IP Library Granted Patent US 6,990,126
Granted Patent B2
US 6,990,126 · App. 10/303,825 · Granted Jan 24, 2006

Systems and methods for producing superradiance using molecular magnets

Assignee: Xerox Corporation
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Quick Facts
Patent No.
US 6,990,126
App. No.
10/303,825
Granted
Jan 24, 2006
Kind
B2
Abstract

Superradiance is generated by generating coherent radiation in the 10 gigahertz (10 10 ) to terahertz (10 12 ) regions of the electromagnetic spectrum. The radiation is produced by pulsing a micro crystal of a molecular magnet in a cavity or between a pair of superconductor mirrors at Kelvin or milli-Kelvin temperatures. The coherence and source of the radiation result from enhanced quantum mechanical spin tunneling. Alternatively, the radiation may be obtained by moving the crystal in and out of the field of a permanent magnet.

Claims (32)

1. A method of generating superradiance using a molecular magnet contained in a cavity, comprising:

changing a magnetic field that is applied to the magnet;

collecting photons in the cavity; and

emitting superradiance,

wherein the housing comprises a pair of superconductive mirrors.

2. The method of claim 1 , wherein changing the magnetic field comprises applying a time-varying magnetic field.

3. The method of claim 2 , wherein applying the time-varying magnetic field comprises switching the magnetic field on and off.

4. The method of claim 2 , wherein applying the time-varying magnetic field comprises oscillating the magnetic field.

5. The method of claim 1 , wherein changing the magnetic field comprises moving the magnet in and out of the magnetic field.

6. The method of claim 1 , further comprising maintaining the magnet at at most Kelvin temperatures.

7. The method of claim 6 , wherein maintaining the magnet at at most Kelvin temperatures comprises maintaining the magnet at at most milli-Kelvin temperatures.

8. The method of claim 1 , wherein the cavity is provided in a housing.

9. The method of claim 8 , further comprising changing a dimension of the housing.

10. The method of claim 1 , wherein the magnet is at least one of at least a molecular magnet, a crystal magnet, a solid magnet, and a solid state crystal molecular magnet.

11. The method of claim 1 , wherein the magnet is a manganese or iron molecular magnet.

12. The method of claim 1 , wherein changing the magnetic field comprises changing a strength of the magnetic field.

13. A device for generating superradiance using molecular magnets, comprising:

a magnet located in a cavity;

a pair of superconductive mirrors positioned around the magnet;

a magnetic device generating a magnetic field; and

a control device;

wherein the control device changes a provision of the magnetic field with respect to the magnet.

14. The device of claim 13 , wherein the control device changes the provision of the magnetic field by applying a time-varying magnetic field.

15. The device of claim 13 , wherein the control device changes the provision of the magnetic field by switching the magnetic field on and off.

16. The device of claim 13 , wherein the control device changes the provision of the magnetic field by oscillating the magnetic field.

17. The device of claim 13 , wherein the control device maintains the temperature of the magnet at at most Kelvin temperatures.

18. The device of claim 17 , wherein the control device maintains the temperature of the magnet at at most milli-Kelvin temperatures.

19. The device of claim 13 , wherein the control device changes the provision of the magnetic field by moving the magnet in and out of the magnetic field.

20. The device of claim 13 , wherein the magnet is at least one of at least a crystal magnet, a solid magnet, a molecular magnet, and a solid state crystal of a molecular magnet.

21. The device of claim 13 , wherein the magnet is a manganese or iron molecular magnet.

22. The device of claim 13 , wherein the control device changes a strength of the magnetic field.

23. The device of claim 13 , wherein the control device changes a dimension of the cavity.

Assignments (3)
RELEASE OF SECURITY INTEREST Recorded Sep 7, 2022
From: JPMORGAN CHASE BANK, N.A. AS SUCCESSOR-IN-INTEREST ADMINISTRATIVE AGENT AND COLLATERAL AGENT TO JPMORGAN CHASE BANK
To: XEROX CORPORATION
Reel/Frame 066728/0193 →
SECURITY AGREEMENT Recorded Oct 31, 2003
From: XEROX CORPORATION
To: JPMORGAN CHASE BANK, AS COLLATERAL AGENT
Reel/Frame 015134/0476 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 26, 2002
From: TEJADA, JAVIER; HERNANDEZ, JOAN MANEL; AMIGO, ROGER; ZIOLO, RONALD F.
To: XEROX CORPORATION
Reel/Frame 013528/0643 →
Continuity (1)
Related Publication 20040100997A1 · May 27, 2004