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Nonlinear optical studies of potenti...

Li, Haowen.

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Nonlinear optical studies of potential-sensitive dyes.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Nonlinear optical studies of potential-sensitive dyes./
Author:	Li, Haowen.
Description:	151 p.
Notes:	Source: Dissertation Abstracts International, Volume: 67-12, Section: B, page: 6819.
Contained By:	Dissertation Abstracts International67-12B.
Subject:	Biogeochemistry. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3244793

Nonlinear optical studies of potential-sensitive dyes.
Li, Haowen.

Nonlinear optical studies of potential-sensitive dyes. - 151 p.

Source: Dissertation Abstracts International, Volume: 67-12, Section: B, page: 6819.

Thesis (Ph.D.)--Case Western Reserve University, 2007.

Di-8-ANEPPS and other similar potential-sensitive dyes have been extensively used to probe the electrical environment in biological membranes due to changes in its linear and nonlinear optical properties as a function of the local electric field. Ratiometric fluorescence, two-photon excited fluorescence (TPEF) and second harmonic generation (SHG) have all been applied to study biological cell and membrane systems. Mechanism and sensitivity studies for these potential-sensitive dyes have become popular due to the increasing biological needs. In this thesis, fluorescence-free time-correlated single photon counting hyper Rayleigh scattering (TCSPC-HRS) has been used to determine the hyperpolarizability beta. Experiment results are in agreement with quantum chemical calculations. Linear and nonlinear optical studies of di-8-ANEPPS in liquid solution have been carried out. This polarity-dependent solvent effects of linear absorption and hyper-Rayleigh scattering in solution is combined together to analyze the spectral dependence of the sensitivity to the local environment. In this thesis, a two-level model including the spectral shift, changes in transition moment, excited and ground state dipole moment difference, and spectral width is applied to study the sensitivity of di-8-ANEPPS in response to the local electric field (solvent polarity). Good agreement between the model and the measurements has been found. Studies of a di-8-ANEPPS monolayer have been tried and high resolution fluorescence near-field scanning optical microscopic (NSOM) imaging with T-Cells has been performed. Optical resolution beyond diffraction limit has been achieved.Subjects--Topical Terms:

545717
Biogeochemistry.

Nonlinear optical studies of potential-sensitive dyes.
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035 $a (UMI)AAI3244793
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040 $a UMI $c UMI
100 1 $a Li, Haowen. $3 1918225
245 1 0 $a Nonlinear optical studies of potential-sensitive dyes.
300 $a 151 p.
500 $a Source: Dissertation Abstracts International, Volume: 67-12, Section: B, page: 6819.
500 $a Adviser: Kenneth D. Singer.
502 $a Thesis (Ph.D.)--Case Western Reserve University, 2007.
520 $a Di-8-ANEPPS and other similar potential-sensitive dyes have been extensively used to probe the electrical environment in biological membranes due to changes in its linear and nonlinear optical properties as a function of the local electric field. Ratiometric fluorescence, two-photon excited fluorescence (TPEF) and second harmonic generation (SHG) have all been applied to study biological cell and membrane systems. Mechanism and sensitivity studies for these potential-sensitive dyes have become popular due to the increasing biological needs. In this thesis, fluorescence-free time-correlated single photon counting hyper Rayleigh scattering (TCSPC-HRS) has been used to determine the hyperpolarizability beta. Experiment results are in agreement with quantum chemical calculations. Linear and nonlinear optical studies of di-8-ANEPPS in liquid solution have been carried out. This polarity-dependent solvent effects of linear absorption and hyper-Rayleigh scattering in solution is combined together to analyze the spectral dependence of the sensitivity to the local environment. In this thesis, a two-level model including the spectral shift, changes in transition moment, excited and ground state dipole moment difference, and spectral width is applied to study the sensitivity of di-8-ANEPPS in response to the local electric field (solvent polarity). Good agreement between the model and the measurements has been found. Studies of a di-8-ANEPPS monolayer have been tried and high resolution fluorescence near-field scanning optical microscopic (NSOM) imaging with T-Cells has been performed. Optical resolution beyond diffraction limit has been achieved.
590 $a School code: 0042.
650 4 $a Biogeochemistry. $3 545717
650 4 $a Physics, Optics. $3 1018756
650 4 $a Biophysics, General. $3 1019105
650 4 $a Biology, Botany. $3 1017825
690 $a 0309
690 $a 0425
690 $a 0752
690 $a 0786
710 2 0 $a Case Western Reserve University. $3 1017714
773 0 $t Dissertation Abstracts International $g 67-12B.
790 1 0 $a Singer, Kenneth D., $e advisor
790 $a 0042
791 $a Ph.D.
792 $a 2007
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3244793