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doctoral thesis
Utjecaj atomskih i molekularnih plinova na laserski proizvedene plazme
Zagreb: University of Zagreb, Faculty of Science, 2013. urn:nbn:hr:217:025132
Bišćan, Marijan
University of Zagreb
Faculty of Science
Department of Physics

Institutional repository: Repository of the Faculty of Science

Cite this document

Bišćan, M. (2013). Utjecaj atomskih i molekularnih plinova na laserski proizvedene plazme (Doctoral thesis). Zagreb: University of Zagreb, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:025132

Bišćan, Marijan. "Utjecaj atomskih i molekularnih plinova na laserski proizvedene plazme." Doctoral thesis, University of Zagreb, Faculty of Science, 2013. https://urn.nsk.hr/urn:nbn:hr:217:025132

Bišćan, Marijan. "Utjecaj atomskih i molekularnih plinova na laserski proizvedene plazme." Doctoral thesis, University of Zagreb, Faculty of Science, 2013. https://urn.nsk.hr/urn:nbn:hr:217:025132

Bišćan, M. (2013). 'Utjecaj atomskih i molekularnih plinova na laserski proizvedene plazme', Doctoral thesis, University of Zagreb, Faculty of Science, accessed 11 January 2025, https://urn.nsk.hr/urn:nbn:hr:217:025132

Bišćan M. Utjecaj atomskih i molekularnih plinova na laserski proizvedene plazme [Doctoral thesis]. Zagreb: University of Zagreb, Faculty of Science; 2013 [cited 2025 January 11] Available at: https://urn.nsk.hr/urn:nbn:hr:217:025132

M. Bišćan, "Utjecaj atomskih i molekularnih plinova na laserski proizvedene plazme", Doctoral thesis, University of Zagreb, Faculty of Science, Zagreb, 2013. Available at: https://urn.nsk.hr/urn:nbn:hr:217:025132

Metadata
TitleUtjecaj atomskih i molekularnih plinova na laserski proizvedene plazme
Title (english)Influence of atomic and molecular gases on laser produced plasmas
AuthorMarijan Bišćan
MentorSlobodan Milošević (mentor)
Committee memberDamir Veža (predsjednik povjerenstva)
Committee memberSlobodan Milošević (član povjerenstva)
Committee memberRobert Beuc (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Science
(Department of Physics)
Zagreb
Defense date and country2013-12-19, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Universal decimal classification
(UDC)		53 - Physics
Abstract
Disertacija se bavi laserski proizvedenim plazmama te njihovom karakterizacijom posredstvom optičke emisijske i apsorpcijske spektroskopije. Ove plazme, prisutne u različitim područjima tehničkih i prirodnih znanosti, predstavljaju važan objekt istraživanja zbog mnogobrojnih primjena te neriješenih problema. Istraživanja opisana u ovoj disertaciji usmjerena su na nekoliko čimbenika koji utječu na nastanak plazme i procese koji se u njoj odvijaju. Proučavan je utjecaj vrste i tlaka pozadinskog plina, a koji utječu na kemiju i dinamiku širenja plazme, te energije lasera i sastava mete koji zajedno definiraju raspodjelu temperature unutar mete i njeno isparavanje. Osim eksperimentalnih mjerenja, radi potpunije analize načinjena je usporedba s teorijskim modelima. Dobiveni podaci mogu se upotrijebiti u području laserske depozicije te kemijske analize uzoraka.
Abstract (english)
This dissertation deals with laser produced plasmas and their characterization by means of optical emission and absorption spectroscopy. These plasmas, today present in different areas of engineering and natural sciences, are interesting for the research due to their numerous applications as well as many open questions about their properties. Here, the research is focused towards the influence of several factors on the production of plasma. It was found that argon gas leads to stronger optical emission while the helium gas leads to more uniform plasma composition over larger pressure range together with lower ionization degree. Moreover, from absorption line shapes it can be concluded that surrounding excited gas motion is thermal, while motion of ablated atoms has preferential direction. Comparing different ablation targets, aluminium was found to give the highest yield of metastable helium. By comparing measured and simulated line shapes it was found that plasma expansion can be simulated using a simple model which takes into account only a few simple parameters. The ratio of forward and backward moving particles was measured to be ≈ 10%.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:217:025132
Study programmeTitle: Physics
Study programme type: university
Study level: postgraduate
Academic / professional title: doktor/doktorica znanosti, područje prirodnih znanosti, polje fizika (doktor/doktorica znanosti, područje prirodnih znanosti, polje fizika)
Type of resourceText
Extent113 str.
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2017-08-23 08:49:22