Near-Field Raman Microscopy for Nanometric Observation
نویسندگان
چکیده
منابع مشابه
Near-field Raman Microscopy Has Its Origins in Two Near-field
The origin of Raman spectroscopy dates back to the early 20th century. Theoretical predictions1 postulated that photons should inelastically scatter from molecules in analogy to the Compton scattering of X-rays. In 1928, Raman and Krishnan2 provided the first experimental evidence for such scattering events. Targeting a solution of chloroform with a beam of spectrally filtered sunlight, they de...
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Birefringence, arising from locally preferred orientation of molecules or functional groups in polymeric and relatedmaterials has been observed in a near-field scanning optical microscope (NSOM) at suboptical spatial resolution. Our observations were successfully correlated to existing structural models of the samples, demonstrating the utility of birefringence observations in NSOM. We present ...
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An average human eye can see details down to 0,07 mm in size. The ability to see smaller details of the matter is correlated with the development of the science and the comprehension of the nature. Today's science needs eyes for the nano-world. Examples are easily found in biology and medical sciences. There is a great need to determine shape, size, chemical composition, molecular structure and...
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We have detected sub-wavelength spot sizes in the near-field of a metal tip, which is illuminated with terahertz (THz) pulses. The THz near-field is detected by using electro-optic detection in a (100) oriented GaP crystal. Contrary to conventional electro-optic detection, which uses (110) oriented detection crystals, (100) crystals only allow the detection of THz light, polarized perpendicular...
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Nanocarbon materials, including sp(2) hybridized two-dimensional graphene and one-dimensional carbon nanotubes, and sp(1) hybridized one-dimensional carbyne, are being considered for the next generation of integrated optoelectronic devices. The strong electron-phonon coupling present in these nanocarbon materials makes Raman spectroscopy an ideal tool to study and characterize the material and ...
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ژورنال
عنوان ژورنال: Seibutsu Butsuri
سال: 2010
ISSN: 0582-4052,1347-4219
DOI: 10.2142/biophys.50.300