The research topic of air lasing is of fundamental and practical importance, which has grown
rapidly in the past decade. Air lasing, or a laser‐like emission from air species including …

Air lasing refers to the remote optical pumping of the constituents of ambient air that results
in a directional laserlike emission from the pumped region. Intense current investigations of …

We have studied coherent emission from ambient air and demonstrated efficient generation
of laser-like beams directed both forward and backward with respect to a nanosecond …

We perform a proof-of-principle demonstration of chemically specific standoff gas sensing, in
which a coherent stimulated Raman signal is detected in the direction anticollinear to a two …

We report the observation of forward-propagating UV stimulated emission in atmospheric
nitrogen pumped, at a standoff distance of 2.6 m, by an energetic laser pulse at a …

We present the theoretical model for a single-pass, discharge-type standoff nitrogen laser
initiated by a femtosecond filament in nitrogen gas. The model is based on the numerical …

We present a detailed theoretical study of a recent experiment [AJ Traverso, Proc. Natl.
Acad. Sci. USA 109, 15185 (2012) PNASA6 0027-8424 10.1073/pnas. 1211481109] in …

Spatially Offset Raman Spectroscopy (SORS) has seen considerable interest in recent years
as a tool for noninvasively acquiring Raman spectra from beneath the surface of a sample …

Vibrational motions in electronically excited states can be observed either by time and
frequency resolved infrared absorption or by off resonant stimulated Raman techniques …

A strong ultraviolet pumping laser propagating through the atmosphere could activate the
medium and produce the forward and backward coherent air lasing. In this work, we present …