Ranjan Singh

Summary

Affiliation: Los Alamos National Laboratory
Country: USA

Publications

  1. doi request reprint Highly tunable optical activity in planar achiral terahertz metamaterials
    Ranjan Singh
    School of Electrical and Computer Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, USA
    Opt Express 18:13425-30. 2010
  2. doi request reprint Sharp Fano resonances in THz metamaterials
    Ranjan Singh
    School of Electrical and Computer Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, USA
    Opt Express 19:6312-9. 2011
  3. doi request reprint Thermal tunability in terahertz metamaterials fabricated on strontium titanate single-crystal substrates
    Ranjan Singh
    Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
    Opt Lett 36:1230-2. 2011
  4. doi request reprint A close-ring pair terahertz metamaterial resonating at normal incidence
    Jianqiang Gu
    School of Electrical and Computer Engineering, Oklahoma State University, Oklahoma 74078, USA
    Opt Express 17:20307-12. 2009
  5. doi request reprint A broadband planar terahertz metamaterial with nested structure
    Dibakar Roy Chowdhury
    MPA CINT, Los Alamos National Laboratory, P O Box 1663, MS K771, Los Alamos, NM 87545, USA
    Opt Express 19:15817-23. 2011
  6. ncbi request reprint Tuning the resonance in high-temperature superconducting terahertz metamaterials
    Hou Tong Chen
    MPA CINT, MS K771, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
    Phys Rev Lett 105:247402. 2010
  7. doi request reprint Low-loss ultra-high-Q dark mode plasmonic Fano metamaterials
    Wei Cao
    School of Electrical and Computer Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, USA
    Opt Lett 37:3366-8. 2012
  8. ncbi request reprint Thin-film sensing with planar terahertz metamaterials: sensitivity and limitations
    John F O'Hara
    MPA CINT, Los Alamos National Laboratory, P O Box 1663, MS K771, Los Alamos, NewMexico 87545, USA
    Opt Express 16:1786-95. 2008
  9. ncbi request reprint Optically thin terahertz metamaterials
    Ranjan Singh
    School of Electrical and Computer Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, USA
    Opt Express 16:6537-43. 2008
  10. pmc Tailoring terahertz plasmons with silver nanorod arrays
    Wei Cao
    School of Electrical and Computer Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, USA
    Sci Rep 3:1766. 2013

Collaborators

  • Hou Tong Chen
  • Q X Jia
  • Jiaguang Han
  • Carsten Rockstuhl
  • Weili Zhang
  • John F O'Hara
  • Wei Cao
  • Dibakar Roy Chowdhury
  • Antoinette J Taylor
  • Matthew Reiten
  • Yuping Yang
  • Jianqiang Gu
  • William M Dennis
  • Chunyuan Song
  • Thomas E Lanier
  • Yiping Zhao
  • Ibraheem A I Al-Naib
  • Mingxia He
  • Abul K Azad
  • Jiangfeng Zhou
  • Xinchao Lu
  • Qirong Xing
  • Zhen Tian
  • Evgenya Smirnova
  • Igal Brener

Detail Information

Publications13

  1. doi request reprint Highly tunable optical activity in planar achiral terahertz metamaterials
    Ranjan Singh
    School of Electrical and Computer Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, USA
    Opt Express 18:13425-30. 2010
    ..The observed effect is due to extrinsic chirality arising from the mutual orientation of the metamaterial plane and the propagation direction of the incident terahertz wave...
  2. doi request reprint Sharp Fano resonances in THz metamaterials
    Ranjan Singh
    School of Electrical and Computer Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, USA
    Opt Express 19:6312-9. 2011
    ..Such sharp resonances could be exploited for biochemical sensing. Besides, the strong current oscillations excited at the Fano resonance frequency could lead to the design of novel terahertz narrow band emitters...
  3. doi request reprint Thermal tunability in terahertz metamaterials fabricated on strontium titanate single-crystal substrates
    Ranjan Singh
    Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
    Opt Lett 36:1230-2. 2011
    ..The experiment opens up avenues for designing tunable terahertz devices by exploiting the temperature-sensitive characteristic of high dielectric constant substrates and complex metal oxide materials...
  4. doi request reprint A close-ring pair terahertz metamaterial resonating at normal incidence
    Jianqiang Gu
    School of Electrical and Computer Engineering, Oklahoma State University, Oklahoma 74078, USA
    Opt Express 17:20307-12. 2009
    ....
  5. doi request reprint A broadband planar terahertz metamaterial with nested structure
    Dibakar Roy Chowdhury
    MPA CINT, Los Alamos National Laboratory, P O Box 1663, MS K771, Los Alamos, NM 87545, USA
    Opt Express 19:15817-23. 2011
    ..Such planar metamaterials, possessing broadband resonant response in the fundamental mode of operation, could have potential applications for extending the properties of metamaterials over a broader frequency range of operations...
  6. ncbi request reprint Tuning the resonance in high-temperature superconducting terahertz metamaterials
    Hou Tong Chen
    MPA CINT, MS K771, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
    Phys Rev Lett 105:247402. 2010
    ..The theoretical model further predicts more efficient resonance tuning in metamaterials consisting of a thinner superconducting split-ring resonator array, which are also verified in subsequent experiments...
  7. doi request reprint Low-loss ultra-high-Q dark mode plasmonic Fano metamaterials
    Wei Cao
    School of Electrical and Computer Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, USA
    Opt Lett 37:3366-8. 2012
    ..These high-Q metamaterials can be used in ultrasensitive label-free terahertz sensing, dense photonic integration, and narrowband filtering...
  8. ncbi request reprint Thin-film sensing with planar terahertz metamaterials: sensitivity and limitations
    John F O'Hara
    MPA CINT, Los Alamos National Laboratory, P O Box 1663, MS K771, Los Alamos, NewMexico 87545, USA
    Opt Express 16:1786-95. 2008
    ..These results are presented in the context of typical biosensing situations and are compared to previous work and other existing sensing platforms...
  9. ncbi request reprint Optically thin terahertz metamaterials
    Ranjan Singh
    School of Electrical and Computer Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, USA
    Opt Express 16:6537-43. 2008
    ..15 skin depth. The resonances reveal a characteristic enhancement; they are strengthened remarkably with increasing SRR thicknesses at sub-skin-depth level and then gradually saturate beyond the skin depth...
  10. pmc Tailoring terahertz plasmons with silver nanorod arrays
    Wei Cao
    School of Electrical and Computer Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, USA
    Sci Rep 3:1766. 2013
    ....
  11. ncbi request reprint Spiral-type terahertz antennas and the manifestation of the Mushiake principle
    Ranjan Singh
    School of Electrical and Computer Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, USA
    Opt Express 17:9971-80. 2009
    ..This is in stark contrast to most of the existing metamaterials...
  12. doi request reprint Tailored resonator coupling for modifying the terahertz metamaterial response
    Dibakar Roy Chowdhury
    MPA CINT, Los Alamos National Laboratory, PO Box 1663, MS K771, Los Alamos, New Mexico 87545, USA
    Opt Express 19:10679-85. 2011
    ..These experiments illustrate additional degrees of freedom in tuning the electromagnetic response, which offers a path to more robust metamaterial designs...
  13. doi request reprint Anomalous terahertz transmission in bow-tie plasmonic antenna apertures
    Yuping Yang
    School of Electrical and Computer Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, USA
    Opt Lett 36:2901-3. 2011
    ....