Atomic ion clock with two ion traps, and method to transfer...

Details Atomic ion clock with two ion traps, and method to transfer... Atomic ion clock with two ion traps, and method to transfer...

2008-08-29

2011-11-15

Chang, Joseph (Department: 2817)

Oscillators

Molecular or particle resonant type

C331S003000, C324S304000

Reexamination Certificate

active

08058936

ABSTRACT:
An atomic ion clock with a first ion trap and a second ion trap, where the second ion trap is of higher order than the first ion trap. In one embodiment, ions may be shuttled back and forth from one ion trap to the other by application of voltage ramps to the electrodes in the ion traps, where microwave interrogation takes place when the ions are in the second ion trap, and fluorescence is induced and measured when the ions are in the first ion trap. In one embodiment, the RF voltages applied to the second ion trap to contain the ions are at a higher frequency than that applied to the first ion trap. Other embodiments are described and claimed.

REFERENCES:
patent: 5248883 (1993-09-01), Brewer et al.
patent: 5379000 (1995-01-01), Brewer et al.
patent: 5420549 (1995-05-01), Prestage
patent: 6906324 (2005-06-01), Wang et al.
Prestage, J. et al., “Atomic clocks and variations of the fine structure constant,” Physical Review Letters, vol. 74, No. 18, May 1, 1995, pp. 3511-3514.
Prestage, J. et al., “Atomic clocks and oscillators for deep-space navigation and radio science,” Proceedings of the IEEE, vol. 95, No. 11, Nov. 2007, pp. 2235-2247.
Prestage, J. et al., “Progress on small mercury ion clock for space applications,” IEEE, 2009, pp. 54-57. Dec. 2009.
Prestage, J. et al., “New ion trap for frequency standard applications,” J. Appl. Phys. 66 (3), Aug. 1, 1989, pp. 1013-1017.
Prestage, J. et al., “Precision clocks in space and a-variations,” Nuclear Physics B (Proc. Suppl.) 134 (2004), pp. 163-170. Dec. 2004.
Prestage, J. et al., “Stability measurements between Hg+ lite 12-pole clocks,” 2002 IEEE International Frequency Control Symposium and PDA Exhibition, 2002, pp. 459-462. Dec. 2002.
Prestage, J. et al., “Recent Developments in Microwave Ion Clocks”, Topics in Applied Physics, vol. 79/2001, pp. 195-211 (2001). Dec. 2001.

Affiliated with

Also associated with

Rating

Atomic ion clock with two ion traps, and method to transfer... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Atomic ion clock with two ion traps, and method to transfer..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Atomic ion clock with two ion traps, and method to transfer... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4283002