Papers – Page 2 – TechConnect Briefs

Coupled surface plasmon resonance on rotated sinusoidal gratings at different azimuthal orientations

Csete M., Szalai A., Tóth E., Somogyi A., Balázs J., Szabó G., University of Szeged, HU

Theoretical study was performed on rotated grating coupling phenomenon on multilayers comprising 416 nm periodic sinusoidal polymer gratings with 35 nm modulation amplitude aligned on a bimetal film made of gold and silver layers. The [...]

Plasmonic structure integrated single-photon detectors for absorptance and polarization contrast maximization

Csete M., Szenes A., Maráczi D., Bánhelyi B., Csendes T., Szabó G., University of Szeged, HU

Superconducting nanowire single photon detectors (SNSPDs) are important for single-photon detection at 1550 nm infrared wavelength in quantum information processing (QIP), telecommunication and astronomy [1, 2]. Absorptance of single photons with a specific polarization has [...]

Upconversion and White Light Generation Properties of Undoped and Yb3+ doped Yttrium Silicate Nano-Phosphors

Cinkaya H., Eryurek G., Bartolo B.D., Boston College, US

The optical systems that consist of rare earth ions embedded in a host lattice are very interesting materials for many applications such as optical sensing, data storage, nonlinear imaging and biomedical applications [1, 2, 3]. [...]

Optical-base pressure sensing ability of Yb3+:Y2Si2O7 nanoparticles

Erdem M., Eryurek G., Dibartolo B., Marmara University, TR

We report the the drastic dependence on pressure of the spectral output of Yb3+:Y2Si2O7 nanoparticles under IR excitation. The spectrum obtained at atmospheric pressure consisted of an intense blue band. At low pressure the spectrum [...]

Micro-Opto-Mechanical Pressure Sensor (MOMPS) in Sin Integrated Photonics Platform

Jansen R., Rochus V., Goyvaerts J., Vandenboch G., van de Voort B., Neutens P., O’Callaghan J., Tilmans H.A.C., Rottenberg X., IMEC, BE

This paper presents a Micro-Opto-Mechanical Pressure Sensor (MOMPS) manufactured in a SiN integrated photonic platform for short wavelength implementation. It implements a single wavelength Mach Zehnder Interferometer (MZI) system allowing a simple readout system. We [...]

Plasmonic Nanopillar Structures for Surface-Enhanced Raman Scattering Applications

Rindzevicius T., Schmidt M.S., Wu K., Thilsted A.H., Lauridsen R.K., Alstrøm T.S., Palla M., Yang J., Boisen A., Technical University of Denmark, DK

Nanosized noble metal structures support localized surface plasmon (LSPR) resonances that depend on their dimensions, shapes and compositions. Particle LSPR’s can be used to spatially confine the incident light and produce enormous electromagnetic field enhancement [...]

The effects of the inverse parablic potential on transition rates in a cylindrical nanowire

Tshipa M., University of Botswana, BW

The effect of the inverse parabolic potential on optical transitions in a cylindrical wire is investigated. The excitation beam is one of circularly polarized light. Evaluation of the matrix elements leads to the selection rule [...]

Effect of Pressure and Excitation Power on Up-conversion Assisted White Light Emission in Yttrium Oxide and Silicate Nanophosphors

Eryurek G., Erdem M., Bilir G., Istanbul Technical University, TR

The production of warm artificial white light (WL) become a big challenge of engineers and scientists after the revolutionary introduction of incandescent lamp by Thomas Edison. Although several strategies have been developed in past, none [...]

Upconversion emission properties and un-expected white light emission from Er3+/Yb3+ doped Gd2O3 nano – phosphors

Bilir G., Erguzel O., Eryurek G., Istanbul Technical University, TR

Gd2O3 nano-powders doped with Er3+ and Yb3+ were synthesized using the combustion method. X-ray diffraction and the scanning electron microscope techniques were used to estimate the crystalline sizes and the morphologies of the materials. The [...]

Research of Transfer Technique of High-Quality Aluminum Thin-Film for Bio-Sensing

Chang K-M, Chen Y-M, Lai C-H., Lai H-L., Lai K-J., Lai Y-L., Zhang Y-X., Lai C-H., Lai H-L., Lai K-J., Lai Y-L., Lai C-H., Lai H-L., Lai K-J., Lai Y-L., Lai C-H., Lai H-L., Lai K-J., Lai Y-L., Lee F-C., Fan C-H., National Chiao Tung University ; Chung Hua University, TW

Since the high environmental sensitivity of the surface plasmon resonance, plasmonic metal materials have been rapidly applied in bio-sensing and related applications. The strong localized optical fields can effectively interact with bio-molecules and nanoparticles. Furthermore, [...]