Graduates


Theodoros D. Bouloumis                                  Graduated PhD 2023

Metamaterial Plasmonic Tweezers for Enhanced Nanoparticle Trapping

Publications

Ratnesh Kumar Gupta                                     Graduated PhD 2022

Evanescent field mediated interactions of cold rubidium atoms with optical nanofiber guided light

Publications
  • Cold atoms in space: Community workshop summary and proposed road-map
    I Alonso et al. [RK Gupta]
    EPJ Quantum Technol. 9, 30 (2022)

  • Machine leaner optimization of optical nanofiber-based dipole traps for cold 87Rb atoms
    RK Gupta, JL Everett, AD Tranter, R Henke, V Gokhroo, PK Lam and S Nic Chormaic
    AVS Quantum Sci. 4, 026801 (2022).

  • Spin selection in single-frequency two-photon excitation of alkali-metal atoms
    KS Rajasree, RK Gupta, V Gokhroo, F Le Kien, T Nieddu, T Ray, S Nic Chormaic and G Tkachenko
    Phys. Rev. Res. 2, 033341 (2020)

  • Observation of the 87Rb 5S1/2 to 4D3/2 electric quadrupole transition at 516.6 nm mediated via an optical nanofibre
    T Ray, RK Gupta, V Gokhroo, JL Everett, T Nieddu, KS Rajasree and S Nic Chormaic
    New J. Phys. 22, 062001 (2020)

Christina Ripken                                              Graduated PhD 2020

Micro- and nanoplastic in Okinawa: Potential impacts on planktonic microalgae and endosymbiotic dinoflagellates

Publications
  • Analysis of small microplastics in coastal surface water samples of the subtropical island of Okinawa, Japan
    C Ripken, S Nic Chormaic and DG Kotsifaki
    Sci. Total Environ. 760, 143927 (2021) 

  • Response of coral reef dinoflagellates to nanoplastics under experimental conditions
    C Ripken, E Shoguchi and K Khalturin
    Microorganisms 8, 1759 (2020)

Krishnapriya Subramonian Rajasree             Graduated PhD 2020

Rydberg excitation and other multiphoton processes in cold rubidium atoms near an optical nanofibre

Publications
  • 1.6 GHz frequency scanning of a 482 nm laser stabilized using electromagnetically induced transparency 
    KP Subramonian Rajasree, K Karlsson, T Ray and S Nic Chormaic 
    Photon. Technol. Lett. 33, 780 (2021)

  • Spin selection in single-frequency two photon excitation of alkali-metal atoms
    KS Rajasree, RK Gupta, V Gokhroo, F Le Kien, T Nieddu, T Ray, S Nic Chormaic and G Tkachenko
    Phys. Rev. Res. 2, 033341 (2020)

  • Observation of the 87Rb 5S1/2 to 4D3/2 electric quadrupole transition at 516.6 nm mediated via an optical nanofiber
    T Ray, RK Gupta, V Gokhroo, JL Everett, T Nieddu, KS Rajasree and S Nic Chormaic
    New J. Phys. 22, 062001 (2020)

  • Generation of cold Rydberg atoms at submicron distances from an optical nanofiber
    KS Rajasree, T Ray, K Karlsson, JL Everett and S Nic Chormaic
    Phys. Rev. Res. 2. 012038(R) (2020).

  • Simple, narrow, and robust atomic frequency reference at 993 nm exploiting the rubidium (Rb) 5S1/2 to 6S1/2 transition using one-color two-photon excitation
    T Nieddu, T Ray, KS Rajasree, R Roy and S Nic Chormaic
    Opt. Express 27, 6528 (2019)

Simon Peter Mekhail                                        Graduated PhD 2019

Optical fiber probes for in-vivo neuronal compressive microendscopy and mode analysis in nanofibers

Publications
Patents
  • Z-axis optical microdrive
    SP Mekhail, B Sieveritz, P Kennedy, GW Arbuthnott and S Nic Chormaic
    USA Provisional Patent Filed 63/003,769 (2020)

Sho Kasumie                                                      Graduated PhD 2019

Hollow whispering gallery mode resonators: from fabrication to application

Publications
  • Raman laser switching induced by cascaded light scattering
    S Kasumie, F Lei, JM Ward, X Jiang, L Yang and S Nic Chormaic
    Laser Photonics Rev. 13, 1900138 (2019)

  • Toward visible frequency comb generation using a hollow WGM resonator (invited review)
    S Kasumie, Y Yang, JM Ward and S Nic Chormaic
    Rev. Las. Engin. 46, 92 (2018)

  • Tunable erbium-doped microbubble laser fabricated by sol-gel coating
    Y Yang, F Lei, S Kasumie, L Xu, J Ward, L Yang and S Nic Chormaic
    Opt. Express 25, 1308 (2017)

  • Cavity ring-up spectroscopy for dissipative and dispersive sensing in a whispering gallery mode resonator
    Y Yang, R Madugani, S Kasumie, JM Ward and S Nic Chormaic
    Appl. Phys. B 122, 291 (2016)

  • Four-wave mixing parametric oscillation and frequency comb generation at visible wavelengths in a silica microbubble resonator
    Y Yang, X Jiang, S Kasumie, G Zhao, L Xu, J Ward, L Yang and S Nic Chormaic
    Opt. Lett. 41, 5266 (2016)

Thomas Nieddu                                                 Graduated PhD 2019

Optical nanofibers for multiphoton processes and selective mode interactions with rubidium 

Publications
  • Spin selection in single frequency, two photon excitation of alkali atoms
    KS Rajasree, RK Gupta, V Gokhroo, F Le Kien, T Nieddu, T Ray, S Nic Chormaic and G Tkachenko  
    Phys. Rev. Res. 2, 033341 (2020)

  • Observation of the 87Rb 5S1/2 to 4D3/2 electric quadrupole transition at 516.6 nm mediated via an optical nanofibre
    T Ray, RK Gupta, V Gokhroo, JL Everett, T Nieddu, KS Rajasree and S Nic Chormaic
    New J. Phys. 22, 062001 (2020)

  • Enhancement of the quadrupole interaction of an atom with guided light of an ultrathin optical fiber
    F Le Kien, T Ray, T Nieddu, T Busch and S Nic Chormaic
    Phys. Rev. A 97, 013821 (2018)

  • Simple, narrow, and robust atomic frequency reference at 993 nm exploiting the rubidium (Rb) 5S1/2 to 6S1/2 transition using one-color two-photon excitation
    T Nieddu, T Ray, KS Rajasree, R Roy and S Nic Chormaic
    Opt. Express 27, 6528 (2019)

  • Optical nanofibres and neutral atoms 
    T Nieddu, V Gokhroo and S Nic Chormaic
    J. Opt. 18, 053001 (2016)

Mark Daly                                                        Graduated PhD 2017

Light-induced interactions using optical near-field devices

Publications