Appeal No. 95-3335
Application 08/083,231
The Rejection on Appeal
Claims 1-6 and 25-26 stand finally rejected under 35 U.S.C.
§ 103 as being unpatentable over the IBM Disclosure.
The Invention
The invention is directed to light emitting semiconductor
devices and processes which use spin-polarized carriers to
produce circularly polarized light.
Claims 1 and 25 are the only independent claims. They are
reproduced below:
1. A device for producing polarized optical emission,
comprising:
a semiconducting heterostructure, further comprising at
least one doped semiconducting layer;
a contact having a net magnetic moment, in electrical
contact with a region of said semiconducting heterostructure;
a contact electrically connected to a different region of
said semiconducting heterostructure.
25. A method for producing circularly polarized optical
emission, comprising the step of applying a bias across a
semiconducting heterostructure through a magnetic contact having
a net magnetic moment, thereby injecting spin polarized carriers
into said semiconducting heterostructure for recombination to
produce circularly polarized light.
Opinion
Our opinion is based solely on the arguments raised by the
appellant in his brief. We do not address and offer no opinion
2
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