Results 41 to 50 of about 41,361 (307)

Electrically tunable ring resonators incorporating nematic liquid crystals as cladding layers [PDF]

, 2003
We have demonstrated electrical tuning in ring resonators fabricated from silicon-on-insulator wafers by incorporating nematic liquid crystals (NLCs) as the waveguide top and side cladding material. Photolithographically defined electrodes aligned around
Dalton, Larry, Gunn, Cary, Lawson, Rhys, Maune, Brett, Scherer, Axel   +4 more
core   +1 more source

High-Power-Compatible Thick Silicon-on-Insulator Waveguide: An Implementation in Optical Phased Array

IEEE Photonics Journal
High-power transmission capability is a critical yet insufficiently explored frontier in integrated photonics. Owing to the restricted optical cross-sectional area of the 220 nm-thick silicon layer, conventional SOI platform is incapable of managing the ...
Jingsi Chen, Daixin Lian, Shi Zhao, Zhituo Chen, Yongqi Ye, Jingye Chen, Yaocheng Shi   +6 more
doaj   +1 more source

Effect of Gate Dielectric Material on the Electrical Properties of MoSe₂-Based Metal–Insulator–Semiconductor Field-Effect Transistor

Crystals, 2022
In this study, we fabricated metal–insulator–semiconductor field-effect transistors (MISFETs) based on nanolayered molybdenum diselenide (MoSe2) using two insulator materials, silicon dioxide (SiO2) and silicon nitride (SiN).
Abdelkader Abderrahmane, Pan-Gum Jung, Changlim Woo, Pil Ju Ko   +3 more
doaj   +1 more source

Porous Silicon on Insulator Technology

Journal of Scientific Research and Reports, 2022
In this research, the structure, optical, and electrical properties of porous silicon prepared by electrochemical etching at current density 50 mA /cm2 with etching time 10 min, before and after rapid thermal oxidation process (RTO) at different oxidation temperature from (500-700) Ċ and constant oxidation time 60 s.  Under optimum conditions, the pore
openaire   +1 more source

Interaction of Ladle Slag With Varying SiO2 Content and Recyclate‐Based MgO–C Refractories

Advanced Engineering Materials, EarlyView.
Ladle slags (CaO/Al2O3 = 1) with 1–20 wt% SiO2 were investigated in contact with industrial MgO–C refractories fabricated from fresh magnesia and 50 wt% recyclate. The sessile drop method at 1600°C reveals intensive gas formation, delayed slag infiltration in recyclate‐based samples, and, under high‐SiO2 slag, formation of a dense MgAl2O4‐rich ...
Anton Yehorov, Eldar Salpagarov, Anhelina Mospan, Till Manon Jannis Stadtmüller, Thomas Schemmel, Christos Georgios Aneziris, Olena Volkova   +6 more
wiley   +1 more source

Deterministic Detection of Single Ion Implantation

Advanced Engineering Materials, EarlyView.
Focused ion beam implantation with high detection efficiencies will enable the rapid and scalable fabrication of advanced spin‐based technologies such as qubits. This work presents the detection efficiencies of a wide range of ions implanted into solid‐state hosts, with efficiencies of >90% recorded for ion species and substrate combinations of ...
Mason Adshead, Lok Kan Wan, Maddison Coke, Janet Jacobs, Nicholas F. L. Collins, Mark C. Rosamond, Richard J. Curry   +6 more
wiley   +1 more source

An Integrated Evanescent Field Sensor for the Simultaneous Measurement of Layer Refractive Index and Thickness

Sensors, 2021
A novel integrated sensor for the simultaneous measurement of layer refractive index and thickness based on evanescent fields is proposed. The theoretical limits for the accuracy of the sensor were examined for the example of a TiO2 layer.
Matthias Jäger, Jürgen Bruns, Jessica Schneidewind, Cay Pinnow, Hassan Gargouri, Klaus Petermann   +5 more
doaj   +1 more source

Silicon on insulator MESFETs for RF amplifiers [PDF]

Solid-State Electronics, 2010
CMOS compatible, high voltage SOI MESFETs have been fabricated using a standard 3.3V CMOS process without any changes to the process flow. A 0.6μm gate length device operates with a cut-off frequency of 7.3GHz and a maximum oscillation frequency of 21GHz.
Seth J, Wilk, Asha, Balijepalli, Joseph, Ervin, William, Lepkowski, Trevor J, Thornton   +4 more
openaire   +2 more sources

Tailoring Functional Properties of Ti–Ni–Cu Shape Memory Alloy Thin Films for MEMS Actuators

Advanced Engineering Materials, EarlyView.
A comprehensive study of critical parameters required to develop well‐performing Ti–Ni–Cu thin film shape memory alloy microactuators is provided. Materials science and device integration aspects are integrated by addressing structural and physical relationships using complementary characterization techniques as well as a practical fabrication solution
Elaheh Akbarnejad, Aleksander Kostka, Gowtham Arivanandhan, Yujiao Li, Alan Savan, Manfred Kohl, Alfred Ludwig   +6 more
wiley   +1 more source

GaSb-based integrated lasers and photodetectors on a silicon-on-insulator waveguide circuit for sensing applications in the shortwave infrared [PDF]

, 2012
We report our results on GaSb photodiodes and lasers integrated on a Silicon-On-Insulator waveguide circuit. The photodiodes operate at room temperature with 0.4A/W responsivity for grating-assisted coupling and >1 A/W for an evanescent design.
Cerutti, L, Gassenq, Alban, Hattasan, Nannicha, Rodriguez, JB, Roelkens, Günther, Tournie, E   +5 more
core   +1 more source