Exciton mediated self-organization in glass driven by ultrashort light pulses
Abstract
We propose an exciton-polariton-mediated self-organization effect in transparent SiO2 glass under intense femtosecond light irradiation. Interference and dipole-dipole interaction of polaritons causes formation of gratings of dielectric polarization. Due to an ultrafast exciton self-localization into a quasicrystal structure, the polariton gratings remain frozen in glass and a permanent three-dimensional image of exciton-polariton gas is created. We show that coherent effects in propagation of exciton-polaritons can serve as a tool for nanostructuring and fabrication of 5-dimensional optical memories in glass, opening new horizons for polaritronics.
- Publication:
-
Applied Physics Letters
- Pub Date:
- July 2012
- DOI:
- Bibcode:
- 2012ApPhL.101e3120B
- Keywords:
-
- dielectric polarisation;
- diffraction gratings;
- excitons;
- glass;
- high-speed optical techniques;
- polaritons;
- quasicrystals;
- radiation effects;
- transparency;
- 71.35.-y;
- 71.36.+c;
- 77.22.Ej;
- 78.20.Ci;
- 78.47.J-;
- 61.44.Br;
- Excitons and related phenomena;
- Polaritons;
- Polarization and depolarization;
- Optical constants;
- Ultrafast pump/probe spectroscopy;
- Quasicrystals