Photonic crystal optical waveguides for on-chip Bose-Einstein condensates

Journal Article · Wed Nov 15 04:00:00 EST 2006 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.74.053619· OSTI ID:20979335

Bravo-Abad, J; Ibanescu, M; Joannopoulos, J D; Soljacic, M ^[1]

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1. Center for Materials Science and Engineering and Department of Physics, MIT, Cambridge, Massachusetts 02139 (United States)

We propose an on-chip optical waveguide for Bose-Einstein condensates based on the evanescent light fields created by surface states of a photonic crystal. It is shown that the modal properties of these surface states can be tailored to confine the condensate at distances from the chip surface significantly longer that those that can be reached by using conventional index-contrast guidance. We numerically demonstrate that by index-guiding the surface states through two parallel waveguides, the atomic cloud can be confined in a two-dimensional trap at about 1 {mu}m above the structure using a power of 0.1 mW.

• OSTI ID: 20979335
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 5 Vol. 74; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BOSE-EINSTEIN CONDENSATION
CRYSTALS
DISTANCE
ELECTROMAGNETISM
NUMERICAL ANALYSIS
OPTICS
SURFACES
TRAPS
TWO-DIMENSIONAL CALCULATIONS
WAVEGUIDES