Časově rozlišená laserová spektroskopie nanomateriálů

This diploma thesis is oriented to study of nonlinear properties of semiconductor nanocrystals using ultrashort femtosecond pulses. There is a detailed description of theory and experimental setup of the z-scan method, which can be used to measure the nonlinear refractive index and the two-photon ab...

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Bibliographic Details
Main Author: Kozák, Martin
Other Authors: Trojánek, František
Format: Dissertation
Language:Czech
Published: 2009
Online Access:http://www.nusl.cz/ntk/nusl-275481
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spelling ndltd-nusl.cz-oai-invenio.nusl.cz-2754812021-03-29T05:12:04Z Časově rozlišená laserová spektroskopie nanomateriálů Time-resolved laser spectroscopy of nanomaterials Kozák, Martin Trojánek, František Šimurda, Miroslav This diploma thesis is oriented to study of nonlinear properties of semiconductor nanocrystals using ultrashort femtosecond pulses. There is a detailed description of theory and experimental setup of the z-scan method, which can be used to measure the nonlinear refractive index and the two-photon absorption coefficient. In theoretical part we describe the influence the quality of laser beam, quality and thickness of the sample on measurements. There are numerical simulations of the measurements influenced by these parameters. This theory is used for processing of the measured dates by a program, which is attached to this thesis on CD. In experimental part we measured nonlinear refractive indeces of diamond nanocrystals fabricated by the PECVD method, silicon and CdS nanocrystals in glass matrices. One part of this thesis deals with the preparation and optimalization of the experimental setup and increasing the signal/noise ratio. 2009 info:eu-repo/semantics/masterThesis http://www.nusl.cz/ntk/nusl-275481 cze info:eu-repo/semantics/restrictedAccess
collection NDLTD
language Czech
format Dissertation
sources NDLTD
description This diploma thesis is oriented to study of nonlinear properties of semiconductor nanocrystals using ultrashort femtosecond pulses. There is a detailed description of theory and experimental setup of the z-scan method, which can be used to measure the nonlinear refractive index and the two-photon absorption coefficient. In theoretical part we describe the influence the quality of laser beam, quality and thickness of the sample on measurements. There are numerical simulations of the measurements influenced by these parameters. This theory is used for processing of the measured dates by a program, which is attached to this thesis on CD. In experimental part we measured nonlinear refractive indeces of diamond nanocrystals fabricated by the PECVD method, silicon and CdS nanocrystals in glass matrices. One part of this thesis deals with the preparation and optimalization of the experimental setup and increasing the signal/noise ratio.
author2 Trojánek, František
author_facet Trojánek, František
Kozák, Martin
author Kozák, Martin
spellingShingle Kozák, Martin
Časově rozlišená laserová spektroskopie nanomateriálů
author_sort Kozák, Martin
title Časově rozlišená laserová spektroskopie nanomateriálů
title_short Časově rozlišená laserová spektroskopie nanomateriálů
title_full Časově rozlišená laserová spektroskopie nanomateriálů
title_fullStr Časově rozlišená laserová spektroskopie nanomateriálů
title_full_unstemmed Časově rozlišená laserová spektroskopie nanomateriálů
title_sort časově rozlišená laserová spektroskopie nanomateriálů
publishDate 2009
url http://www.nusl.cz/ntk/nusl-275481
work_keys_str_mv AT kozakmartin casoverozlisenalaserovaspektroskopienanomaterialu
AT kozakmartin timeresolvedlaserspectroscopyofnanomaterials
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