Spatial ballistic echo
β Scribed by S. Takamura
- Book ID
- 103765617
- Publisher
- Elsevier Science
- Year
- 1970
- Tongue
- English
- Weight
- 114 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0375-9601
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We describe spatially localized two-photon excitation in scattering media. Using femtosecond pulses at 770 nm from a Ti : Sapphire laser, we were able to excite fluorophores in capillary tubes under up to 1.5 mm of 0.5% intralipid. Displacement of the laser beam relative to the embedded samples indi
The signals in NMR spin echoes which are refocused by 90 degrees pulses are spatially modulated. The spatial modulation is not normally observed in images or profiles obtained using Hahn or stimulated echoes, but may cause errors if the sample structure varies on the distance scale of the modulation