Results 71 to 80 of about 14,380 (286)
Recording of the Multiplexed Bragg Diffraction Gratings for Waveguides Using Phase Mask
Photonics, 2020 The paper describes a stable method for multiplexed recording of the Bragg diffraction gratings for waveguides using a phase mask. Diffraction waveguides in this experiment were made of photo-thermo-refractive glass.
Maria Shishova +3 more
doaj +1 more source
Photonic Sensors, 2022 In this paper, a Bragg reflector is proposed by placing periodic metallic gratings in the center of a metal-insulator-metal (MIM) waveguide. According to the effective refractive index modulation caused by different waveguide widths in a period, a ...
Liang Zeng +8 more
doaj +1 more source
Liquid Metal‐Based Stretchable Strain Sensor for Fruit Growth Monitoring
Advanced Materials Technologies, EarlyView.Schematic overview of the fruit growth sensor development workflow, including sensor fabrication by injection molding, electromechanical and environmental characterization, mechanical stability testing, electronic readout integration, and outdoor field validation for monitoring of fruit growth under practical orchard conditions.
Asad Ullah +7 more
wiley +1 more source
ULTRASOUND DETECTION BY APPLYING FIBER BRAGG GRATINGS [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2019 Subject of Research. This paper presents the results of an experimental study on the possibility of applying single fiber Bragg gratings as sensitive elements for detecting ultrasonic impacts in gaseous or liquid media and at placing fiber Bragg ...
Alexander A. Vlasov +5 more
doaj +1 more source
Bragg grating based integrated photonic Hilbert transformers
, 2013 Planar Bragg grating based photonic Hilbert transformers are experimentally demonstrated in this work. Planar Bragg gratings are utilized to implement a general Hilbert transform, a fractional order Hilbert transform and terahertz bandwidth Hilbert ...
Smith, P.G.R. +7 more
core +1 more source
Advanced Materials Technologies, EarlyView.One‐dimensional C4N2H14PbBr4 is shown to have a quasi‐direct electronic band structure and strongly anisotropic transport with polarized broadband emission. A GW/Bethe–Salpeter excited‐state force formalism, supported by polarized Raman and temperature‐dependent photoluminescence, identifies low–frequency Pb–Br phonons that drive ultrafast exciton self‐
Rijan Karkee +7 more
wiley +1 more source
Thermo‐Derived Cholesteric Liquid Crystal Elastomer Pattern with Composite Structural Colors
Advanced Optical Materials, EarlyView.A thermochromic cholesteric liquid crystal (CLC) oligomer was synthesized for the preparation of CLC elastomer (CLCE) films with dual reflection bands. Subsequently, a CLCE pattern with composite structural colors was prepared, which was suitably applied for decoration and anti‐counterfeiting.
Li Zhong, Yi Li, Wei Liu, Yonggang Yang
wiley +1 more source
Diyala Journal of Engineering Sciences, 2015 Tilted Fiber Bragg Gratings (TFBGs) are designed and implemented at the 1550 nm communication window in Institute of Optoelectronic Technology, China Jiliang University, Hangzhou, China.
Riyadh Khlf Ahmed +3 more
doaj +1 more source
Bioresorbable optical fiber Bragg gratings [PDF]
Optics Letters, 2018 We demonstrate, for the first time, an inscription and wet dissolution study of Bragg gratings in a bioresorbable calcium-phosphate glass optical fiber. Bragg gratings, with average refractive index changes of 5.8×10-4, were inscribed using 193 nm excimer laser radiation.
Pugliese D. +6 more
openaire +4 more sources