Search results

Sort By:

Limit search:

Modification of the Spontaneous Emission of Dye Molecules in Photonic Crystals

100%

Petrov E., Bogomolov V., Kalosha I., Gaponenko S.

Acta Physica Polonica A

1998

vol. 94

issue 5-6

761-771

Modification of the spontaneous emission of dye molecules embedded in artificial opals exhibiting stop bands in the visible range is observed. Molecules embedded in artificial opals show dips in spontaneous emission spectra and modified fluorescence decay kinetics. Results are interpreted in terms of redistribution of the photon density of states. Effects of the multiple reabsorption and reemission of fluorescence photons and interaction of dye molecules with the silica surface are discussed.

Light-Induced Modification of 3D Photonic Band Structure Detected by Means of Photoreflection

64%

Kapitonov A., Kachan S., Ponyavina A., Gaponenko S., Bogomolov V., Prokofiev A., Sitarek P., Misiewicz J.

Acta Physica Polonica A

1999

vol. 95

issue 3

335-342

Porous synthetic opal possessing a three-dimensional photonic band structure of semimetallic type was impregnated with polycrystalline CdS. The photonic stop band in (111) direction was examined by means of photoreflection technique. Under cw laser excitation of semiconductor inclusions the reflectance of the system changes indicating a modification of photonic band structure. A possible mechanism is discussed. Numerical simulations within the framework of quasicrystalline approximation are given.

Refine search results

2 Acta Physica Polonica A

1 1999

1 1998

2 Bogomolov V.

2 Gaponenko S.

1 Kachan S.

1 Kalosha I.

1 Kapitonov A.

1 Misiewicz J.

1 Petrov E.

1 Ponyavina A.

1 Prokofiev A.

1 Sitarek P.

Search results

Modification of the Spontaneous Emission of Dye Molecules in Photonic Crystals

Light-Induced Modification of 3D Photonic Band Structure Detected by Means of Photoreflection