ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Articles  (13)
  • 82.50  (13)
  • Springer  (13)
  • American Chemical Society (ACS)
  • American Geophysical Union
  • Institute of Physics
  • International Union of Crystallography
  • National Academy of Sciences
  • 2015-2019
  • 2005-2009
  • 1990-1994
  • 1980-1984  (13)
  • 2017
  • 2005
  • 1983  (13)
  • Physics  (13)
  • Geography
  • Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
  • Technology
  • Process Engineering, Biotechnology, Nutrition Technology
Collection
  • Articles  (13)
Source
Keywords
Publisher
  • Springer  (13)
  • American Chemical Society (ACS)
  • American Geophysical Union
  • Institute of Physics
  • International Union of Crystallography
    • +
Years
  • 2015-2019
  • 2005-2009
  • 1990-1994
  • 1980-1984  (13)
Year
Topic
  • 1
    Electronic Resource
    Electronic Resource
    Laser frequency dependent kinetics of cw laser induced reactions (1983)
    Springer
    Applied physics 30 (1983), S. 79-81 
    Details
    ISSN: 1432-0649
    Keywords: 82.50 ; 82.40
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract CF2ClCF2Cl and ethyl acetate have absorption bands of similar width centered at the same frequency. Kinetics of the decompositions of these compounds by a cw CO2 laser have been studied over a range of laser frequencies extending to 25 cm−1 below band center. At constant translational temperature and pressure, the CF2ClCF2Cl rate constant changes by more than 200 with frequency, while the corresponding change for ethyl acetate is at most 3. The effect of laser frequency increases with increasing CF2ClCF2Cl pressure, while the reverse is true in ethyl acetate. Arrhenius plots show activation energies independent of both frequency and pressure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00688480
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Infrared emissions in the CO2-laser-induced photolysis of trifluoromethane-d and mixtures of trifluoromethane-d and -h (1983)
    Springer
    Applied physics 32 (1983), S. 85-92 
    Details
    ISSN: 1432-0649
    Keywords: 82.50
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Time-resolved infrared emission spectra in the wavelength region of 2–5 μm were measured for the CO2-laser-induced photolysis of trifluoromethane-d (CDF3) and its mixtures with trifluoromethane-h (CHF3). The reactant pressures were 0.1–20 Torr at room temperature; some collisions were expected to occur within the laser-pulse duration. The emissions due to vibrationally excited CDF 3 * (C-D stretching mode and probably combination mode) and DF* were observed at the same time for the irradiation of pure CDF3. DF* should be produced in the unimolecular decomposition of CDF 3 * . The dependences of the DF* emission on the experimental condition are explicable on the assumption that the collisional energy transfer followed by the decomposition of CDF3 plays an important role in the present IRMPD, besides its direct multiple-photon decomposition. The mixture of CDF3 and CHF3 showed the emissions due to HF* and CHF 3 * in addition to DF* and CDF 3 * . The ratio between the DF* and HF* emission intensities,I DF/I HF, was examined as a function of pressure. The pressure dependences were similar to those of the selectivity determined previously from the concentration changes of CDF3 and CHF3. The irradiation of mixtures with a long furation pulse (80 ns fwhm with a 2μs) resulted in a marked decrease inI DF/I HF.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00688549
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    The vibrational relaxation time constant for theB v=0 level of XeCl (1983)
    Springer
    Applied physics 32 (1983), S. 193-198 
    Details
    ISSN: 1432-0649
    Keywords: 42.55 ; 33 ; 82.50
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The vibrational relaxation time constant for theB v=0 vibrational level of XeCl* has been investigated by observing the coupling between theB v=1 andB v=0 vibrational levels under saturated lasing conditions. Based on this observation, estimates of the expected extraction efficiency from theB-state have been made.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00688287
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Luminescent coolants for solid-state lasers (1983)
    Springer
    Applied physics 30 (1983), S. 195-202 
    Details
    ISSN: 1432-0649
    Keywords: 78.60 ; 61.8 ; 82.50
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Solutions of 13 fluorescent dyes have been used as energy transfer agents in place of the normal coolant of a Nd-YAG laser. Dye mixtures were used in a few cases where incomplete absorption of flashlamp pump energy was observed. Improvements of over 100% in laser output were observed for some dyes having a long Stokes shift when tested at both a low-input energy and a low-pulse rate. However, the absolute improvement in laser output for these dye solutions was small, and the improvement could be obtained almost as well by merely increasing the pulse rate. Various factors associated with the effectiveness of transfer-dye solutions are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00688406
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Thermochemical instability of transparent media induced by an absorbing inclusion (1983)
    Springer
    Applied physics 31 (1983), S. 85-88 
    Details
    ISSN: 1432-0649
    Keywords: 82.50 ; 42.60
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The initial stage of thermochemical instability induced by an absorbing inclusion within a transparent matrix, which irradiated by a laser beam, is studied. The instability results in a low threshold (formally non-threshold) optical breakdown of the matrix. It is brought about by the additional absorption of the laser light by the products of the chemical reactions in the matrix. The instability is characterized by a certain induction time when the rate of the chemical reactions is almost steady. When the induction is over, their rate rapidly increases. Theoretical estimate of the induction time are offered. The experimental study of the induction time dependence on the laser-beam intensity confirmed the theoretical estimation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00702603
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Laser isotope separation of tritium from deuterium: CO2-laser-induced multiphoton dissociation of C2TF5 in C2DF5 (1983)
    Springer
    Applied physics 32 (1983), S. 33-34 
    Details
    ISSN: 1432-0649
    Keywords: 82.50 ; 82.40 ; 42.60
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Isotope separation of tritium from deuterium in heavy water was attempted by CO2-laser-induced, highly-selective multiphoton dissociation of C2TF5 present in C2DF5. Single-step T/D separation factors exceeding 3000, 1000, and 500 were attained, respectively, for the first time with CO2 laser 10P(34) 931.0 cm−1 at 10, 20, and 30 Torr pentafluoroethane pressures at −78 °C (i.e., equivalent to 15, 30, and 45 Torr at room temperature).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00688772
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Strong dependence of ir multiphoton absorption and dissociation yield of SF6 molecule on intensity (duration) of exciting laser pulse (1983)
    Springer
    Applied physics 30 (1983), S. 207-210 
    Details
    ISSN: 1432-0649
    Keywords: 33 ; 82.50
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The role of played by the intensity of the exciting TEA CO2 laser pulses in the processes of ir multiphoton absorption (MPA) of SF6 molecules cooled toT R≃40 K andT v≃160 K in a pulsed supersonic jet and the dissociation of SF6 in a bulk atT≃300 K under essentially collisionless conditions have been investigated. A strong dependence of MPA and the dissociation yield on pulse intensity were observed. The frequency dependences of the intensity effects were studied.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00688408
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Picosecond streak camera performance in studies of exciples formation dynamics (1983)
    Springer
    Applied physics 30 (1983), S. 153-156 
    Details
    ISSN: 1432-0649
    Keywords: 07.62 ; 82.50
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A crow-bar technique employing a light-activated silicon switch is described to overcome stray electron effects in streak cameras. The technique is applied in picosecond fluorescence studies of intramolecular charge tranfer processes in a compound of the type A-(CH2)3-D (A: anthracene, D: dimethylaniline) where the locally excited state and the exciplex state are shown to be formed sequentially.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00695471
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    CARS spectra of thermally excited SF6 molecules (1983)
    Springer
    Applied physics 31 (1983), S. 89-96 
    Details
    ISSN: 1432-0649
    Keywords: 82.50 ; 33
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract CARS spectra of thev 1 mode of thermally excited SF6 were calculated numerically. The influence of the vibrational quasicontinuum on the CARS spectra has been considered by introducing different types of the homogeneous broadening at different vibrational levels. The appearance of additional lines in the CARS spectrum due to mixing of high-lying vibrational levels by Fermi coupling was considered numerically in the frame of a simple model. A comparison of calculated and experimental spectra has been made.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00702604
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Polarization holography for measuring photoinduced optical anisotropy (1983)
    Springer
    Applied physics 32 (1983), S. 93-95 
    Details
    ISSN: 1432-0649
    Keywords: 07.65 ; 42.40 ; 82.50
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A new experimental method for measuring the optical anisotropy induced at photochemical reactions is proposed. The method is based on polarization holography and is a zero-background high sensitive technique. It is used to measure the molecular dichroism of fluorescein and the birefrigence induced at the additional photopolymerization of PMMA.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00688550
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...