Abstract
Laser heterodyne spectroscopy (LHS) techniques with semiconductor laser local oscillators (LO) in the 3–30 μm range have the potential to measure radical gas species in the stratosphere. The goal of this experiment is to measure radical gases from Spacelab, including ClO, ClONO2, HO2, H2O2, N2O5, and HOCl in solar occulation with vertical resolution ≦2km and vertical range from 10 to 70 km. Sensitivity analyses have been performed on ClO and O3 to determine design criteria for the LHS instrument. Results show that O3 and ClO vertical profiles can be measured with an accuracy ≧95% and ≧80%, respectively, over the total profile. These accuracies require the LO to maintain the following characteristics: frequency stability (Δf w≦20 MHz), single-mode power (P LO≧500 μW), and minimum frequency drift (≦5 MHz). Laboratory heterodyne measurements performed with semiconductor lasers generated the same shot-noise photocurrent as CO2 lasers, for comparable single-mode power. “Excess-noise” regions were identified, but could be wavelength controlled by fine control of operating temperature and injection current. Doppler-shift effects and limited solar occultation measurement times due to Spacelab orbits should pose minimum mission constraints on the experiment.
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References
H.S.Johnston: Science173, 517–522 (1971)
P.J.Crutzen: Ambio1, 41–51 (1972)
M.J.Molina, F.S.Rowland: Nature249, 810–815 (1974)
S.C.Wofsy, M.B.McElroy, Y.L.Yung: Geophys. Res. Lett.2, 215–218 (1975)
M.B.McElroy, J.W.Elkins, S.C.Wofsy, Y.L.Yung: Rev. Geophys. Space Phys.14, 143–150 (1976)
M.B.McElroy, S.C.Wofsy, Y.L.Yung: Philos. Trans. R. Soc. London (Ser. B)277, 159–181 (1977)
S.C.Wofsy: J. Geophys. Res.83, Cl. 364–378 (1978)
J.M.Russell III, J.Gille, L.Gordley, E.Remsberg: The Limb Infrared Monitor of the Stratosphere (LIMS) Experiment: H2O, NO2, and HNO3 Results.Proc.IAMAP Symp., XVII Gen. Asmb., IUGG (Dec. 2–15, 1979) Canberra, Australia
JPL Publication 78-54, Upper Atmospheric Research Satellite Program, Final Report of the Science Working Group, Jet Propulsion Laboratory, Pasadena, CA (June 15, 1974)
C.B.Farmer: Can. J. Chem.52, 1544–1559 (1974)
J.M.Russell III, J.H.Park, S.R.Drayson: Appl. Opt.16, 607–612 (1977)
T.G.Blaney: Space Sci. Rev.17, 691–702 (1975)
R.T.Menzies: Geophys. Res. Lett.6, 151–154 (1979)
R.T.Menzies: InLaser Monitoring of the Atmosphere, by E.D.Hinkley, Topics App. Phys.14 (Springer, Berlin, Heidelberg, New York 1976) Chap. 7
B.J.Peyton, A.J.Dinardo, S.C.Cohen, J.H.McElroy, R.J.Coates: IEEE QE-11, 569–574 (1975)
M.M.Abbas, T.Kostiuk, M.J.Mumma, D.Buhl, V.G.Kunde, L.W.Brown: Geophys. Res. Lett.5, 317–320 (1978)
R.T.Menzies, R.K.Seals: Science197, 1275–1277 (1977)
J.S.Levine, T.R.Augustsson, J.M.Hoell: The Vertical Distribution of Tropospheric Ammonia, Geophys, Res. Lett.7, 1980 (in press)
E.D.Hinkley: Opto-Electronics4, 69–86 (1972)
M.A.Frerking, D.J.Muehlner: Appl. Opt.16, 526–528 (1977)
C.N.Harward, J.M.Hoell: “Atmospheric Solar Absorption Measurements in the 11-Micron Region Using a Diode Laser Heterodyne Radiometer”, presented at the Heterodyne Systems and Technology Conference, Williamsburg. VA (March 25–27, 1980)
J.M.Russell III, S.R.Drayson: J. Atmos. Sci.29, 376–390 (1972)
R.Boughner, J.C.Larsen, M.Natarajan: “The Influence of NO and ClO Variations at Twilight on the Interpretation of Solar Occultation Measurements”, Geophys. Res. Lett.7, 231–234 (1980)
D.L.Spears: “Heterodyne Sensitivity Evaluation of GHz Bandwidth 10.6 μm Photodiodes”, Proceedings of the IRIS Detector Specialty Group Meeting, U.S. Air Force Academy, Col. (March 1977)
R.A.McClatchey, W.S.Benedict, S.A.Clough, B.E.Burch, R.F.Calfee, K.Fox, L.S.Rothman, J.S.Garing: Environ. Res. Paper434, 1973, AFCRL-TR-73-0096
F.Allario, C.H.Bair, J.F.Butler: IEEE J. QE-11, 205–209 (1975)
P.Brockman, C.H.Bair, F.Allario: Appl. Opt.17, 91–100 (1978)
R.S.Rogowski, C.H.Bair, W.R.Wade, J.M.Hoell, G.E.Copeland: Appl. Opt.17, 1301–1302 (1978)
A.E.Siegman: Proc. IEEE54, 1350–1356 (1966)
J.H.Park, J.M.Russell III, S.R.Drayson: Appl. Opt.18, 1950–1954 (1979)
J.M.Russell III, L.L.Gordley: J. Atmos. Sci.36, 2259–2266 (1979)
R.T.Ku, D.L.Spears: Opt. Lett.1, 84–86 (1977)
C.N.Harward, J.M.Hoell: Appl. Opt.18, 3978–3983 (1979)
E.F.Harrison, G.F.Lawrence, S.L.Lamkin: Adv. Astronaut Sci.40, 519–535 (1979)
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Allario, F., Hoell, J.M., Katzberg, S.J. et al. An experiment concept to measure stratospheric trace constituents by laser heterodyne spectroscopy. Appl. Phys. 23, 47–56 (1980). https://doi.org/10.1007/BF00899570
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DOI: https://doi.org/10.1007/BF00899570