Low-noise, tunable diode laser for ultra-high-resolution spectroscopy

2007 ◽  
Vol 32 (19) ◽  
pp. 2876 ◽  
Author(s):  
K. Döringshoff ◽  
I. Ernsting ◽  
R.-H. Rinkleff ◽  
S. Schiller ◽  
A. Wicht
Keyword(s):  
High Resolution ◽  
Diode Laser ◽  
Low Noise ◽  
Tunable Diode Laser ◽  
High Resolution Spectroscopy

Microcalorimeters for X-Ray Spectroscopy

1988 ◽  
Vol 102 ◽  
pp. 41
Author(s):  
E. Silver ◽  
C. Hailey ◽  
S. Labov ◽  
N. Madden ◽  
D. Landis ◽  
...  
Keyword(s):  
High Resolution ◽  
High Efficiency ◽  
Thermal Response ◽  
Low Noise ◽  
High Resolution Spectroscopy ◽  
Superconducting Transition ◽  
Sapphire Substrates ◽  
Laboratory Plasmas ◽  
Adiabatic Demagnetization ◽  
Theoretical Predictions

The merits of microcalorimetry below 1°K for high resolution spectroscopy has become widely recognized on theoretical grounds. By combining the high efficiency, broadband spectral sensitivity of traditional photoelectric detectors with the high resolution capabilities characteristic of dispersive spectrometers, the microcalorimeter could potentially revolutionize spectroscopic measurements of astrophysical and laboratory plasmas. In actuality, however, the performance of prototype instruments has fallen short of theoretical predictions and practical detectors are still unavailable for use as laboratory and space-based instruments. These issues are currently being addressed by the new collaborative initiative between LLNL, LBL, U.C.I., U.C.B., and U.C.D.. Microcalorimeters of various types are being developed and tested at temperatures of 1.4, 0.3, and 0.1°K. These include monolithic devices made from NTD Germanium and composite configurations using sapphire substrates with temperature sensors fabricated from NTD Germanium, evaporative films of Germanium-Gold alloy, or material with superconducting transition edges. A new approache to low noise pulse counting electronics has been developed that allows the ultimate speed of the device to be determined solely by the detector thermal response and geometry. Our laboratory studies of the thermal and resistive properties of these and other candidate materials should enable us to characterize the pulse shape and subsequently predict the ultimate performance. We are building a compact adiabatic demagnetization refrigerator for conveniently reaching 0.1°K in the laboratory and for use in future satellite-borne missions. A description of this instrument together with results from our most recent experiments will be presented.

HHigh Resolution Spectroscopy Using a Stabilized Diode Laser: the 2υ9 Band of HNO3

1988 ◽  
Vol 43 (5) ◽  
pp. 402-406 ◽  
Author(s):  
Thomas Giesen ◽  
M. Harter ◽  
R. Schieder ◽  
G. Winnewisser ◽  
K.M.T. Yamada
Keyword(s):  
High Resolution ◽  
Spectral Data ◽  
Internal Rotation ◽  
Diode Laser ◽  
Tunable Diode Laser ◽  
Fermi Resonance ◽  
High Resolution Spectrum ◽  
Laser Spectrometer ◽  
Diode Laser Spectrometer ◽  
Stabilization Technique

The high resolution spectrum of the 2 υ9 band of HNO3 has been recorded by a tunable diode laser spectrometer with a newly developed frequency stabilization technique. The spectral data were digitally stored and processed by a dedicated micro-computer in order to improve the sensitivity and the precision of the measurements. In addition to the anomalies due to the Fermi resonance with the υ5 = 1 state, we have observed the line doubling caused by the internal rotation of the OH group.

Improved Spectroscopic Constants for 14C16O2 Obtained from the ν3 Band

1989 ◽  
Vol 44 (7) ◽  
pp. 633-639 ◽  
Author(s):  
S. Dobos ◽  
G . Winnewisser ◽  
F. Kling ◽  
J. Mink
Keyword(s):  
High Resolution ◽  
Diode Laser ◽  
Spectral Region ◽  
Tunable Diode Laser ◽  
Spectroscopic Constants ◽  
Laser Spectrometer ◽  
Diode Laser Spectrometer ◽  
Medium Resolution ◽  
Carrier Free ◽  
Ftir Spectrometer

The absorption spectra of carrier free 14C16O2 in the spectral range of 2290-2150 cm−1 by a medium resolution FTIR spectrometer, and the spectral region of 2258 − 2229 cm−1 with a high resolution tunable diode laser spectrometer have been recorded. Spectroscopic constants were calculated from the 0001 − 0000 and 0111 −0110 transitions.

Frequency tunable monomode diode laser at 670 nm for high resolution spectroscopy

1998 ◽  
Vol 149 (1-3) ◽  
pp. 162-169 ◽  
Author(s):  
V.P. Gerginov ◽  
Y.V. Dancheva ◽  
M.A. Taslakov ◽  
S.S. Cartaleva
Keyword(s):  
High Resolution ◽  
Diode Laser ◽  
High Resolution Spectroscopy ◽  
Frequency Tunable

On the possibility of designing a high-resolution heterodyne spectrometer for near-IR range on the basis of a tunable diode laser

2012 ◽  
Vol 42 (3) ◽  
pp. 244-249 ◽  
Author(s):  
A Yu Klimchuk ◽  
Aleksandr I Nadezhdinskii ◽  
Ya Ya Ponurovskii ◽  
Yu P Shapovalov ◽  
A V Rodin
Keyword(s):  
High Resolution ◽  
Diode Laser ◽  
Tunable Diode Laser ◽  
Near Ir ◽  
Heterodyne Spectrometer ◽  
Near Ir Range

CONTINUOUSLY TUNABLE EXTENDED CAVITY DIODE LASER AT 780 nm FOR HIGH RESOLUTION SPECTROSCOPY

2001 ◽  
Vol 34 (3) ◽  
pp. 395-406 ◽  
Author(s):  
Ch. Andreeva ◽  
Y. Dancheva ◽  
M. Taslakov ◽  
A. Markovski ◽  
P. Zubov ◽  
...  
Keyword(s):  
High Resolution ◽  
Diode Laser ◽  
High Resolution Spectroscopy ◽  
Extended Cavity

High-resolution spectroscopy of combustion gases using a tunable ir diode laser

1977 ◽  
Vol 16 (8) ◽  
pp. 2045 ◽  
Author(s):  
R. K. Hanson ◽  
P. A. Kuntz ◽  
C. H. Kruger
Keyword(s):  
High Resolution ◽  
Diode Laser ◽  
High Resolution Spectroscopy ◽  
Combustion Gases

scholarly journals High Resolution Spectroscopy of CF3Br by Diode Laser in the Frequency Range 1070–1090 cm−1

1988 ◽  
Vol 8 (1) ◽  
pp. 61-78 ◽  
Author(s):  
R. de Bekker ◽  
M. Ebben ◽  
M. Snels ◽  
S. Stolte
Keyword(s):  
High Resolution ◽  
Diode Laser ◽  
Absorption Spectra ◽  
High Resolution Spectroscopy ◽  
Ir Absorption ◽  
Spectral Features ◽  
Frequency Range ◽  
Molecular Constants ◽  
Ir Absorption Spectra ◽  
Better Than

The IR absorption spectra of gaseous CF3Br expanded in a molecular jet have been recorded with a linewidth of about 0.002 cm−1. The rotational K-structure of the ν1 fundamental has been resolved and the molecular constants ΔB and ΔA have been determined with an accuracy better than 5 x 10−6 cm−1. Spectral features belonging to the ν6- and ν3-hotbands have been identified. For CF3B79r (CF3B81r) improved values of the vibrational origins for the fundamental ν1 = 1084.768(2) cm−1 (1084.520(2) cm−1) and for its hotbands ν3+ν1←ν3 = 1081.709(80) cm−1 (1081.065(40) cm−1) and ν6+ν1←ν6 = 1083.533(4) cm-1 (1083.288(4) cm-1) have been determined.

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