Apparatus for generating coherent infrared energy of selected wavelength
- Danville, CA
A tunable source (11) of coherent infrared energy includes a heat pipe (12) having an intermediate region (24) at which cesium (22) is heated to vaporizing temperature and end regions (27, 28) at which the vapor is condensed and returned to the intermediate region (24) for reheating and recirculation. Optical pumping light (43) is directed along the axis of the heat pipe (12) through a first end window (17) to stimulate emission of coherent infrared energy which is transmitted out through an opposite end window (18). A porous walled tubulation (44) extends along the axis of the heat pipe (12) and defines a region (46) in which cesium vapor is further heated to a temperature sufficient to dissociate cesium dimers which would decrease efficiency by absorbing pump light (43). Efficient generation of any desired infrared wavelength is realized by varying the wavelength of the pump light (43).
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- DOE Contract Number:
- W-7405-ENG-48
- Assignee:
- United States of America as represented by Department of Energy (Washington, DC)
- Patent Number(s):
- US 4504953
- OSTI ID:
- 865372
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
generating
coherent
infrared
energy
selected
wavelength
tunable
source
11
heat
pipe
12
intermediate
region
24
cesium
22
heated
vaporizing
temperature
regions
27
28
vapor
condensed
returned
reheating
recirculation
optical
pumping
light
43
directed
axis
window
17
stimulate
emission
transmitted
opposite
18
porous
walled
tubulation
44
extends
defines
46
sufficient
dissociate
dimers
decrease
efficiency
absorbing
pump
efficient
generation
desired
realized
varying
cesium vapor
optical pump
infrared energy
pump light
selected wavelength
optical pumping
heat pipe
temperature sufficient
tunable source
porous wall
coherent infrared
selected wave
generating coherent
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