Hexagonal microlasers based on organic dyes in nanoporous crystals
| Autor: | Franco Laeri, Ferdi Schueth, Guido Ihlein, Ingo Braun, Uwe Vietze, Özlem Weiss, Jens U. Noeckel, Dieter Woehrle, Guenter Schulz-Ekloff |
|---|---|
| Rok vydání: | 2001 |
| Předmět: |
Materials science
Physics and Astronomy (miscellaneous) Nanoporous General Engineering General Physics and Astronomy FOS: Physical sciences Nonlinear Sciences - Chaotic Dynamics Molecular sieve Laser law.invention Rhodamines Resonator Template Chemical engineering law Molecule Chaotic Dynamics (nlin.CD) Lasing threshold Physics - Optics Optics (physics.optics) |
| DOI: | 10.48550/arxiv.physics/0101008 |
| Popis: | Molecular sieves, such as nanoporous AlPO_4-5, can host a wide variety of laser active dyes. We embedded pyridine 2 molecules as a representative of a commercially available dye which fits into the channel pores of the host matrix. Many efficient dye molecules, such as rhodamines, do not fit into the pores. But the amount of encapsulated dyes can be increased by modifying the structure of the dyes such that they match the host templates. The resulting microlasers have properties that depend on size and shape of the microresonators, and we discuss a model for microscopic hexagonal ring resonators. In terms of pump needed to reach lasing threshold molecular sieve microlasers are comparable to VCSELs. For dyes which fit into the pores we observed a partial regeneration of photo-induced damage. Comment: 10 pages, 16 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|