incident on the thin-film layers in a solid immersion lens (SIL) system is decomposed into contributions from homogeneous and inhomogeneous waves, which are commonly referred to as propagating and evanescent waves, respectively. The homogeneous and the inhomogeneous parts have different properties with respect to the field distribution in the gap and inside the recording layers. The homogeneous part is shown to diffract like a focused wave with a numerical aperture of 1, and the inhomogeneous part decays exponentially away from the bottom of the SIL. Two examples are discussed in detail, and the concept of a vector illumination system transfer function, which includes effects of the recording layers, is introduced.

Original languageEnglish (US)
Pages (from-to)5046-5057
Number of pages12
JournalApplied optics
Issue number23
StatePublished - Aug 10 1999

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering


Dive into the research topics of 'Roles of propagating and evanescent waves in solid immersion lens systems'. Together they form a unique fingerprint.

Cite this