Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Sammy W. Henderson"'
Autor:
Charley P. Hale, Sammy W. Henderson
Publikováno v:
Lidar Remote Sensing for Environmental Monitoring 2017.
We are developing a family of fast, widely–tunable cw diode-pumped single frequency solid-state lasers, called Swift. The Swift laser architecture is compatible with operation using many different solid-state laser crystals for operation at various
Publikováno v:
Boundary-Layer Meteorology. 86:233-256
Coherent Doppler lidar measurements of wind statistics in the boundary layer are presented. The effects of the spatial averaging by the lidar pulse are removed using theoretical corrections and computer simulations. This permits unbiased estimates of
Autor:
Sammy W. Henderson, Kei Ota
Publikováno v:
The Review of Laser Engineering. 25:19-24
The current status of coherent laser radar systems in our laboratories, using Thulium and Holmium doped solid-state lasers operating near 2 micron wavelength are reviewed. A 2-gm coherent lidar recently installed at the Japan Defense Agency (JDA) wil
Autor:
Stephen M. Hannon, Sammy W. Henderson
Publikováno v:
The Review of Laser Engineering. 23:124-130
Pulsed solid-state coherent laser radar (lidar) systems are rapidly evolving as useful sensorsfor a variety of ground-based and airborne measurement applications. This paper describessuch measurement applications and sample demonstration measurement
Publikováno v:
Journal of Atmospheric and Oceanic Technology. 11:1517-1528
Measurements of boundary layer winds are presented using a 2-µm coherent Doppler lidar and the optimal performance of the maximum likelihood estimator. The systematic error for single-shot estimates was estimated as 3.6 cm s−1 using measurements f
Autor:
D.L. Bruns, Stephen M. Hannon, E.H. Yuen, James R. Magee, Charley P. Hale, Sammy W. Henderson, Paul Suni
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 31:4-15
The development of a coherent laser radar system using 2- mu m Tm- and Tm, Ho-doped solid-state lasers, which is useful for the remote range-resolved measurement of atmospheric winds, aerosol backscatter, and differential absorption lidar (DIAL) meas
Autor:
Sammy W. Henderson, Michael J. Kavaya, Charley P. Hale, James G. Hawley, Russell Targ, Daniel D. Moerder
Publikováno v:
Applied optics. 32(24)
The coherent launch-site atmospheric wind sounder (CLAWS) is a lidar atmospheric wind sensor designed to measure the winds above space launch facilities to an altitude of 20 km. In our development studies, lidar sensor requirements are defined, a sys
Monte Carlo computer simulations of ground-based and space-based coherent DIAL water vapor profiling
Publikováno v:
Applied optics. 28(5)
Ground-based and space-based coherent DIAL water vapor measurement performance at the 2.1-microm Ho:YAG wavelength is presented using a Monte Carlo computer simulation. The stochastic simulation allowed improved modeling of lidar system, platform, at
Autor:
Edward S. Fry, Sammy W. Henderson
Publikováno v:
Applied optics. 25(18)
A twisted-mode technique is presented for elimination of spatial hole burning is laser gain media. Application to Nd:YAG lasers in considered. (AIP)
Publikováno v:
SPIE Proceedings.
We report an eyesafe diffraction-limited single-frequency 1617 nm Er:YAG laser transmitter for coherent laser radar applications. The transmitter utilizes a master oscillator/power amplifier architecture, enabling the production of high peak power ou