| 11. |
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| 12. |
- Ankerst, J, et al.
(författare)
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Laser-induced Fluorescence Studies of Hematoporphyrin Derivative (hpd) In Normal and Tumor-tissue of Rat
- 1984
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Ingår i: Applied Spectroscopy. - : SAGE Publications. - 1943-3530 .- 0003-7028. ; 38:6, s. 890-896
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Tidskriftsartikel (refereegranskat)abstract
- Fluorescence studies of hematoporphyrin derivative (HPD) in normal and tumor tissue of rat were performed with nitrogen laser excitation and optical multi-channel detection. Fifteen types of tissue including inoculated tumor were investigated for rats at different delays after HPD injection. Optimum contrast functions and other criteria for discriminating tumor tissue from normal tissue are discussed. The results should have implications for practical human HPD endoscopy.
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| 13. |
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| 14. |
- Belfrage, Christina, et al.
(författare)
-
Doppler-Free Laser Spectroscopy Measurements on a Ne Discharge for Determination of 22Ne-20Ne Isotope Shifts
- 1983
-
Ingår i: Physica Scripta. - : IOP Publishing. - 0031-8949 .- 1402-4896. ; 27:5, s. 357-370
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Tidskriftsartikel (refereegranskat)abstract
- We have used Doppler-free polarization spectroscopy, intermodulated fluorescence and intermodulated optogalvanic spectroscopy for measuring isotope shifts in 6 Ne lines connecting the 2p53s and 2p53p configurations. The measurements were performed on two different hollow cathodes. For the 5852, 5882, 5945, 5976, 6143 and 6164 A lines the 22Ne-20Ne isotope shift was found to be 2300(15), 1740(2), 1717(3), 1728(5), 1669(4) and 1663(5) MHz, respectively. These results are in fair agreement with previous optical spectroscopy data.
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| 15. |
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| 16. |
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| 17. |
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| 18. |
- Edner, H, et al.
(författare)
-
Gas-correlation lidar
- 1984
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Ingår i: Optics Letters. - 0146-9592. ; 9:11, s. 493-495
-
Tidskriftsartikel (refereegranskat)abstract
- Basic principles for the extension of gas-correlation techniques to the lidar situation are discussed. Favorable signal-to-noise ratios and relaxed laser requirements characterize the technique. Preliminary experiments on atomic mercury are reported.
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| 19. |
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| 20. |
- Fredriksson, K, et al.
(författare)
-
Mobile lidar system for environmental probing
- 1981
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Ingår i: Applied Optics. - 2155-3165. ; 20:24, s. 4181-4189
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Tidskriftsartikel (refereegranskat)abstract
- A fully mobile remote-sensing system based on the lidar principle is described. With this system, atmospheric probing using Mie scattering, differential absorption, or Raman techniques can be performed yielding information on atmospheric pollutants or general atmospheric parameters. The system incorporates a powerful Nd:YAG laser pumping a dye laser and is equipped with a fixed Newtonian telescope used in conjunction with a flat steering mirror. The lidar signals are electrically recorded using a fast-transient digitizer and are processed by a minicomputer, which also controls the laser, the chosen measuring direction, and the output media. Examples of measurements on atmospheric NO2 and SO2 are given.
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