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master's thesis
Istovremeno hlađenje dvije vrste atoma optičkim frekventnim češljem
Zagreb: University of Zagreb, Faculty of Science, 2020. urn:nbn:hr:217:388389
Puljić, Ivana
University of Zagreb
Faculty of Science
Department of Physics

Institutional repository: Repository of the Faculty of Science

Cite this document

Puljić, I. (2020). Istovremeno hlađenje dvije vrste atoma optičkim frekventnim češljem (Master's thesis). Zagreb: University of Zagreb, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:388389

Puljić, Ivana. "Istovremeno hlađenje dvije vrste atoma optičkim frekventnim češljem." Master's thesis, University of Zagreb, Faculty of Science, 2020. https://urn.nsk.hr/urn:nbn:hr:217:388389

Puljić, Ivana. "Istovremeno hlađenje dvije vrste atoma optičkim frekventnim češljem." Master's thesis, University of Zagreb, Faculty of Science, 2020. https://urn.nsk.hr/urn:nbn:hr:217:388389

Puljić, I. (2020). 'Istovremeno hlađenje dvije vrste atoma optičkim frekventnim češljem', Master's thesis, University of Zagreb, Faculty of Science, accessed 14 May 2024, https://urn.nsk.hr/urn:nbn:hr:217:388389

Puljić I. Istovremeno hlađenje dvije vrste atoma optičkim frekventnim češljem [Master's thesis]. Zagreb: University of Zagreb, Faculty of Science; 2020 [cited 2024 May 14] Available at: https://urn.nsk.hr/urn:nbn:hr:217:388389

I. Puljić, "Istovremeno hlađenje dvije vrste atoma optičkim frekventnim češljem", Master's thesis, University of Zagreb, Faculty of Science, Zagreb, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:217:388389

Metadata
TitleIstovremeno hlađenje dvije vrste atoma optičkim frekventnim češljem
Title (english)Simultaneous cooling of two atomic species using an optical frequency comb
AuthorIvana Puljić
MentorDamir Aumiler (mentor)
Committee memberDamir Aumiler (predsjednik povjerenstva)
Committee memberHrvoje Buljan (član povjerenstva)
Committee memberIvica Smolić (član povjerenstva)
Committee memberTicijana Ban (član povjerenstva)
Committee memberTihomir Vukelja (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Science
(Department of Physics)
Zagreb
Defense date and country2020-07-03, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract
U ovom diplomskom radu proučavano je istovremeno hlađenje dva izotopa rubidija, 85^Rb i 87^Rb, pomoću optičkog frekventnog češlja. U tu svrhu, razvila se magnetooptička stupica za atome 85^Rb te se dobiveni oblak preklopio s oblakom 87^Rb pripremljenim u prije razvijenoj magnetooptičkoj stupici za taj izotop. Ovako pripremljen sustav, predhlađen oblak atoma 85^Rb i 87^Rb, početna je točka za pokazivanje hlađenja frekventnim češljem. Određene su spektralne linije češlja koje u frekvencijama odgovaraju prijelazima korištenim za hlađenje atoma 85Rb i 87Rb te su tehnikom vremena proleta izmjerene temperature oba izotopa istovremeno. Pri tome je dobiveno da oba izotopa prate iste temperaturne trendove, odnosno da je na ovaj način moguće istovremeno hladiti dvije vrste atoma. Također, ispitano je kako vrijeme trajanja međudjelovanja frekventnog češlja sa atomima 85^Rb i 87^Rb utječe na postizanje konačnih temperatura. Zaključeno je da se nakon hlađenja frekventnim češljem u trajanju od nekoliko milisekundi postiže konačna temperatura atoma te da je ona iznosom bliska Dopplerovoj temperaturi.
Abstract (english)
In this thesis, simultaneous cooling of two rubidium isotopes, 85^Rb and 87^Rb, using an optical frequency comb was studied. For that purpose, a magneto-optical trap for 85^Rb atoms was developed. The obtained cloud was overlapped with a 87^Rb cloud which was beforehand developed in a magneto-optical trap for that isotope. A precooled cloud of 85^Rb and 87^Rb atoms prepared in this way serves as a starting point for cooling with a frequency comb. Comb lines which, in terms of frequency, correspond to transitions used for cooling of 85^Rb and 87^Rb atoms, were determined. Temperatures of both isotopes were measured simultaneously using a time of flight method. Obtained temperatures showed same behaviour for both isotopes which led to the conclusion that it is indeed possible to simultaneously cool two atomic species using an optical frequency comb. In addition, temperature dependence of 85^Rb and 87^Rb atoms on the interaction time with the frequency comb was measured. Results showed that temperatures close to the Doppler limit are obtained on a time scale of few milliseconds, and do not change with further increasing the interaction time.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:217:388389
Study programmeTitle: Physics; specializations in: Research
Course: Research
Study programme type: university
Study level: integrated undergraduate and graduate
Academic / professional title: magistar/magistra fizike (magistar/magistra fizike)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2020-08-21 12:57:58