119 citations · 550 across the 12 of their papers we have counts for
12 papers
Rubidium atom spectral lineshapes in high intensity electric fields near an optical nanofibre
Vandna Gokhroo, Fam Le Kien, Síle Nic Chormaic
The integration of cold atomic systems with optical nanofibres is an increasingly important experimental platform. Here, we report on the spectra observed during a strongly driven,…
Machine learner optimization of optical nanofiber-based dipole traps for cold Rb atoms
Ratnesh K. Gupta, Jesse L. Everett, Aaron D. Tranter +4
In two-color optical nanofiber-based dipole traps for cold alkali atoms, the trap efficiency depends on the wavelength and intensity of light in the evanescent field, and the initi…
Spin selection rule for {\it S} level transitions in atomic rubidium under paraxial and nonparaxial two-photon excitation
Krishnapriya Subramonian Rajasree, Ratnesh Kumar Gupta, Vandna Gokhroo +5
We report on an experimental test of the spin selection rule for two-photon transitions in atoms. In particular, we demonstrate that the transition rate in a…
Observation of the Rb to electric quadrupole transition at 516.6 nm mediated via an optical nanofibre
Tridib Ray, Ratnesh K. Gupta, Vandna Gokhroo +4
Light guided by an optical nanofibre can have a very steep evanescent field gradient extending from the fibre surface. This can be exploited to drive electric quadrupole transition…
Experimental realization of a superfluid stripe phase in a spin-orbit-coupled Bose-Einstein condensate enabled by momentum-space hopping
Thomas M. Bersano, Junpeng Hou, Sean Mossman +5
In the past few decades, the search for supersolid-like phases has attracted great attention in condensed matter and ultracold atom communities. Here we experimentally demonstrate…
Momentum-Space Josephson Effects
Junpeng Hou, Xi-Wang Luo, Kuei Sun +5
The Josephson effect is a prominent phenomenon of quantum supercurrents that has been widely studied in superconductors and superfluids. Typical Josephson junctions consist of two…
Three-component soliton states in spinor Bose-Einstein condensates
T. M. Bersano, V. Gokhroo, M. A. Khamehchi +4
Dilute-gas Bose-Einstein condensates are an exceptionally versatile testbed for the investigation of novel solitonic structures. While matter-wave solitons in one- and two-componen…
Vector Dark-Antidark Solitary Waves in Multi-Component Bose-Einstein condensates
I. Danaila, M. A. Khamehchi, V. Gokhroo +2
Multi-component Bose-Einstein condensates exhibit an intriguing variety of nonlinear structures. In recent theoretical work, the notion of magnetic solitons has been introduced. He…
Optical nanofibres and neutral atoms
Thomas Nieddu, Vandna Gokhroo, Sile Nic Chormaic
Optical nanofibres are increasingly being used in cold atom experiments due to their versatility and the clear advantages they have when developing all-fibred systems for quantum t…
Multi-level cascaded electromagnetically induced transparency in cold atoms using an optical nanofibre interface
Ravi Kumar, Vandna Gokhroo, Síle Nic Chormaic
Ultrathin optical fibres integrated into cold atom setups are proving to be ideal building blocks for atom-photon hybrid quantum networks. Such optical nanofibres (ONF) can be used…
Autler-Townes splitting via frequency upconversion at ultra-low power levels in cold Rb atoms using an optical nanofiber
Ravi Kumar, Vandna Gokhroo, Kieran Deasy +1
The tight confinement of the evanescent light field around the waist of an optical nanofiber makes it a suitable tool for studying nonlinear optics in atomic media. Here, we use an…
Interaction of laser-cooled Rb atoms with higher order modes of an optical nanofiber
Ravi Kumar, Vandna Gokhroo, Aili Maimaiti +4
Optical nanofibres are used to confine light to subwavelength regions and are very promising tools for the development of optical fibre-based quantum networks using cold, neutral a…