Accession Number:

ADP011848

Title:

Amplitude and Phase Apodization Caused by Focusing Light Through an Evanescent Gap in SIL Recorders

Descriptive Note:

Corporate Author:

ARIZONA UNIV TUCSON OPTICAL SCIENCES CENTER

Personal Author(s):

• Jo, Joshua S.
• Milster, Tom d.
• Erwin, J. K.

Report Date:

2000-01-01

Pagination or Media Count:

8.0

Abstract:

High numerical apertureNA vector diffraction theory is used to analyze a near field optical system using a solid immersion lens SIL. 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.

Descriptors:

• *OPTICAL DATA
• *OPTICAL STORAGE
• *DISK RECORDING SYSTEMS
• OPTICAL EQUIPMENT
• LIGHT
• REFRACTIVE INDEX
• RADIANCE
• FOCUSING
• INDEXES
• REFRACTION
• HEIGHT
• NEAR FIELD
• IMMERSION
• SOLID BODIES
• LENSES
• AIR GAPS

Subject Categories:

• Computer Systems
• Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE