Application of terahertz spectroscopy to the characterization of biological samples using birefringence silicon grating.
J Biomed Opt
; 17(6): 067006, 2012 Jun.
Article
en En
| MEDLINE
| ID: mdl-22734784
ABSTRACT
We present a device and method for performing vector transmission spectroscopy on biological specimens at terahertz (THz) frequencies. The device consists of artificial dielectric birefringence obtained from silicon microfluidic grating structures. The device can measure the complex dielectric function of a liquid, across a wide THz band of 2 to 5.5 THz, using a Fourier transform infrared spectrometer. Measurement data from a range of liquid specimens, including sucrose, salmon deoxyribonucleic acid (DNA), herring DNA, and bovine serum albumin protein solution in water are presented. The specimen handling is simple, using a microfluidic channel. The transmission through the device is improved significantly and thus the measurement accuracy and bandwidth are increased.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Silicio
/
Birrefringencia
/
Espectroscopía de Terahertz
Tipo de estudio:
Risk_factors_studies
Límite:
Animals
Idioma:
En
Revista:
J Biomed Opt
Asunto de la revista:
ENGENHARIA BIOMEDICA
/
OFTALMOLOGIA
Año:
2012
Tipo del documento:
Article
País de afiliación:
Reino Unido