Publications (9)
Optical dipole traps and atomic waveguides based on Bessel light beams
J. Arlt, K. Dholakia, J. Soneson +1
We theoretically investigate the use of Bessel light beams generated using axicons for creating optical dipole traps for cold atoms and atomic waveguiding. Zeroth-order Bessel beam…
Experimental observation of optical vortex evolution in a Gaussian beam with an embedded fractional phase step
W. M. Lee, X. -C. Yuan, K. Dholakia
We detect the vortex evolution from the increase of the fractional phase step by interfering two beams of opposite but equal fractional step increment.The interference pattern gene…
Experimental Observation of Modulation Instability and Optical Spatial Soliton Arrays in Soft Condensed Matter
P. J. Reece, E. M. Wright, K. Dholakia
In this Letter we report observations of optically induced self-organization of colloidal arrays in the presence of un-patterned counter-propagating evanescent waves. The colloidal…
Optically bound microscopic particles in one dimension
D. McGloin, A. E. Carruthers, K. Dholakia +1
Counter-propagating light fields have the ability to create self-organized one-dimensional optically bound arrays of microscopic particles, where the light fields adapt to the part…
Optical Eigenmodes; Exploiting the quadratic nature of the energy flux and of scattering interactions
M. Mazilu, J. Baumgartl, S. Kosmeier +1
We report a mathematically rigorous technique which facilitates the optimization of various optical properties of electromagnetic fields in free space and including scattering inte…
Volumetric nanoscale localization using engineered point spread functions in light sheet microscopy
R. E. Bautista Gonzalez, R. Mouthaan, A. Upadhya +3
Nanoscale three-dimensional localization across large biological volumes remains an outstanding challenge in optical microscopy, with existing approaches typically limited by imagi…
Atomic-phase interference devices based on ring-shaped Bose-Einstein condensates: Two ring case
B. P. Anderson, K. Dholakia, E. M. Wright
We theoretically investigate the ground-state properties and quantum dynamics of a pair of adjacent ring-shaped Bose-Einstein condensates that are coupled via tunneling. This devic…
Toroidal optical dipole traps for atomic Bose-Einstein condensates using Laguerre-Gaussian beams
E. M. Wright, J. Arlt, K. Dholakia
We theoretically investigate the use of red-detuned Laguerre-Gaussian (LG) laser beams of varying azimuthal mode index for producing toroidal optical dipole traps in two-dimensiona…
Laser Writing of Parabolic Micromirrors with a High Numerical Aperture for Optical Trapping and Rotation
T. Plaskocinski, Y. Arita, G. D. Bruce +4
On-chip optical trapping systems allow for high scalability and lower the barrier to access. Systems capable of trapping multiple particles typically come with high cost and comple…