Multi-wavelength holography with a single spatial light modulator for ultracold atom experiments

Bowman, D. R.; Ireland, P. J.; Bruce, Graham D.; Cassettari, Donatella

doi:10.1364/oe.23.008365

Cited by 19 publications

(16 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This approach to hologram calculation is compatible with existing methods for the generation of multi-wavelength holographic optical traps [24]. In this work we have concentrated on using a fast Fourier transform as the propagator P. However, we find that near-field patterns calculated using Angular Spectrum Wavefront Propagation [10] achieve comparable fidelity, efficiency and smoothness.…”

Section: Discussionmentioning

confidence: 99%

High-fidelity phase and amplitude control of phase-only computer generated holograms using conjugate gradient minimisation

et al. 2017

View full text Add to dashboard Cite

We demonstrate simultaneous control of both the phase and amplitude of light using a conjugate gradient minimisation-based hologram calculation technique and a single phase-only spatial light modulator (SLM). A cost function, which incorporates the inner product of the light field with a chosen target field within a defined measure region, is efficiently minimised to create high fidelity patterns in the Fourier plane of the SLM. A fidelity of F = 0.999997 is achieved for a pattern resembling an LG10 mode with a calculated light-usage efficiency of 41.5%. Possible applications of our method in optical trapping and ultracold atoms are presented and we show uncorrected experimental realisation of our patterns with F = 0.97 and 7.8% light efficiency.

show abstract

Section: Discussionmentioning

confidence: 99%

High-fidelity phase and amplitude control of phase-only computer generated holograms using conjugate gradient minimisation

et al. 2017

View full text Add to dashboard Cite

show abstract

“…In order to provide an almost flat potential with hard walls, the red-detuned optical lattice could be illuminated by a repulsive blue-detuned potential of comparable trap frequency to the lattice beams and an additional bluedetuned Laguerre-Gauss beam. Using holographic methods these blue-detuned potentials and the disorder could all be generated using a single spatial light modulator [73]. In such a trap with weakly-varying µ, large samples of a single phase can be measured, allowing quantum gas microscopes to probe longer wavelength properties of the BG at a site-resolved level.…”

Section: Outlook and Conclusionmentioning

confidence: 99%

Measuring the Edwards-Anderson order parameter of the Bose glass: A quantum gas microscope approach

et al. 2016

View full text Add to dashboard Cite

With the advent of spatially resolved fluorescence imaging in quantum gas microscopes, it is now possible to directly image glassy phases and probe the local effects of disorder in a highly controllable setup. Here we present numerical calculations using a spatially-resolved local mean-field theory, show that it captures the essential physics of the disordered system and use it to simulate the density distributions seen in single-shot fluorescence microscopy. From these simulated images we extract local properties of the phases which are measurable by a quantum gas microscope and show that unambiguous detection of the Bose glass is possible. In particular, we show that experimental determination of the Edwards-Anderson order parameter is possible in a strongly correlated quantum system using existing experiments. We also suggest modifications to the experiments which will allow further properties of the Bose glass to be measured.

show abstract

“…traps should be straightforward, however such patterns rely more heavily on destructive interference which is likely to impinge on the smoothness of the final patterns. Additionally, FZPs should lend themselves to future extension work involving multi-wavelength hologram production following a similar approach to that shown in [44]. The dataset for this paper will be available here [45].…”

Section: Outlook and Conclusionmentioning

confidence: 99%

Comparative simulations of Fresnel holography methods for atomic waveguides

et al. 2016

View full text Add to dashboard Cite

We have simulated the optical properties of micro-fabricated Fresnel zone plates (FZPs) as an alternative to spatial light modulators for producing non-trivial light potentials to trap atoms within a lensless Fresnel arrangement. We show that binary (1 bit) FZPs with wavelength (1 μm) spatial resolution consistently outperform kinoforms of spatial and phase resolution comparable to commercial SLMs in root mean square error comparisons, with FZP kinoforms demonstrating increasing improvement for complex target intensity distributions. Moreover, as sub-wavelength resolution microfabrication is possible, FZPs provide an exciting possibility for the creation of static cold-atom trapping potentials useful to atomtronics, interferometry, and the study of fundamental physics.

show abstract

Multi-wavelength holography with a single spatial light modulator for ultracold atom experiments

Cited by 19 publications

References 30 publications

High-fidelity phase and amplitude control of phase-only computer generated holograms using conjugate gradient minimisation

High-fidelity phase and amplitude control of phase-only computer generated holograms using conjugate gradient minimisation

Measuring the Edwards-Anderson order parameter of the Bose glass: A quantum gas microscope approach

Comparative simulations of Fresnel holography methods for atomic waveguides

Contact Info

Product

Resources

About