Causality-based method for determining the time origin in terahertz emission spectroscopy.
Opt Express
; 19(13): 12759-65, 2011 Jun 20.
Article
em En
| MEDLINE
| ID: mdl-21716518
ABSTRACT
We propose a method for determining the time origin on the basis of causality in terahertz (THz) emission spectroscopy. The method is formulated in terms of the singly subtractive Kramers-Kronig relation, which is useful for the situation where not only the amplitude spectrum but also partial phase information is available within the measurement frequency range. Numerical analysis of several simulated and observed THz emission data shows that the misplacement of the time origin in THz waveforms can be detected by the method with an accuracy that is an order of magnitude higher than the given temporal resolutions.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Espectroscopia Terahertz
/
Radiação Terahertz
/
Modelos Teóricos
Tipo de estudo:
Etiology_studies
Idioma:
En
Revista:
Opt Express
Assunto da revista:
OFTALMOLOGIA
Ano de publicação:
2011
Tipo de documento:
Article
País de afiliação:
Japão