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WG3 - Novel Photonic Materials and Metamaterials Session Presider: Vinod Menon
1:30-3:00 Kahiki/Lily
WG3.1 -
Leaky Mode Coupling in Asymmetric Subwavelength Dielectric Gratings
01:30-01:45
2017-10-04 01:30 2017-10-04 01:45 America/Denver Leaky Mode Coupling in Asymmetric Subwavelength Dielectric Gratings Asymmetric subwavelength dielectric gratings can couple to symmetry-protected leaky modes, enabling normal incidence filtering. Finite element simulations calculate the transmittance profile and dispersion relation of a two-step high contrast grating. Further, linewidth broadening due to leaky mode coupling and angular dependence are established. Hilton Santa Fe Historic Plaza Kahiki/Lily

    M. Barrow , University of Michigan , Ann Arbor, MI, United States

    Asymmetric subwavelength dielectric gratings can couple to symmetry-protected leaky modes, enabling normal incidence filtering. Finite element simulations calculate the transmittance profile and dispersion relation of a two-step high contrast grating. Further, linewidth broadening due to leaky mode coupling and angular dependence are established.
WG3.2 -
Terahertz frequency-selective surface and guided-mode resonance filters
01:45-02:00
2017-10-04 01:45 2017-10-04 02:00 America/Denver Terahertz frequency-selective surface and guided-mode resonance filters Terahertz filters based on frequency-selective surfaces patterned on the low-loss cyclo- olefin polymer Zeonor shows broad and narrow-band resonances. This stem from FSS response and coupling to substrate guided modes, respectively. Very narrow linewidths with quality factors exceeding 100 are measured experimentally and confirmed numerically. Hilton Santa Fe Historic Plaza Kahiki/Lily

    R. Beccherelli , CNR-IMM, Roma, Italy, A. Ferraro , CNR-IMM, Roma, Italy R. Caputo , University of Calabria, Rende, Italy D. Zografopoulos , CNR-IMM, Roma, Italy

    Terahertz filters based on frequency-selective surfaces patterned on the low-loss cyclo- olefin polymer Zeonor shows broad and narrow-band resonances. This stem from FSS response and coupling to substrate guided modes, respectively. Very narrow linewidths with quality factors exceeding 100 are measured experimentally and confirmed numerically.
WG3.3 -
Long-Wave Infrared Filtering in Subwavelength Dielectric Gratings Invited
02:00-02:30
2017-10-04 02:00 2017-10-04 02:30 America/Denver Long-Wave Infrared Filtering in Subwavelength Dielectric Gratings Low-loss dielectric structures with narrowband transmission offer a dramatic impact on imaging capabilities in the long-wavelength infrared (LWIR, 8-12 microns). The design, simulation, and experimental demonstration of silicon/air subwavelength gratings exhibiting LWIR broadband reflectance and narrowband transmittance based on leaky-mode coupling will be presented. Hilton Santa Fe Historic Plaza Kahiki/Lily

    J. Phillips , University of Michigan, Ann Arbor, MI, United States, M. Scherr , University of Michigan, Ann Arbor, MI, United States M. Barrow , University of Michigan, Ann Arbor, MI, United States

    Low-loss dielectric structures with narrowband transmission offer a dramatic impact on imaging capabilities in the long-wavelength infrared (LWIR, 8-12 microns). The design, simulation, and experimental demonstration of silicon/air subwavelength gratings exhibiting LWIR broadband reflectance and narrowband transmittance based on leaky-mode coupling will be presented.
WG3.4 -
Broadband and high-speed 1300nm electroabsorption modulator using InAlGaAs multiple quantum wells
02:30-02:45
2017-10-04 02:30 2017-10-04 02:45 America/Denver Broadband and high-speed 1300nm electroabsorption modulator using InAlGaAs multiple quantum wells High-bandgap offset 1300nm InAlGaAs quantum well (QW) has been used for electroabsorption modulator. High conduction/valance bandgap offset ratio allows strong exciton effect under high electric field, leading to broadband operation. >10dB extinction ratio from 1280nm to 1320nm and 40GHz of electical-to-optical response has been demonstrated. Hilton Santa Fe Historic Plaza Kahiki/Lily

    Y. Chiu , NSYSU, Kaohsiung, Taiwan, B. Chen , NSYSU, Kaohsiung, Taiwan

    High-bandgap offset 1300nm InAlGaAs quantum well (QW) has been used for electroabsorption modulator. High conduction/valance bandgap offset ratio allows strong exciton effect under high electric field, leading to broadband operation. >10dB extinction ratio from 1280nm to 1320nm and 40GHz of electical-to-optical response has been demonstrated.
WG3.5 -
Control of Optical Amplification Process with Extremely Low Background Loss in Er:Al2O3 Waveguides
02:45-03:00
2017-10-04 02:45 2017-10-04 03:00 America/Denver Control of Optical Amplification Process with Extremely Low Background Loss in Er:Al2O3 Waveguides We report on record low-loss single mode a-Al2O3 planar waveguides and growth optimization of a-Er2O3 layers to control erbium-doping level of a-Al2O3 layers realized using Atomic Layer Deposition (ALD). Effect of growth cycle ratio of as grown Er2O3/Al2O3 layers on Photoluminescence (PL) is reported. Hilton Santa Fe Historic Plaza Kahiki/Lily

    M. Demirtas , Anadolu University, Eskisehir, Turkey, C. Odaci , Anadolu University, Eskisehir, Turkey N. Kosku Perkgoz , Anadolu University, Eskisehir, Turkey C. Sevik , Anadolu University, Eskisehir, Turkey F. Ay , Anadolu University, Eskisehir, Turkey

    We report on record low-loss single mode a-Al2O3 planar waveguides and growth optimization of a-Er2O3 layers to control erbium-doping level of a-Al2O3 layers realized using Atomic Layer Deposition (ALD). Effect of growth cycle ratio of as grown Er2O3/Al2O3 layers on Photoluminescence (PL) is reported.