In 2003, we reported the first-ever development of a spectral imaging system for illicit drugs
detection using a terahertz (THz) wave parametric oscillator (TPO)[K. Kawase et al., Opt …

Current terahertz (THz) spectroscopy techniques only use the coherent light beam for
spectral imaging. In the presence of electromagnetic scattering, however, the scattering …

We present the development and implementation of a novel wavelet shrinkage technique for
the retrieval of obscured characteristic resonant signatures in the scattered terahertz (THz) …

Wavelet transform is an important tool in the computational signal processing of terahertz
time-domain spectroscopy (THz-TDS) measurements. Despite its prevalence, the effects of …

We describe the application of the discrete wavelet transform (DWT) in extracting the
characteristic absorption signatures of materials from terahertz reflection spectra. We …

Turbid media, made of wavelength-scale inhomogeneous particles, can give rise to many
significant imaging and spectroscopy challenges. The random variation of the refractive …

Terahertz (THz) imaging is a widely used technique in the study and detection of many
chemicals and biomolecules in polycrystalline form because the spectral absorption …

Terahertz time-domain spectroscopy (THz-TDS) is an attractive technique that is capable of
non-destructive penetrating and probing pharmaceutical tablets conveniently. It can provide …

Terahertz (THz) time-domain spectroscopy is considered as an attractive tool for the analysis
of chemical composition. The traditional methods for identification and quantitative analysis …

Applications of terahertz spectroscopy methods to granulated solids are substantially
constrained by the effects of scattering of the incident terahertz waves by spatial …