Visualizing the electromagnetic field transformation inside a microwave mode conversion region has been considered to be only realizable by simulation studies. For the first time, we present a comprehensive experimental observation of the electric field transformation occurring inside a metallic waveguide TE(01)-to-TE(02) mode converter. An efficient electro-optic (EO) probe and its associated ...

We develop a novel method of creating optical vortex array by the conversion of a standing-wave Laguerre-Gaussian (LG) mode. Theoretically, by employing the transformational relation, the standing-wave LG mode is verified to be transformed from a pair of crisscrossed Hermite-Gaussian (HG) modes, embedded with optical vortex array, consists of a TEMn,m mode and a TEMm,n mod...

Sulphate size distributions were measured at the coastal station of Mumbai (formerly Bombay) through 1998, during the Indian ocean experiment (INDOEX) "rst "eld phase (FFP), to "ll current gaps in size-resolved aerosol chemical composition data. The paper examines meteorological, seasonal and source-contribution e!ects on sulphate aerosol and discusses potential e!ects of sulphate on regional c...

We present a photonic-plasmonic mode converter using modecoupling-based polarization rotation for connecting a silicon wire and hybrid plasmonic waveguides on a metal-inserted silicon platform. By using the polarization rotator based on defect-introduced silicon wire waveguide, the proposed mode converter can convert the photonic TE mode into the hybrid plasmonic TM mode. At the beginning, to i...

The results of NDE and material characterization with mode conversion of air-coupled ultrasound into plate and surface waves in solids are reported. Singleand both-sided configurations of efficient slanted wave conversion are developed and tested for various materials. An alternative option is based on the excitation of cylindrical plate and surface waves by a focused air-coupled beam incident ...