Femtosecond filamentation induced fluorescence technique for atmospheric sensing<xref ref-type="fn" rid="cpb141408fn1">*</xref>

Femtosecond filamentation induced fluorescence technique for atmospheric sensing*

Yuan Shuai^a),^b),^c), Chin See Leang^c), Zeng He-Ping^a),^b),^†

Fig.#cod#x00A0;3. Fluorescence intensity of OH at 308.9#cod#x00A0;nm versus the filament length. The fluorescence is recorded in backward a and side b directions.