Source of spin polarized electrons
Patent 3968376 Issued on July 6, 1976. Estimated Expiration Date: 
July 6, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
July 6, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References3672992 InventorsApplicationNo. 581837 filed on 06/03/1975US Classes:250/493.1, RADIANT ENERGY GENERATION AND SOURCES250/423R, ION GENERATION313/542PhotocathodeExaminersPrimary: Smith, Alfred E.Assistant: Grigsby, T. N. Foreign Application Priority Data1975-01-13 CHAbstractThe invention concerns a method of producing intense beams of polarized free electrons in which a semiconductor with a spin orbit split valence band and negative electron affinity is used as a photocathode and irradiated with circularly polarized light. | |
