Staff

OIST Campus
Shilong Li

Dr Shilong Li

 Staff Scientist (2020-2023)

Work at OIST

  • Structural characterization of thin-walled microbubble cavities
    MZ Jalaludeen, S Li, K Tian, T Sasaki and S Nic Chormaic
    Photonics Res. 11, A19 (2023)

  • Fluorescence engineering in metamaterial-assisted super-resolution localization microscope* ​ 
    KR Choi, S Li, I Ozerov, F Bedu, DH Park, BC Joo, JW Wu, S Nic Chormaic and YU Lee
    Nanophotonics 12, 2491 (2023) 

  • High-sensitivity vector bend sensor based on a fiber directional coupler inscribed by a femtosecond laser*
    K Tian, M Zhang, C Zhao, H Li, S Li, Y Jiang, E Lewis, G Farrell and P Wang
    Opt. Lett. 48, 1498 (2023)

  • Experimental observation of Berry phases in optical Möbius-strip microcavities* ​ 
    J Wang, S Valligatla, Y Yin, L Schwarz, M Medina-Sánchez, S Baunack, C H Lee, R Thomale, S Li, VM Fomin, L Ma and OG Schmidt
    Nat. Photon. 17, 120 (2023)

Jameesh Keloth

Jameesh Keloth

 Postdoctoral Scholar (2019-2023)

Work at OIST

  • Manipulation of polarization topology using a Fabry-Perot fiber cavity with a higher-order mode optical nanofiber
    M Maeda, J Keloth and S Nic Chormaic
    Photonics Res. 11, 1029 (2023)

Jesse Everett

Dr Jesse Everett

 Postdoctoral Scholar (2018-2022)

Work at OIST

  • 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)

  • 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)

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

Georgiy Tkachenko

Dr Georgiy Tkachenko

 Staff Scientist (2021-2022),  JSPS Fellow (2018-2020),  Postdoctoral Scholar (2017-2018)

Work at OIST

  • Enhanced directional coupling of light with a whispering gallery microcavity 
    F Lei, G Tkachenko, X Jiang, JM Ward, L Yang and S Nic Chormaic
    ACS Photonics 7, 361 (2020)

  • Light-induced rotation of dielectric microparticles around an optical nanofiber 
    G Tkachenko, I Toftul, C Esporlas, A Maimaiti, F Le Kien, VG Truong and S Nic Chormaic
    Optica 7, 59 (2020)

  • 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) 

  • Polarisation control for optical nanofibres by imaging through a single lens (Editors' Suggestion)
    G Tkachenko, F Lei and S Nic Chormaic
    J. Opt. 21, 125604 (2019)

  • Complete polarization control for a nanofiber waveguide using directional coupling
    F Lei, G Tkachenko, JM Ward and S Nic Chormaic
    Phys. Rev. Appl. 11, 064041 (2019)

  • Ultrathin optical fibers: Guided modes, angular momentum, and applications (invited review)
    C Esporlas, G Tkachenko, VG Truong and S Nic Chormaic
    Rev. Las. Engin. 46 196 (2018)

          and more.

Patents

  • Parabolic reflector based scheme for variable angle ellipsometry
    G Tkachenko, VG Truong and S Nic Chormaic
    USA Provisional Patent Filed (2019)
Ke Tian

Dr Ke Tian

 Postdoctoral Scholar (2020-2022)

Work at OIST

  • Blue band nonlinear optics and photodarkening in silica microdevices
    K Tian, J Yu, F Lei, JM Ward, A Li, P Wang and S Nic Chormaic 
    Photonics Res. 10, 2073 (2022).

  • Packaged whispering gallery resonator device based on an optical nanoantenna coupler
    A Li, K Tian, J Yu, RA Minz, JM Ward, S Mondal, P Wang and S Nic Chormaic 
    Opt. Express 29, 16879 (2021)

Domna Kotsifaki

Dr Domna Kotsifaki

 Staff Scientist (2018-2021)

Work at OIST

Vandna Gokhroo

Dr Vandna Gokhroo

 Staff Scientist (2019-2021)

Work at OIST

  • 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) 

  • Rubidium atom spectral lineshapes in high intensity electric fields near an optical nanofibre
    V Gokhroo, F Le Kien and S Nic Chormaic
    J. Phys. B: At. Mol. Opt. Phys. 55, 125301 (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) 

Priscila Romagnoli

Dr Priscila Romagnoli

 Postdoctoral Scholar (2018-2020)

Work at OIST

Jonathan Ward

Dr Jonathan Ward

 Staff Scientist (2012-2020)

Work at OIST

  • Fabrication of optical nanofibre-based cavities using focussed ion-beam millling - A review 
    P Romagnoli, M Maeda, JM Ward, VG Truong and S Nic Chormaic
    Appl. Phys. B  126, 111 (2020)

  • Polarization-controlled cavity input-output relations
    F Lei, JM Ward, P Romagnoli and S Nic Chormaic
    Phys. Rev. Lett. 124, 103902 (2020)

  • Enhanced directional coupling of light with a whispering gallery microcavity 
    F Lei, G Tkachenko, X Jiang, JM Ward, L Yang and S Nic Chormaic
    ACS Photonics 7, 361 (2020)

  • Toward real-time monitoring and control of nanoparticle properties with a microbubble resonator spectrometer*
    LT Hogan, EH Horak, JM Ward, KA  Knapper, S Nic Chormaic, and RH Goldsmith
    ACS Nano 13, 12743 (2019)

  • 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)

  • Excitation of whispering-gallery-modes with a "point-and-play" fiber-based, optical nano-antenna 
    JM Ward, F Lei, S Vincent, P Gupta, SK Mondal, J Fick and S Nic Chormaic
    Opt. Lett. 44, 3386 (2019)

  • Complete polarization control for a nanofiber waveguide using directional coupling
    F Lei, G Tkachenko, JM Ward and S Nic Chormaic
    Phys. Rev. Appl. 11, 064041 (2019)

    and more.

Patents

Jean-Baptiste Ceppe

Dr Jean-Baptiste Ceppe

 Postdoctoral Scholar (2019-2020)

Work outside OIST

  • Dynamical analysis of modal coupling in rare-earth whispering-gallery-mode microlasers*
    J-B Ceppe, P Féron, M Mortier and Y Dumeige
    Phys. Rev. Appl. 11, 064028 (2019)

     

Fuchuan Lei

Dr Fuchuan Lei

 Postdoctoral Scholar (2016-2019)

Work at OIST

  • Polarization-controlled cavity input-output relations
    F Lei, JM Ward, P Romagnoli and S Nic Chormaic
    Phys. Rev. Lett. 124, 103902 (2020)

  • Enhanced directional coupling of light with a whispering gallery microcavity 
    F Lei, G Tkachenko, X Jiang, JM Ward, L Yang and S Nic Chormaic
    ACS Photonics 7, 361 (2020)

  • Polarisation control for optical nanofibres by imaging through a single lens (Editors' Suggestion)
    G Tkachenko, F Lei and S Nic Chormaic
    J. Opt. 21, 125604 (2019)

  • 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)

  • Excitation of whispering-gallery-modes with a "point-and-play" fiber-based, optical nano-antenna 
    JM Ward, F Lei, S Vincent, P Gupta, SK Mondal, J Fick and S Nic Chormaic
    Opt. Lett. 44, 3386 (2019)

  • Complete polarization control for a nanofiber waveguide using directional coupling
    F Lei, G Tkachenko, JM Ward and S Nic Chormaic
    Phys. Rev. Appl. 11, 064041 (2019)

    and more.

Patents

Tridib Ray

Dr Tridib Ray

 Postdoctoral Scholar (2015-2019)

Work at OIST

  • 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) 

  • Generation of cold Rydberg atoms at submicron distances from an optical nanofiber (Rapid Communication)
    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)

  • 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)

Xue Han

Dr Xue Han

 Postdoctoral Scholar (2015-2018)

Work at OIST

Wenfang Li

Dr Wenfang Li

 Postdoctoral Scholar (2016-2018)

Work at OIST

  • Tailoring a nanofiber for enhanced photon emission and coupling efficiency from single quantum emitters
    W Li, J Du and S Nic Chormaic
    Opt. Lett. 43, 1674 (2018)

  • Optical nanofiber-based cavity induced by periodic air-nanohole arrays
    W Li, J Du, VG Truong and S Nic Chormaic
    Appl. Phys. Lett. 110, 253102 (2017)

Jinjin Du

Dr Jinjin Du

 Postdoctoral Scholar (2015-2018)

Work at OIST

  • Tailoring a nanofiber for enhanced photon emission and coupling efficiency from single quantum emitters
    W Li, J Du and S Nic Chormaic
    Opt. Lett. 43, 1674 (2018)

  • Optical nanofiber-based cavity induced by periodic air-nanohole arrays
    W Li, J Du, VG Truong and S Nic Chormaic
    Appl. Phys. Lett. 110, 253102 (2017)

Yong Yang

Dr Yong Yang

 Postdoctoral Scholar (2011-2017)

Work at OIST

  • Nanoparticle sensing beyond evanescent field interaction with a quasi-droplet microcavity
    JM Ward, Y Yang, F Lei, X-C Yu, Y-F Xiao and S Nic Chormaic
    Optica 5, 674 (2018)
  • 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)

  • 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
    in book: Exploring the World with the Laser, pp. 629-646, Springer International Publishing, Meschede, Dieter, Udem, Thomas, Esslinger, Tilman (Eds.) (2018)

    and more.

Patents

Aysen Gurkan

Dr Aysen Gurkan

 Research Technician (2016-2017)

Vikraman Karunanidhi

Mr Vikraman Karunanidhi

 Research Technician (2015-2016)

Marios Sergides

Dr Marios Sergides

 JSPS Fellow (2013-2014) , Postdoctoral Scholar (2014-2015)

Work at OIST

Ivan Gusachenko

Dr Ivan Gusachenko

 Postdoctoral Scholar (2012-2015)

Work at OIST

  • Higher order microfibre modes for dielectric particle trapping and propulsion
    A Maimaiti, VG Truong, M Sergides, I Gusachenko and S Nic Chormaic
    Scientific Reports 5, 9077 (2015)

  • Selective particle trapping and optical binding in the evanescent field of an optical nanofiber
    MC Frawley, I Gusachenko, VG Truong, M Sergides and S Nic Chormaic
    Opt. Exp. 22, 16322 (2014)

Vandna Gokhroo

Dr Vandna Gokhroo

 Postdoctoral Scholar (2012-2015)

Work at OIST

  • Temperature measurement of cold atoms using transient absorption of a resonant probe through an optical nanofibre
    R Kumar, V Gokhroo, VB Tiwari and S Nic Chormaic
    J. Opt. 18, 115401 (2016)  

  • Optical nanofibres and neutral atoms (invited topical review)  Selected as "Paper of the Week".
    Acknowledged by IOP as a top-cited review article of 2016
    T Nieddu, V Gokhroo and S Nic Chormaic
    J. Opt. 18, 053001 (2016)

  • Multi-level, cascaded electromagnetically induced transparency in cold atoms using an optical nanofibre interface
    R Kumar, V Gokhroo and S Nic Chormaic
    New J. Phys. 17, 123012 (2015)

  • Autler-Townes splitting via frequency up-conversion at ultralow-power levels in cold 87Rb atoms using an optical nanofiber
    R Kumar, V Gokhroo, K Deasy and S Nic Chormaic
    Phys. Rev. A 91, 053842 (2015)

  • Interaction of laser-cooled 87Rb atoms with higher order modes of an optical nanofibre
    R Kumar, V Gokhroo, K Deasy, A Maimaiti, MC Frawley, C Phelan and S Nic Chormaic
    New J. Phys. 17, 013026 (2015)

Vu Hong Le

Mr Vu Hong Le

Technician (2012-2015)

Bishwajeet Singh Bhardwaj

Mr Bishwajeet Singh Bhardwaj

 Research Assistant (2014-2015)

Kieran Deasy

Dr Kieran Deasy

 Postdoctoral Scholar (2012-2015)

Work at OIST

  • Autler-Townes splitting via frequency up-conversion at ultralow-power levels in cold 87Rb atoms using an optical nanofiber
    R Kumar, V Gokhroo, K Deasy and S Nic Chormaic
    Phys. Rev. A 91, 053842 (2015)

  • Interaction of laser-cooled 87Rb atoms with higher order modes of an optical nanofibre
    R Kumar, V Gokhroo, K Deasy, A Maimaiti, MC Frawley, C Phelan and S Nic Chormaic
    New J. Phys. 17, 013026 (2015)

  • Nanostructured optical nanofibre for atom trapping
    M Daly, VG Truong, CF Phelan, K Deasy and S Nic Chormaic
    New J. Phys. 16, 053052 (2014)

Ciarán Phelan

Dr Ciarán Phelan

Postdoctoral Scholar (2012-2014)

Work at OIST

  • Interaction of laser-cooled 87Rb atoms with higher order modes of an optical nanofibre
    R Kumar, V Gokhroo, K Deasy, A Maimaiti, MC Frawley, C Phelan and S Nic Chormaic
    New J. Phys. 17, 013026 (2015)

  • Nanostructured optical nanofibre for atom trapping
    M Daly, VG Truong, CF Phelan, K Deasy and S Nic Chormaic
    New J. Phys. 16, 053052 (2014)

Alan Curtis

Mr Alan Curtis

Technician (2012-2013)