Nuclear magnetic resonance molecular photography

被引:25
作者
Khitrin, AK [1 ]
Ermakov, VL [1 ]
Fung, BM [1 ]
机构
[1] Univ Oklahoma, Dept Chem & Biochem, Norman, OK 73019 USA
关键词
Electronic information storage and processing - Nuclear magnetic resonance molecular photography - Programmable multifrequency irradiation - Two dimensional pattern;
D O I
10.1063/1.1513310
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A procedure is described for storing a two-dimensional (2D) pattern consisting of 32x32=1024 bits in a spin state of a molecular system and then retrieving the stored information as a stack of nuclear magnetic resonance spectra. The system used is a nematic liquid crystal, the protons of which act as spin clusters with strong intramolecular interactions. The technique used is a programmable multifrequency irradiation with low amplitude. When it is applied to the liquid crystal, a large number of coherent long-lived H-1 response signals can be excited, resulting in a spectrum showing many sharp peaks with controllable frequencies and amplitudes. The spectral resolution is enhanced by using a second weak pulse with a 90degrees phase shift, so that the 1024 bits of information can be retrieved as a set of well-resolved pseudo-2D spectra reproducing the input pattern. (C) 2002 American Institute of Physics.
引用
收藏
页码:6903 / 6906
页数:4
相关论文
共 19 条
[1]   SPIN ECHO SERIAL STORAGE MEMORY [J].
ANDERSON, AG ;
GARWIN, RL ;
HAHN, EL ;
HORTON, JW ;
TUCKER, GL ;
WALKER, RM .
JOURNAL OF APPLIED PHYSICS, 1955, 26 (11) :1324-1338
[2]   Logic circuits with carbon nanotube transistors [J].
Bachtold, A ;
Hadley, P ;
Nakanishi, T ;
Dekker, C .
SCIENCE, 2001, 294 (5545) :1317-1320
[3]   Molecular machines [J].
Balzani, V ;
Gómez-López, M ;
Stoddart, JF .
ACCOUNTS OF CHEMICAL RESEARCH, 1998, 31 (07) :405-414
[4]   Introduction of [2]catenanes into Langmuir films and Langmuir-Blodgett multilayers. A possible strategy for molecular information storage materials [J].
Brown, CL ;
Jonas, U ;
Preece, JA ;
Ringsdorf, H ;
Seitz, M ;
Stoddart, JF .
LANGMUIR, 2000, 16 (04) :1924-1930
[5]   Reproducible measurement of single-molecule conductivity [J].
Cui, XD ;
Primak, A ;
Zarate, X ;
Tomfohr, J ;
Sankey, OF ;
Moore, AL ;
Moore, TA ;
Gust, D ;
Harris, G ;
Lindsay, SM .
SCIENCE, 2001, 294 (5542) :571-574
[6]   SPIN-ECHO MEMORY DEVICE [J].
FERNBACH, S ;
PROCTOR, WG .
JOURNAL OF APPLIED PHYSICS, 1955, 26 (02) :170-181
[7]   Design of heteronuclear decoupling sequences for solids [J].
Khitrin, A ;
Fung, BM .
JOURNAL OF CHEMICAL PHYSICS, 2000, 112 (05) :2392-2398
[8]   Method of multifrequency excitation for creating pseudopure states for NMR quantum computing [J].
Khitrin, Anatoly ;
Sun, Hong ;
Fung, B.M. .
Physical Review A - Atomic, Molecular, and Optical Physics, 2001, 63 (02) :020301-020301
[9]   Information storage using a cluster of dipolar-coupled spins [J].
Khitrin, AK ;
Ermakov, VL ;
Fung, BM .
CHEMICAL PHYSICS LETTERS, 2002, 360 (1-2) :161-166
[10]   NMR simulation of an eight-state quantum system [J].
Khitrin, AK ;
Fung, BM .
PHYSICAL REVIEW A, 2001, 64 (03) :4