Results 101 to 110 of about 47,863 (340)

Cryogenic Focused Ion Beam Milling to Investigate the Anisotropic Magnetotransport Properties of Bismuth Microcrystals

open access: yesAdvanced Functional Materials, EarlyView.
The highly anisotropic Fermi surface of bismuth results in variations in magnetotransport properties across different crystallographic directions, which can be characterized by studying microcrystals. To avoid the observed surface melting under room temperature Focused Ion Beam (FIB) irradiation, two low‐temperature FIB fabrication methods are proposed
Amaia Sáenz‐Hernández   +6 more
wiley   +1 more source

Growth of Millimeter‐Sized BaTaO2N Single Crystals by an NH3‐Assisted BaCl2 Flux Method

open access: yesAdvanced Functional Materials, EarlyView.
Millimeter‐sized BaTaO2N single crystals are successfully grown from a BaCl2 flux under NH3 flow. Their comprehensive characterization, including dielectric properties, is demonstrated, and the possible growth mechanisms are discussed. Abstract Perovskite‐type oxynitrides have attracted considerable attention due to their excellent photocatalytic ...
Ginji Harada   +2 more
wiley   +1 more source

Long-range coupling of silicon photonic waveguides using lateral leakage and adiabatic passage

open access: yes, 2013
We present a new approach to long range coupling based on a combination of adiabatic passage and lateral leakage in thin shallow ridge waveguides on a silicon photonic platform.
Greentree, A. D.   +3 more
core   +1 more source

Quantifying Spin Defect Density in hBN via Raman and Photoluminescence Analysis

open access: yesAdvanced Functional Materials, EarlyView.
An all‐optical method is presented for quantifying the density of boron vacancy spin defects in hexagonal boron nitride (hBN). By correlating Raman and photoluminescence signals with irradiation fluence, defect‐induced Raman modes are identified and established an relationship linking optical signatures to absolute defect densities. This enables direct
Atanu Patra   +8 more
wiley   +1 more source

Monolithic beam splitter in silicon-on-insulator

open access: yesOptics Express, 2004
Inductively coupled plasma reactive ion etching is used to fabricate the monolithic beam splitter in silicon-on-insulator wafer. The near-field image shows that the symmetric 1x2 T-branch works well. The rms roughness of the corner mirror surfaces is measured by atomic force microscope, and the sidewall surface roughness of rib waveguide is evaluated ...
Yongjin, Wang   +4 more
openaire   +2 more sources

Self Phase Modulation and Stimulated Raman Scattering due to High Power Femtosecond Pulse Propagation in Silicon-on-Insulator Waveguides. [PDF]

open access: yes, 2005
Self Phase Modulation (SPM) and Stimulated Raman Scattering (SRS) in silicon waveguides have been observed and will be discussed theoretically using a modified Nonlinear Schrödinger Equation.
Ctyroky, J.   +7 more
core   +1 more source

Silicon nanophotonic ring resonators sensors integrated in reaction tubes [PDF]

open access: yes, 2013
Enzyme-linked immunosorbent assays (ELISA) are the most popular immunoassay techniques performed every day in hospitals and laboratories and they are used as a diagnostic tool in medicine and plant pathology, as well as a quality-control check in various
Bienstman, Peter   +6 more
core   +1 more source

Thermoplasmonic Nanorings for Passive Solar‐Responsive Smart Windows in Energy‐Efficient Building Applications

open access: yesAdvanced Functional Materials, EarlyView.
This work presents scalable silver nanorings with tunable thermoplasmonic properties for smart window applications. By responding to sunlight and environmental changes, the nanorings modulate near‐infrared light and reduce heat transmission. Their unique geometry enables dynamic optical control, offering a promising route toward energy‐efficient ...
Xavier Baami González   +1 more
wiley   +1 more source

Silicon on insulator material technology

open access: yesElectronics Letters, 1995
A silicon on insulator material technology based on wafer bonding is described, in which a heat treatment induces an in-depth microslicing of one of the two bonded wafers previously implanted with hydrogen. The basic phenomena, and the first physical and electrical characterisations are discussed briefly.
openaire   +1 more source

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