Abstract-Effect of an external electric field on the coherent terahertz emission from multiple filaments in air

• Sergey I. Mitryukovskiy, 
• Yi Liu, 
• Bernard Prade, 
• Aurélien Houard, 
• André Mysyrowicz

http://link.springer.com/article/10.1007/s00340-014-5830-1

We describe the terahertz emission from multiple filaments in air in the presence of an external electric field. A strong enhancement of the radiated terahertz energy is obtained by the combined effect of terahertz field interference and presence of a static electric field.