Remote detection of Raman scattering by use of a holographic optical element as a dispersive telescope.
We describe the retrieval of nighttime lidar profiles by use of a large holographic optical element to simultaneously collect and spectrally disperse Raman-shifted return signals. Results obtained with a 20-Hz, 6-mJ/pulse , frequency-tripled Nd:YAG source demonstrate profiles for atmospheric nitrogen with a range greater than 1 km for a time average of 26 s.
Berkoff
T A
TA
Whiteman
D N
DN
Rallison
R D
RD
Schwemmer
G K
GK
Ramos-Izquierdo
L
L
Plotkin
H
H