Evanescent atom guiding in metal-coated hollow-core optical fibe

Details Evanescent atom guiding in metal-coated hollow-core optical fibe Evanescent atom guiding in metal-coated hollow-core optical fibe

1998-11-01

2000-11-21

Spyrou, Cassandra

Optical waveguides

Optical fiber waveguide with cladding

Utilizing nonsolid core or cladding

385123, 20419238, 250251, G02B 602

Patent

active

061514357

ABSTRACT:
A new type of atom guiding structure has been analyzed. It consists of a low-core optical fiber (step-index) which is not clad, but instead has a metal coating on its outer lateral surface. It will be shown that this structure produces the maximum evanescent field in the hollow region of the fiber and guiding can be accomplished with lower power lasers. Both the dipole and the vander Waals potentials have been combined and the resulting barrier height was maximized as a function of both .DELTA., the detuning, and r, the position. An optimized potential having a barrier height of 1 K has been determined by iteratively solving for the required laser intensity. The probability of atoms tunneling through this barrier to the inner wall has been calculated and is expected to be unimportant. Centripetal effects due to a bending of the fiber have also been estimated and are small for the barrier considered here. Compared to other structures, this new-type of guide provides bigger barriers for the same laser power, and therefore enhanced atom guiding.

REFERENCES:
patent: 5528028 (1996-06-01), Chu et al.

Affiliated with

Also associated with

Rating

Evanescent atom guiding in metal-coated hollow-core optical fibe does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Evanescent atom guiding in metal-coated hollow-core optical fibe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evanescent atom guiding in metal-coated hollow-core optical fibe will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1265485