Open AccessIDENTIFICATION OF MICROSTRUCTURED MATERIALS BY PHASE AND GROUP VELOCITIES
Author(s) -
Jaan Janno,
Jüri Engelbrecht
Publication year - 2009
Publication title -
mathematical modelling and analysis/mathematical modeling and analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.491
H-Index - 25
eISSN - 1648-3510
pISSN - 1392-6292
DOI - 10.3846/1392-6292.2009.14.57-68
Subject(s) - dispersion (optics) , group (periodic table) , phase (matter) , inverse , dispersion relation , materials science , phase difference , optics , mechanics , mathematics , physics , geometry , quantum mechanics
An inverse problem to determine parameters of microstructured solids by means of group and phase velocities of wave packets is studied. It is proved that in the case of normal dispersion the physical solution is unique and in the case of anomalous dispersion two physical solutions occur. Numerical tests are presented.