Optical trapping, Field enhancement and Laser cooling in photonic crystals
Optics Express, Vol. 8, Issue 3, pp. 217-222 (2001)
http://dx.doi.org/10.1364/OE.8.000217
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Abstract
We present a detailed study of the mode structure of inverse opal photonic crystal materials with an emphasis on their potential use in optical trapping and cooling. In particular, we analyze the modes corresponding to the upper and lower band edges of a high refractive index inverse opal, i.e., the so-called “air” and “dielectric” bands. In the dielectric band, we demonstrate optical intensity enhancements of two orders of magnitude which may facilitate nonlinear optical effects in the solid. In the air band, dipolar optical trapping potentials for cold atoms in the voids arise when these modes are excited by an external laser field. In addition, we discuss aspects of atom cooling through the polarization gradients provided by these modes. The results suggest that optical trapping and cooling may be achieved within a photonic crystal using a single laser source.
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[Optical Society of America ]
OCIS Codes
(020.7010) Atomic and molecular physics : Laser trapping
(140.3320) Lasers and laser optics : Laser cooling
(140.7010) Lasers and laser optics : Laser trapping
(260.2110) Physical optics : Electromagnetic optics
ToC Category:
Focus Issue: Photonic bandgap calculations
History
Original Manuscript: November 13, 2000
Published: January 29, 2001
Citation
Ovidiu Toader, Sajeev John, and Kurt Busch, "Optical trapping, Field enhancement and Laser cooling in
photonic crystals," Opt. Express 8, 217-222 (2001)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-8-3-217
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