Amplitude and phase apodization caused by focusing light through an evanescent gap in SIL recorders

Joshua Sseunhyeun Jo; Tomas D. Milster; James Kevin Erwin

doi:10.1117/12.390500

6 July 2000 Amplitude and phase apodization caused by focusing light through an evanescent gap in SIL recorders

Joshua Sseunhyeun Jo, Tomas D. Milster, James Kevin Erwin

Proceedings Volume 4081, Optical Storage and Optical Information Processing; (2000) https://doi.org/10.1117/12.390500
Event: Photonics Taiwan, 2000, Taipei, Taiwan

Abstract

High numerical aperture vector diffraction theory is used to analyze a near field optical system using a solid immersion lens. The amplitude and phase of the transmitted light through the system changes as a function of the air gap height as well as indices of refraction, incident angle, etc. We call these `amplitude apodization' and `phase apodization'. The characteristics of those are done using supergaussian form. The effects of amplitude and phase apodization on irradiance are investigated for various index of refraction and air gap height.

Citation Download Citation

Joshua Sseunhyeun Jo, Tomas D. Milster, and James Kevin Erwin "Amplitude and phase apodization caused by focusing light through an evanescent gap in SIL recorders", Proc. SPIE 4081, Optical Storage and Optical Information Processing, (6 July 2000); https://doi.org/10.1117/12.390500

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