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3D printed microrobots controlled by light – Towards environmental and biomedical applications
No full textMicrorobots are rapidly developing as a valuable solution for performing microscale tasks, among which they seem particularly promising for biomedical and environmental applications. Two-photon polymerization enables the fabrication of microstructures with complex shapes, while focused laser beams allow for precise manipulation of such 3D printed objects. Whereas several challenges have yet to be overcome before microrobots can perform in the real world, many interesting laboratory applications have already been demonstrated, while others are being explored
Integrated single photons sources based on tapered optical nanofibers
No full textWe present the optical and quantum properties of highly efficient perovskite nanocubes and discuss our strategy towards a compact integrated single photon source
Plasmonic nanoantennas and their applications
No full textWe review recent work on plasmonic nanoantennas and their applications in nonlinear optics and in optoelectronics
Radiation control with exceptional points in non-Hermitian plasmonic systems
No full textIn this paper, we introduce our research based on the singular eigenstates in EP. The first is formation of circular polarization eigenstates and the second is formation of Huygens dipoles at EPs. The studies introduced in this paper provide new photonic functionalities caused by the singular eigenstates at EP in NH systems
Electromagnetic modelling of Leaf Water Potential under Ultra-Wide Band Microwaves Sensing
No full textNoninvasive sensor of plant that measure leaf concentration water is purposed. It is based on a microstrip structure where the loaded layer is represented by a mathematical model. The leaf is represented with the cellulose Cole-Debye model, that includes fresh water molecules which are simulated with different size to characterize the turgescence and plasmolysis behavior. The concept is validated and compared to Cole-Debye model for different situation of stress leaf, represented by an equivalent dielectric cell over the sensor
Comparison of Electric Field Strength Generated by The Biconical Antenna and E-Field Generator Through RS103
No full textIn this research, the effect of the different transmit antennas on the equipment was compared between 30-100MHz under the RS103 test described in MIL-STD-461G standard. First, dummy equipment under test (EUT) was designed consisting of two metallic structures connected each other with a two-meter-long shielded cable. Second, a digital thermometer was used as a EUT to perform RS103 test by using biconical and E-field generator to improve the comprehensibleness of susceptibility
Electromagnetic Vortices: Properties and Applications
No full textVortex states of electromagnetic fields, or twisted photons, were shown experimentally to modify angular momentum selection rules when absorbed by atoms
Simultaneously photonic and phononic metamaterials
No full textMetamaterials have been primarily studied in electromagnetics and acoustics to date. In the fields of photonic and phononic crystals, structures simultaneously exhibiting both optical and acoustic---so-called phoXonic\textemdash properties---have been proposed, but this has not been done for metamaterials. Here we propose the concept of a phoxonic metamaterial, and demonstrate a working design in the GHz electromagnetic and kHz acoustic range that can simultaneously exhibit negative electromagnetic refraction at the same time as negative acoustic refraction
Full-vectorial polynomial modal method for circular waveguides. Application to reflection and diffraction at the end of radially inhomogeous cylinders.
No full textWe develop a modal method for radially inhomogeneous waveguides. The formulation is derived with the two transverse components of the magnetic field. The algebraic eigensystem is solved by using Tchebycheff polynomials and a tau method
Manipulating the Polarization of Electromagnetic Waves via Metastructures
No full textIn this work, we present our recent work on manipulating the polarization of electromagnetic waves with metastructures. The investigations provide some guidelines to control the polarization of electromagnetic waves at subwavelength scale