Engineering Orthogonal Upconversion through Selective Excitation in a Single Nanoparticle
Sign Up to like & getrecommendations! Published in 2023 at "Advanced Functional Materials"
DOI: 10.1002/adfm.202212037
Abstract: Orthogonal upconversion with color‐switchable emissions under different excitation conditions provides new chances to diverse frontier applications of luminescent materials. However, the previous orthogonal upconversion systems compulsorily require the precise control of spatial distributions of dopants… read more here.
Keywords: orthogonal upconversion; single nanoparticle; selective excitation; upconversion ... See more keywords
4D flow imaging with 2D‐selective excitation
Sign Up to like & getrecommendations! Published in 2019 at "Magnetic Resonance in Medicine"
DOI: 10.1002/mrm.27769
Abstract: 4D flow MRI permits to quantify non‐invasively time‐dependent velocity vector fields, but it demands long acquisition times. 2D‐selective excitation allows to accelerate the acquisition by reducing the FOV in both phase encoding directions. In this… read more here.
Keywords: medicine; flow imaging; imaging selective; excitation ... See more keywords
Using variable‐rate selective excitation (VERSE) radiofrequency pulses to reduce power deposition in pulsed arterial spin labeling sequence at 7 Tesla
Sign Up to like & getrecommendations! Published in 2019 at "Magnetic Resonance in Medicine"
DOI: 10.1002/mrm.27944
Abstract: Arterial spin labeling (ASL) is an established noninvasive MRI technique used for cerebral blood flow measurement, which generally suffers from a low signal‐to‐noise ratio (SNR). The use of ultra‐high fields to enhance sensitivity inevitably results… read more here.
Keywords: arterial spin; spin labeling; rate; selective excitation ... See more keywords
Selective excitation localized by the Bloch-Siegert shift and a B 1 + $$ {B}_1^{+} $$ gradient.
Sign Up to like & getrecommendations! Published in 2022 at "Magnetic resonance in medicine"
DOI: 10.1002/mrm.29271
Abstract: PURPOSE To perform B 1 + $$ {B}_1^{+} $$ -selective excitation using the Bloch-Siegert shift for spatial localization. THEORY AND METHODS A B 1 + $$ {B}_1^{+} $$ -selective excitation is produced by an radiofrequency… read more here.
Keywords: selective excitation; excitation; siegert shift; bloch siegert ... See more keywords
Velocity‐selective excitation: Principles and applications
Sign Up to like & getrecommendations! Published in 2022 at "NMR in Biomedicine"
DOI: 10.1002/nbm.4820
Abstract: Velocity‐selective (VS) excitation is a relatively new type of excitation that can be useful for generating image contrast based on spin's motion. This review aims to explain the principles of VS excitation and their utilization… read more here.
Keywords: velocity selective; excitation; selective excitation; velocity ... See more keywords
Photoluminescence varied by selective excitation in BiGdWO 6 :Eu 3+ phosphor
Sign Up to like & getrecommendations! Published in 2017 at "Optical Materials"
DOI: 10.1016/j.optmat.2017.03.038
Abstract: Abstract Eu3+ doped bismuth gadolinium tungstate (BGW), a simplest member of Aurivillius family of layered perovskites, was synthesized by solid-state reaction method. Structural characterisation has been performed by X-Ray diffraction (XRD), Raman spectroscopy, Fourier Transform… read more here.
Keywords: phosphor; spectroscopy; excitation; selective excitation ... See more keywords
Kinetic model for photoluminescence quenching by selective excitation of D/A blends: implications for charge separation in fullerene and non-fullerene organic solar cells
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Materials Chemistry C"
DOI: 10.1039/d0tc01077d
Abstract: The details of the charge separation kinetics at organic donor/acceptor (D/A) heterojunctions are still poorly understood. Particularly in the field of organic solar cells (OSCs), it is not yet clear why systems with low energetic… read more here.
Keywords: state; fullerene; charge separation; separation ... See more keywords
Frequency-selective excitation of high-wavevector phonons
Sign Up to like & getrecommendations! Published in 2018 at "Applied Physics Letters"
DOI: 10.1063/1.5047447
Abstract: We demonstrate the selective excitation of a narrow frequency band of TA phonons throughout the Brillouin zone of germanium using a sinusoidally modulated picosecond laser pulse. The pulse is produced through the combination of two… read more here.
Keywords: frequency selective; pulse; high wavevector; excitation ... See more keywords
Selective Excitation and Amplification of Peak-Power-Scalable Out-of-Phase Supermode in Yb-Doped Multicore Fiber
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2020.2966025
Abstract: We demonstrate selective excitation and coherent amplification in the multicore fiber of the out-of-phase supermode that has equal intensities but interleaved 0/π phases in the neighboring cores. The out-of-phase supermode is beneficial due to its… read more here.
Keywords: amplification; phase supermode; selective excitation; supermode ... See more keywords
Selective excitation of different combinations of LP01 and LP11 polarization modes in a birefringent optical fiber using a Wollaston prism.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.445283
Abstract: We present an effective method for free-space selective excitation of different combinations of LP01 and LP11 polarization modes in a birefringent optical fiber using a Wollaston prism, rotatable polarizer, and achromatic half-wave plate. The method… read more here.
Keywords: lp01 lp11; combinations lp01; different combinations; selective excitation ... See more keywords
Multiple intermodal-vectorial four-wave mixing bands generated by selective excitation of orthogonally polarized LP01 and LP11 modes in a birefringent fiber.
Sign Up to like & getrecommendations! Published in 2022 at "Optics letters"
DOI: 10.1364/ol.456521
Abstract: This study investigates the nonlinear frequency conversions between the six polarization modes of a two-mode birefringent fiber. The aim is to demonstrate that the selective excitation of different combinations of linearly polarized spatial modes at… read more here.
Keywords: intermodal vectorial; selective excitation; wave mixing; birefringent fiber ... See more keywords