Time dependent theory for random lasers

Physical Review Letters

Volumn 85, Issue 1, 2000, Pages 70-73

  Jiang, Xunya ^a   Soukoulis, C M ^a  

^a IOWA STATE UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

DIELECTRIC MATERIALS; ELECTRIC FIELDS; ELECTROMAGNETIC WAVE PROPAGATION; ELECTRONS; FINITE DIFFERENCE METHOD; FOURIER TRANSFORMS; LASER MODES; MATHEMATICAL MODELS; MAXWELL EQUATIONS; OPTICAL PUMPING; PERMITTIVITY; TIME DOMAIN ANALYSIS;

FIELD PATTERN; RANDOM LASERS; RATE EQUATIONS OF ELECTRONIC POPULATION; TIME DEPENDENT THEORY;

LASERS;

EID: 0034225724     PISSN: 00319007     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevLett.85.70     Document Type: Article

References (19)

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18. Such as the coumarine 102 or uranin with meth as solvent. Our results are of general validity and are not sensitive to the lasing dyes used.
19. The structure of our ID random medium is an alternate of layers of random thickness representing the gain medium and dielectric layers of constant thickness representing the scatterers. Theoretically, every discrete grid point of the layers representing the gain medium, is a source that can generate spontaneous emission. Because this is very time consuming, we selected to use a finite number (20 to 50) of sources. To simulate real spontaneous emission, every source needs a proper vibration amplitude and a Lorentzian frequency distribution. We have checked that the spatial distribution of the sources does not influence the calculation results.