Abstract

A solid immersion lens attached to a conventional objective increases the effective numerical aperture (NAeff) of an optical pickup and yields an areal recording density proportional to (NAeff)2. One version of this device, with an effective (NAeff) of 1.7, should be capable of very high density storage but would probably need a sealed system. Another simple configuration enables the use of this method for optical data storage in an unsealed environment and extends the spatial cutoff frequency 1.5 times. Experiments with these devices are compared with the full vector field theory of this type of imaging system.

© 1997 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
High-numerical-aperture lens system for optical storage

S. M. Mansfield, W. R. Studenmund, G. S. Kino, and K. Osato
Opt. Lett. 18(4) 305-307 (1993)

Readout signals calculated for near-field optical pickups with land and groove recording

Kimihiro Saito, Koichiro Kishima, and Isao Ichimura
Appl. Opt. 39(23) 4153-4159 (2000)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (17)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (46)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription