Photonics Research, Volume. 3, Issue 1, 5(2015)

An optical-sensing modality that exploits Dyakonov–Tamm waves

Farhat Abbas1, Akhlesh Lakhtakia2, Qaisar A. Naqvi1, and and Muhammad Faryad3、*
Author Affiliations
  • 1Department of Electronics, Quaid-i-Azam University, Islamabad 45320, Pakistan
  • 2Department of Engineering Science and Mechanics, Pennsylvania State University, University Park, Pennsylvania 16802, USA
  • 3Department of Physics, Lahore University of Management Sciences, Lahore 54792, Pakistan
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    Figures & Tables(5)
    Schematic representations: (a) proposed optical-sensing modality, and (b) underlying canonical boundary-value problem.
    Values of relative wavenumbers q/k0 of DT waves guided by the interface of magnesium fluoride (nd=1.377) and the chosen titanium-oxide chiral STF infiltrated by a fluid of refractive index nℓ. In Figs. 2–4, the blue and red curves represent different DT waves.
    Values of the angle of incidence θincC in the prism-coupled configuration in relation to the refractive index nℓ of the fluid infiltrating the chiral STF, as predicted by the canonical boundary-value problem.
    Dynamic sensitivity ρ as a function of nℓ in the prism-coupled configuration computed from the predicted data presented in Fig. 3.
    Absorptances (a) As and (b) Ap plotted as functions of θinc for Np=LSTF/2Ω∈{4,5,6}, when nℓ=1.33, χv=15°, Ld=200 nm, and nd=1.377+10−4i. Downward arrows indicate the peaks that represent the excitation of DT waves.
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    Farhat Abbas, Akhlesh Lakhtakia, Qaisar A. Naqvi, and Muhammad Faryad. An optical-sensing modality that exploits Dyakonov–Tamm waves[J]. Photonics Research, 2015, 3(1): 5

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    Paper Information

    Category: Surface Waves

    Received: Oct. 14, 2014

    Accepted: Nov. 5, 2014

    Published Online: Apr. 15, 2015

    The Author Email: and Muhammad Faryad (muhammad.faryad@lums.edu.pk)

    DOI:10.1364/PRJ.3.000005

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