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64 182 (0,14s)

Result

A "soft electronic band" and the negative thermooptic effect in strontium titanate

K temperature region.New results regarding features of band edge and near band edge indirect and direct fundamental optical transitions were obtained to higher energies on cooling, the energy of ...

Optics (including laser optics and quantum optics)

  • 2009
  • Jimp
Result

The negative thermo-optic effect in KTaO3: an ellipsometry study

edge indirect and direct optical transitions and their temperature evolutions of the lowest indirect R -> ? optical transitions, 3.7?4.2 eV, was observed to shift? of the optical absorption in th...

BH - Optika, masery a lasery

  • 2015
  • O
  • Link
Result

The negative thermo-optic effect in KTa03 : an ellipsometry study

constantfunctions were determined within the 1-6 eV region. The energies of the band edge indirect and direct optical transitions and their temperature evolutions in the region of the lowest indirect R ? optic...

Condensed matter physics (including formerly solid state physics, supercond.)

  • 2015
  • Jimp
  • Link
Result

A 'Soft Electronic Band' and the Negative Thermooptic

temperature region. On approaching the band gap edge, the optical absorption shows Urbach tail behavior followed by the onset of indirect optical transitions starting at 3.2, the absorption edge ...

BM - Fyzika pevných látek a magnetismus

  • 2009
  • Jx
Result

Tensile strain induced changes in the optical spectra of SrTiO3 epitaxial thin films

Effect of biaxial tensile strains on optical function and band edge transitions. It was found that tensile strains result in a shift of the low energy band gap optical transitions to high...

Condensed matter physics (including formerly solid state physics, supercond.)

  • 2010
  • Jimp
Result

Investigating the influence of transition metal oxides on temperature dependent optical properties of PbCl2–TeO2 glasses for their evaluation as transparent large band gap semiconductors

determined using differential scanning calorimetry. The influence of transition metal oxides on refractive index, position and shift rate of absorption edge, optical band. Thermal properties of glasses – glass

Ceramics

  • 2018
  • Jimp
  • Link
Result

Influence of Doping and Temperature on Solvatochromic Shifts in Optical Spectra of Carbon Dots

and hydrogen-bonding strength of the solvent are reduced. Intrinsic edge band transitions bands belonging to the sp(2)-hybridized core, the edge, and the functional surface the edge band...

CF - Fyzikální chemie a teoretická chemie

  • 2016
  • Jx
  • Link
Result

Photothermal and photocurrent spectroscopy of wide band gap nanocrystalline semiconductors

microscope and the optical absorption edge in the ultraviolet region. In this contribution we summarize how to evaluate the optical absorption edge and the defectsOptical spectroscopy belongs to the most ...

BM - Fyzika pevných látek a magnetismus

  • 2011
  • D
Result

Magneto-optical response of the Weyl semimetal NbAs: Experimental results and hyperbolic-band computations

of the transitions in applied fields. We argue that the detected magneto-optical spectra should of the relevant bands in NbAs. The magneto-optical spectra computed from this HamiltonianThe magneto-optical...

Condensed matter physics (including formerly solid state physics, supercond.)

  • 2023
  • Jimp
  • Link
Result

Combination of Synchrotron Ellipsometry and Table-Top Optical Measurements for Determination of Band Structure of DLC Films

Model of the DLC band structure that took into account valence to conduction band transitions, pi-to-pi* and sigma-to-sigma*, and valence to extended states bands because the maximum energy transition of p...

BM - Fyzika pevných látek a magnetismus

  • 2011
  • Jx
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