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   Articles with "optical transitions" as a keyword



Ultrafast Depolarization of Transient Absorption as a Probe of Plasmonicity of Optical Transitions in Ag Nanoclusters

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recommendations! Published in 2017 at "Plasmonics"

DOI: 10.1007/s11468-017-0678-y

Abstract: Time-resolved polarization-dependent transient absorption has been used to study the plasmonicity of the optical transitions of Ag nanoparticles and nanoclusters. The lack of a measureable polarization anisotropy in the nanoparticles is indicative of the ultrafast… read more here.

Keywords: optical transitions; transitions nanoclusters; plasmonicity optical; transient absorption ... See more keywords

Anisotropic optical constants and inter-band optical transitions in layered semiconductor TlGaSe 2

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recommendations! Published in 2017 at "Applied Surface Science"

DOI: 10.1016/j.apsusc.2016.11.005

Abstract: Abstract The dielectric function spectra of TlGaSe 2 crystal with quasi-two-dimensional layered structure were studied over the photon range 1.5–5.0 eV in the temperature range 80–400 K. The (100) and (001) surfaces were accessed by spectroscopic ellipsometry… read more here.

Keywords: optical transitions; band optical; dielectric function; anisotropic optical ... See more keywords
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Optical transitions in lysozyme mediated zinc oxide nanoparticles probed by deep UV photoluminescence

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recommendations! Published in 2020 at "Optik"

DOI: 10.1016/j.ijleo.2019.163622

Abstract: Abstract Lysozyme mediated zinc oxide nanoparticles (L:ZnO) synthesized by sol-gel method were characterized at room temperature using x-ray diffraction, scanning electron microscopy and absorption spectroscopy for structural, morphological and optical properties, respectively. A deep UV… read more here.

Keywords: optical transitions; oxide nanoparticles; zinc oxide; lysozyme mediated ... See more keywords

Novel identification of ultraviolet/visible Cr6+/Cr3+ optical transitions in borate glasses

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recommendations! Published in 2018 at "Journal of Alloys and Compounds"

DOI: 10.1016/j.jallcom.2018.03.351

Abstract: Abstract Chromium oxide-doped borate glasses with composition xP2O5-(70-x) B2O3- 29.5Li2O-0.5 Cr2O3 (x = 0.0, 0.5, 1.0, 1.2, 1.5 and 2.0 mol %) were prepared following the melt quenching technique. A detailed deconvolution process, applied to their optical absorption… read more here.

Keywords: optical transitions; cr6 cr3; cr6; ultraviolet visible ... See more keywords

Theory of contact electrification: Optical transitions in two-level systems

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recommendations! Published in 2018 at "Nano Energy"

DOI: 10.1016/j.nanoen.2018.08.015

Abstract: Abstract The increasing need to power networks of trillions of sensors and devices for the Internet of Things requires effective generators to harvest low-frequency ambient mechanical vibrations. This type of energy is different from conventional… read more here.

Keywords: optical transitions; electrification optical; contact electrification; model ... See more keywords

Morphological and Optical Transitions during Micelle-Seeded Chiral Growth on Gold Nanorods.

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recommendations! Published in 2022 at "ACS nano"

DOI: 10.1021/acsnano.2c08668

Abstract: Chiral plasmonics is a rapidly developing field where breakthroughs and unsolved problems coexist. We have recently reported binary surfactant-assisted seeded growth of chiral gold nanorods (Au NRs) with high chiroptical activity. Such a seeded-growth process… read more here.

Keywords: growth; gold nanorods; optical transitions; morphological optical ... See more keywords
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Unconventional valley-dependent optical selection rules and landau level mixing in bilayer graphene

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recommendations! Published in 2020 at "Nature Communications"

DOI: 10.1038/s41467-020-16844-y

Abstract: Selection rules are of vital importance in determining the basic optical properties of atoms, molecules and semiconductors. They provide general insights into the symmetry of the system and the nature of relevant electronic states. A… read more here.

Keywords: optical transitions; bilayer graphene; selection; valley dependent ... See more keywords

Fundamental optical transitions in hexagonal boron nitride epilayers

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recommendations! Published in 2024 at "APL Materials"

DOI: 10.1063/5.0234673

Abstract: Fundamental optical transitions in hexagonal boron nitride (h-BN) epilayers grown on sapphire by metal–organic chemical vapor deposition (MOCVD) using triethylboron as the boron precursor have been probed by photoluminescence (PL) emission spectroscopy. The low temperature… read more here.

Keywords: boron nitride; boron; transitions hexagonal; optical transitions ... See more keywords
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Charge-transfer states and optical transitions at the pentacene-TiO2 interface

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recommendations! Published in 2017 at "New Journal of Physics"

DOI: 10.1088/1367-2630/aa616d

Abstract: This work was financed by the Deutsche Forschungsgemeinschaft (DFG) through the SFB 1083 project. MPL, DSP and PK also acknowledges support from Spanish MINECO (Grants No. MAT2013-46593-C6-2-P and MAT2016-78293-C6-4-R) and PK also acknowledges financial support… read more here.

Keywords: optical transitions; states optical; transitions pentacene; pentacene tio2 ... See more keywords

Identification of highly forbidden optical transitions in highly charged ions

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recommendations! Published in 2024 at "Physical Review Applied"

DOI: 10.1103/physrevapplied.22.054059

Abstract: Optical clocks represent the most precise experimental devices, finding application in fields spanning from frequency metrology to fundamental physics. Recently, the first highly charged ions (HCI) based optical clock was demonstrated using Ar$^{13+}$, opening up… read more here.

Keywords: highly forbidden; identification highly; forbidden optical; highly charged ... See more keywords

Transform-Limited Photons From a Coherent Tin-Vacancy Spin in Diamond.

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recommendations! Published in 2020 at "Physical review letters"

DOI: 10.1103/physrevlett.124.023602

Abstract: Solid-state quantum emitters that couple coherent optical transitions to long-lived spin qubits are essential for quantum networks. Here we report on the spin and optical properties of individual tin-vacancy (SnV) centers in diamond nanostructures. Through… read more here.

Keywords: tin vacancy; spin; optical transitions; transform limited ... See more keywords