18 research outputs found
Light induced single molecule frequency shift
Alight induced frequency shift of the 0-0 line was measured in two-photon excitation spectra of single diphenyloctatetraene molecules doped in a crystal matrix. The shifts were proportional to the laser power with a slope of about 600 MHz/W when the laser beam of about 300 mW power was focused to a diameter of 2 mu m. Significantly, the observed line broadenings were an order of magnitude smaller than the shifts. The effect is ascribed mainly to a ''fast'' energy exchange between a local vibration and thermal phonons created by the third harmonic C-H band absorption in the matrix, and partially to an ac Stark shift
Influence of compaction conditions on the structure and mechanical properties of potassium hexatitanate based ceramics
Special features of the dispersion effect of polymer additions in refining iron and cobalt in aqueous solutions under the effect of ultrasound
Modeling of Resonant Hole-Burning Spectra in Excitonically Coupled Systems: The Effects of Energy-Transfer Broadening
Evaluation and Properties of a Model for the Determination of Internal Electric Fields in Proteins from the Stark Effect of Spectral Holes
A study of the local dynamics of polymers using single impurity center spectroscopy (Review)
The power of line-narrowing techniques: Applications to photosynthetic chromoprotein complexes and autofluorescent proteins
Laser spectroscopic techniques at low temperature, such as fluorescence line-narrowing and hole burning, enable an increase of spectral resolution by a factor of 1