Coherent light generators – Particular resonant cavity – Folded cavity
Reexamination Certificate
2007-10-09
2007-10-09
Harvey, Minsun Oh (Department: 2828)
Coherent light generators
Particular resonant cavity
Folded cavity
C369S013330, C372S102000, C372S049010
Reexamination Certificate
active
10937387
ABSTRACT:
A near-field light source device including a semiconductor laser comprised of laminated semiconductor layers and having a ring-type optical resonator with a plurality of wave guides connected via mirror portions, a light blocking film formed in one of the mirror portions and having a small opening not greater than a wavelength size, and a diffraction grating formed on the light blocking film. The light oscillated from the semiconductor laser is diffracted by the diffraction grating, the diffracted light is coupled to a rotation mode in the ring-type optical resonator, and near-field light is generated via the small opening.
REFERENCES:
patent: 3691477 (1972-09-01), Janney
patent: 3824487 (1974-07-01), Buczek et al.
patent: 6088378 (2000-07-01), Furukawa
patent: 6167016 (2000-12-01), Block et al.
patent: 6236033 (2001-05-01), Ebbesen et al.
patent: 6552966 (2003-04-01), Hasegawa et al.
patent: 6982844 (2006-01-01), Rettner et al.
patent: 2003/0211403 (2003-11-01), Mizutani et al.
patent: 2004/0121245 (2004-06-01), Inao et al.
patent: 2001-326420 (2001-11-01), None
Mizutani Natsuhiko
Yamada Tomohiro
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Harvey Minsun Oh
Roy Tod T. Van
LandOfFree
Near-field light source device, and optical head, optical... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Near-field light source device, and optical head, optical..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Near-field light source device, and optical head, optical... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3903001