Abstract-Long bases standoff THz spectrometer: State-of-the-art and prospective

Z.-M. Huang,  J.-G. Huang,   W. Zhou,  N.-J. Yao,  Y.-Q. Gao,   J. Ge,   Yu.M. Andreev ,  A. Kokh,   G.V. Lanskii,  V.A. Svetlichnyi,

http://ieeexplore.ieee.org/document/8067110/

Long bases RT THz standoff spectrometer is designed. GaSe91S0.09:Al(0.03 at.%) DFG of near IR lasers was seeded by THz emission from electronic system. THz generation efficiency was improved by the factor of ≥10 at principally reduced emission bandwidth, and pulse magnitude variation decreased for at least of 4-5 times.