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Over the last two decades, Terahertz (THz) spectroscopy research has been growing quite
fast. The potential of THz Spectroscopy is quite high and has found numerous applications
across several different disciplines of Science, Technology, Arts and Security. Due to the lack of
high power sources and detectors, there is a big gap in applications of this technology. The main challenge lies
in the development of high power THz Source and sensitive THz Detector technology development.
Due to the lack of cheap, compact, easy-to-use, room temperature tabletop high power THz emitting sources and equally sensitive,
convenient to use room temperature detectors, the progress has been stalled. Several novel ideas have been tried by us to enhance
the THz emission efficiency from different materials. The tabletop laser driven sources can be scaled to increase the emitted THz
intensity. Many attempts have been made using different designs to find efficient THz emitters and detectors , but the efficiency of
THz emission has been limited. We have developed several different THz Spectroscopy setups
to investigate Metamaterials, Natural Materials and Biological Samples. These are Pulsed to CW THz as well as pump-probe Spectroscopy
setups. We have also developed a Near Field Scanning THz Microscope (NSTM) to study Metamaterials. We will give an overview of our
THz activities and studies of some Materials. |