Investigation of picosecond relaxation processes in cresyl violet
โ Scribed by Junye Liu; Shihua Huang; Weiping Qin; Jiaqi Yu
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 366 KB
- Volume
- 91
- Category
- Article
- ISSN
- 0030-4018
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๐ SIMILAR VOLUMES
Three exponentials are needed to fit the decrease in scattered light intensity with increasing delay time between pump and probe pulses. The decay time of the fastest component varies between 270 and 120 fs if the grating fringe spacing is reduced from 15.5 to 7.8 ,um at constant dye concentration (
We report a relaxation study of elementary excitations in heavily underdoped Bi 2 Sr 2 CaCu 2 O 8+d (Bi2212) using picosecond Raman Spectroscopy. In B 1g symmetry, the two-magnon peak shows a super-linear power dependence which is ascribed to excess magnon population. In contrast, the broad feature