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Full-Text Articles in Physical Sciences and Mathematics
Investigating The Potential Applications Of A Raman Tweezer System, John Wray
Investigating The Potential Applications Of A Raman Tweezer System, John Wray
Theses and Dissertations
This thesis describes the construction of an Optical Tweezer apparatus to be used in conjunction with a confocal Raman spectrometer. The tweezer utilizes an infrared (λ=1064 nm) laser directed into an inverted microscope with NA=1.4 oil immersion 100x objective lens that strongly focuses the laser light into a sample to function as a single-beam gradient force trap. The long term goal of this research program is to develop a single molecule Raman tweezers apparatus that allows one to control the position of a Raman nanoplasmonic amplifier. This thesis describes the construction of the Raman tweezer apparatus along with several Raman …
An Effective Field Theory Calculation Of N(P, D)Γ Cross-Section For Big Bang Nucleo-Synthesis, Rasha Adnan Kamand
An Effective Field Theory Calculation Of N(P, D)Γ Cross-Section For Big Bang Nucleo-Synthesis, Rasha Adnan Kamand
Theses and Dissertations
Studying the nuclear reaction n(p,d)γ and calculating its cross-section is not only a matter of interest from theoretical particle physics point of view but also from the viewpoint of cosmology. We now know that the universe is made up of only 5% baryonic matter. So, computing the density of baryons is of particular importance to physicists in general and cosmologists in particular. Deuterium production during Big Bang Nucleo-synthesis (BBN) is very sensitive to the density of baryons, thus baryon density can be inferred from the abundance of deuterium. In order to calculate deuterium abundance one needs to use the cross-section …