Excitonic giant-dipole potentials in cuprous oxide

Sensitivity of the Isoscalar Giant Dipole Resonance to Optical Potentials

Synthesis of Cuprous Oxide by Thermal Treatment in Liquid Paraffin

Cu2O nanoparticles were synthesized by thermal treatment in liquid paraffin without any inert gas protection using nano structures of Schiff base copper (II) complex (1) as precursor. Liquid paraffin was used as solvent and reductant. Span 80 was applied to control the morphology of cuprous oxide nanoparticles. The nano structure of the complex was characterized by X-ray diffraction measurement...

Photoionization cross section of 1s orthoexcitons in cuprous oxide

Laszlo Frazer,1,* Kelvin B. Chang,2 Kenneth R. Poeppelmeier,2,3 and John B. Ketterson1,4 1Department of Physics, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3112, USA 2Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3112, USA 3Chemical Sciences and Engineering Division, Argonne National Laboratory, 9700 South Cass Avenue, ...

Third-harmonic generation in cuprous oxide: efficiency determination.

The efficiency of third-harmonic generation in cuprous oxide was measured. Intensities followed a noncubic power law that indicates nonperturbative behavior. Polarization anisotropy of the harmonic generation was demonstrated and related to the third-order susceptibility. The results will influence the understanding of harmonic generation in centrosymmetric materials and are potentially relevan...

Evaluation of defects in cuprous oxide through exciton luminescence imaging

The various decay mechanisms of excitons in cuprous oxide (Cu2O) are highly sensitive to defects which can relax selection rules. Here we report cryogenic hyperspectral imaging of exciton luminescence from cuprous oxide crystals grown via the floating zone method showing that the samples have few defects. Some locations, however, show strain splitting of the 1s orthoexciton triplet polariton lu...