Development of a prototype Time Domain Spectroscopy system for in vivo terahertz thermal imaging.

For the echo-less de- vice, a thin metal plane is inserted between the active GaAs layer and the top surface at a distance d to realize the cavity and reflect the generated THz

(Electro-optic sampling using ZnTe crystals was used for the pulse detection). A metal layer was placed below a 10-µm-thick GaAs layer, realizing a sub- wavelength THz bandpass

5 The reason for this large linewidth is possibly the larger number of periods (226 compared to 90), which leads to inhomogeneous broadening of the gain profile. This has

At the laser shut-off current (136 A/cm 2 ), the field oscillations last almost twice as long as at threshold, indicating a reduction in the spectral width. The gain spectra of

With a similar concept applied to low temperature GaAs to realize an antenna for detection, even greater resolution would be achieved that would be limited only by

We present a new instrument, based on a low frame rate (8 Hz) CCD camera used in a heterodyne optical-mixing configuration, that can create wide-field laser Doppler maps.. As

An implementation of the Kubelka-Munk model combined with Saunderson correction allows measuring six parameters of Caucasian skin: epidermis thickness, melanin volume fraction,

As a conclusion, we demonstrated that diffraction plays a major role in the measurement of terahertz beam waist size using classical circular masking ap- ertures in a TDS setup,