TY - JOUR
T1 - Proton polarization in photo-excited aromatic molecule at room temperature enhanced by intense optical source and temperature control
AU - Sakaguchi, S.
AU - Uesaka, T.
AU - Kawahara, T.
AU - Ogawa, T.
AU - Tang, L.
AU - Teranishi, T.
AU - Urata, Y.
AU - Wada, S.
AU - Wakui, T.
N1 - Funding Information:
This work was supported by JSPS Grant-in-Aid for Exploratory Research Grant No. 23654141 and by RIKEN President’s discretionary fund.
PY - 2013/12/15
Y1 - 2013/12/15
N2 - Proton polarization at room temperature, produced in a p-terphenyl crystal by using electron population difference in a photo-excited triplet state of pentacene, was enhanced by utilizing an intense laser with an average power of 1.5 W. It was shown that keeping the sample temperature below 300 K is critically important to prevent the rise of the spin-lattice relaxation rate caused by the laser heating. It is also reported that the magnitude of proton polarization strongly depends on the time structure of the laser pulse such as its width and the time interval between them.
AB - Proton polarization at room temperature, produced in a p-terphenyl crystal by using electron population difference in a photo-excited triplet state of pentacene, was enhanced by utilizing an intense laser with an average power of 1.5 W. It was shown that keeping the sample temperature below 300 K is critically important to prevent the rise of the spin-lattice relaxation rate caused by the laser heating. It is also reported that the magnitude of proton polarization strongly depends on the time structure of the laser pulse such as its width and the time interval between them.
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U2 - 10.1016/j.nimb.2013.07.067
DO - 10.1016/j.nimb.2013.07.067
M3 - Article
AN - SCOPUS:84890101897
SN - 0168-583X
VL - 317
SP - 679
EP - 684
JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
IS - PART B
ER -