KRYPTON ION

A large number of nonlasing plasma lines emitted from the discharge plasma tube often interfere in the recorded Raman spectra. Loader (40) listed tables of plasma lines when using the argon ion and argon/krypton ion lasers as Raman sources. 

UV-Vis spectroscopy may also provide valuable information if small molecules are studied. However, the photochemical sensitivity of many sulfur-containing molecules may trigger changes in the composition of the sample during irradiation. For instance, this phenomenon has been observed in Raman spectroscopy using the blue or green hnes of an argon ion laser which sometimes decompose sensitive sulfur samples with formation of Sg [2, 3]. Reliable spectra are obtained with the red hnes of a krypton ion or a He-Ne laser as well as with the infrared photons of a Nd YAG laser. 

The p.c.s. measurements were carried out using a Malvern multibit correlator and spectrometer together with a mode stabilized Coherent Krypton-ion laser. The resulting time correlation functions were analysed using a non-linear least squares procedure on a PDP11 computer. The latex dispersions were first diluted to approximately 0.02% solids after which polymer solution of the required concentration was added. 

Su, R.Z., M. Kost, and J. Kiefer. 1990. The effect of krypton ions on Artemia cysts. Radiation Environ. Biophys. 29 103-107. 

American scientists at Lawrence Berkeley Three atoms may have been discovered when krypton ions were bombarded with lead, though the claim of this new element was retracted when attempts to duplicate failed. 

Laser Raman spectra were obtained with the 647.1 nm line of a krypton ion laser (Lexel, Model 95). The radiation intensity at the sample was 300 mW. The scattered radiation was passed through a double monochromator... 

Fig. 30 Schematic drawing of HOMO and LUMO orbitals for complexes 46, 51, and 52 and their phosphorescence properties, which were obtained by exciting at 415.4 nm using a krypton ion laser...

Table 2-3 Some Plasma Lines from a Krypton-Ion Laser0...

ARGON-ION KRYPTON-ION PUMPED DYES (Spectra-Physics)... 

The macromode spectra described here are acquired with an Instruments SA Jobin Yvon Ramanor HG.2S system. Sample excitation is done with either argon or krypton ion lasers. This scanning spectrometer has a thermoelectrically cooled PMT detector and is fitted with a modified Nachet 400 microscope accessory for Raman microprobe work. The microprobe is capable of providing information from domains as small as 1 // in diameter. 

Krypton ion laser A CW or pulsed laser emitting lines from 337 to 859 nm from singly ionized krypton. Principal emissions are at 530.9, 568.2, 647.1, and 752.5 nm. 

See argon ion, helium-cadmium, chemical, CO2 copper vapor, diode, dye, excimer, free electron, free-running, gas, helium-neon, krypton ion, mode-locked, neodymium, nitrogen, Q-switched, solid state, and ruby laser. 

Use Mathcad or some other symbolic algebra program to solve the Ai secular determinant of Table 41-2 in a manner similar to that shown in Fig. 5 for the Bi determinant. Modify the Mathematica commands shown in Fig. 6 to see the square of the I2 harmonic oscillator and Morse wavefunctions and their overlap product for v" = 2 and v = 0, 5, 10, 15, 20, and 25. Obtain plots of these results and discuss the trends that you see. Repeat the exercise for v = 40 and v" = 0, 1, 2, 3, 4, and 5 and note the dramatic intensity variations for the Morse oscillator. Emission from this state, which can be populated by the 520.8-nm krypton ion laser line, is strong to even v" levels but is very weak to odd v" levels (up to about v" = 30). 

Raman spectrometer with argon- or krypton-ion laser source liquid-sample cell or melting-point capillaries reagent-grade CCI4 safety goggles (such as those available from Glendale Optical Co., Woodbury, NY 11797). 

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