Table Top Liquid Terahertz Source at the Tata Institute of Fundamental Research, Mumbai (IMAGE)

Tata Institute of Fundamental Research

Table Top Liquid Terahertz Source at the Tata Institute of Fundamental Research, Mumbai

Caption

(a) A high power laser pulse ionizes and creates plasma in a common laboratory liquid like acetone or dichloroethane or even water. The plasma can be seen as a long line along the length of the tube containing the liquid (see inset). This line is called a filament and it radiates, among others, copious terahertz radiation. (b) Integrated terahertz energy obtained from various liquids and air. (c) Power spectrum of terahertz obtained from the filamentation of acetone, ethanol and air.

Credit

Indranuj Dey, G. Ravindra Kumar

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