國立虎尾科技大學 |

Quantitative Multiphoton Absorption Spectroscopy.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Quantitative Multiphoton Absorption Spectroscopy./
Author:	Mikhaylov, Alexander Evgen'evich.
Description:	1 online resource (176 pages)
Notes:	Source: Dissertation Abstracts International, Volume: 79-08(E), Section: B.
Contained By:	Dissertation Abstracts International79-08B(E).
Subject:	Optics. -
Online resource:	click for full text (PQDT)
ISBN:	9780355655728

Quantitative Multiphoton Absorption Spectroscopy.
Mikhaylov, Alexander Evgen'evich.

Quantitative Multiphoton Absorption Spectroscopy. - 1 online resource (176 pages)

Source: Dissertation Abstracts International, Volume: 79-08(E), Section: B.

Thesis (Ph.D.)--Montana State University, 2018.

Includes bibliographical references

Multiphoton absorption (MPA) is an intriguing photophysical process that has been found useful for diverse areas of science. Low probabilities of MPA processes in molecular systems require to use intense photon fluxes that can be generated by femtosecond laser sources. Performing MPA measurements with sufficient precision requires a detailed characterization of the photon flux values that poses many technical difficulties. However, if the MPA values are determined accurately, then a quantitative analysis of the data obtained can be used to derive information about many important molecular parameters. As an example of MPA spectroscopy we discuss here two-photon absorption (2PA) methods. 2PA spectroscopy is applied to elucidate the structure-property relationships in different types of molecular systems including Pt-based chromophores, pyrrolo-pyrol complexes, organometallic ferrocene compounds, porphyrin oligomers and DNA base fluorescent analogs. Such spectroscopic analysis allows to shed some light on questions of inversion symmetry breaking effects and charge transfer on molecular scales. The measured 2PA spectra are also used to test several approximations for 2PA cross section expressions by comparing the values of molecular parameters derived from the measured 2PA data with other methods and literature data. We employ different experimental methods including two-photon excited fluorescence and nonlinear transmittance to measure 2PA spectra in a broad range of excitation wavelengths. The success achieved with 2PA based methods stimulates interest in three-photon absorption (3PA) measurements. We report on a progress achieved in 3PA measurements using three-photon excited fluorescence. This method is used to measure 3PA spectra of common fluorescent standards including Fluorescein and Rhodamine 6G and other organic dyes in different solvents. Effects of third harmonic generation and solvents absorption are discussed concerning the reliability of the 3PA measurements.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018

Mode of access: World Wide Web

ISBN: 9780355655728Subjects--Topical Terms:

595336
Optics.
Index Terms--Genre/Form:

554714
Electronic books.

Quantitative Multiphoton Absorption Spectroscopy.
LDR:03191ntm a2200325Ki 4500 001 917092
005 20181005115847.5
006 m o u
007 cr mn||||a|a||
008 190606s2018 xx obm 000 0 eng d
020 $a 9780355655728
035 $a (MiAaPQ)AAI10743683
035 $a (MiAaPQ)montana:10585
035 $a AAI10743683
040 $a MiAaPQ $b eng $c MiAaPQ $d NTU
100 1 $a Mikhaylov, Alexander Evgen'evich. $3 1191023
245 1 0 $a Quantitative Multiphoton Absorption Spectroscopy.
264 0 $c 2018
300 $a 1 online resource (176 pages)
336 $a text $b txt $2 rdacontent
337 $a computer $b c $2 rdamedia
338 $a online resource $b cr $2 rdacarrier
500 $a Source: Dissertation Abstracts International, Volume: 79-08(E), Section: B.
500 $a Adviser: Aleksander Rebane.
502 $a Thesis (Ph.D.)--Montana State University, 2018.
504 $a Includes bibliographical references
520 $a Multiphoton absorption (MPA) is an intriguing photophysical process that has been found useful for diverse areas of science. Low probabilities of MPA processes in molecular systems require to use intense photon fluxes that can be generated by femtosecond laser sources. Performing MPA measurements with sufficient precision requires a detailed characterization of the photon flux values that poses many technical difficulties. However, if the MPA values are determined accurately, then a quantitative analysis of the data obtained can be used to derive information about many important molecular parameters. As an example of MPA spectroscopy we discuss here two-photon absorption (2PA) methods. 2PA spectroscopy is applied to elucidate the structure-property relationships in different types of molecular systems including Pt-based chromophores, pyrrolo-pyrol complexes, organometallic ferrocene compounds, porphyrin oligomers and DNA base fluorescent analogs. Such spectroscopic analysis allows to shed some light on questions of inversion symmetry breaking effects and charge transfer on molecular scales. The measured 2PA spectra are also used to test several approximations for 2PA cross section expressions by comparing the values of molecular parameters derived from the measured 2PA data with other methods and literature data. We employ different experimental methods including two-photon excited fluorescence and nonlinear transmittance to measure 2PA spectra in a broad range of excitation wavelengths. The success achieved with 2PA based methods stimulates interest in three-photon absorption (3PA) measurements. We report on a progress achieved in 3PA measurements using three-photon excited fluorescence. This method is used to measure 3PA spectra of common fluorescent standards including Fluorescein and Rhodamine 6G and other organic dyes in different solvents. Effects of third harmonic generation and solvents absorption are discussed concerning the reliability of the 3PA measurements.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2018
538 $a Mode of access: World Wide Web
650 4 $a Optics. $3 595336
655 7 $a Electronic books. $2 local $3 554714
690 $a 0752
710 2 $a ProQuest Information and Learning Co. $3 1178819
710 2 $a Montana State University. $b Physics. $3 1191024
773 0 $t Dissertation Abstracts International $g 79-08B(E).
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10743683 $z click for full text (PQDT)