Organic mu cavities based on thermally evaporated TeOx-LiF distributed Bragg reflectors

Citation
M. Anni et al., Organic mu cavities based on thermally evaporated TeOx-LiF distributed Bragg reflectors, APPL PHYS L, 79(9), 2001, pp. 1381-1383
Citations number
20
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS LETTERS
ISSN journal
0003-6951 → ACNP
Volume
79
Issue
9
Year of publication
2001
Pages
1381 - 1383
Database
ISI
SICI code
0003-6951(20010827)79:9<1381:OMCBOT>2.0.ZU;2-N
Abstract
We report on the realization of high-quality organic microcavities consisti ng of distributed Bragg reflectors based on lithium fluoride (LiF) and tell urium dioxide (TeOx) deposited by thermal evaporation. The materials are tr ansparent in the range of 350 nm-5 mum and have an evaporation temperature of about 1000 K. The large difference in the refractive index (about 0.9 in the visible and near-infrared range) allows one to obtain reflectivity hig her than 99% over a spectral region about 200 nm wide with a small number o f periods. The mirror deposition technique is suitable for the fabrication of organic quantum microcavities in a single deposition process. Three full y evaporated organic lambda cavities with Phyrrometene 580 as the active ma terial are described. The cavities show a Q value of up to 300, good unifor mity, and reproducibility. (C) 2001 American Institute of Physics.