Dissertation Process. Henrik Kettunen Aalto ELEC Department of Radio Science and Engineering

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1 Henrik Kettunen Aalto ELEC Department of Radio Science and Engineering GETA Boat Seminar Tallink Silja Serenade January 11 13, 2012

2 Contents Earning the degree Dissertation procedure My thesis My defence Warning! This presentation is mostly based on my own recollection and the guidelines of Aalto ELEC. Check the details from your own university! 2 / 17

3 Earning a doctoral degree Government Decree on University Degrees Section 22, (1) and (3): To earn a degree of Doctor of Science, the student must: 1. complete the required postgraduate studies, 2. demonstrate independent and critical thinking in relation to their field of research, 3. write a doctoral dissertation and defend it in public. An approved doctoral dissertation may also be a monograph or a number of scientific publications or manuscripts vetted for publication deemed sufficient by the university, which deal with the same set of problems and a paper summarising the findings or some other work which meets corresponding scientific criteria. Publications may also include co-authored publications if the author s independent contribution to them can be demonstrated. 3 / 17

4 The dissertation procedure in short 1. Collect the credit points 2. Do the research 3. Publish the results 4. Write the thesis manuscript (a monograph or a summary of the articles) 5. Apply for permission to publish (The appoinment of preliminary examiners) 6. Reply the examiners comments and make the required revisions 7. Apply for the opponent 8. Print the book 9. Defend your thesis in public examination 10. Apply for the evaluation of the thesis and the doctoral certificate 11. Graduate 4 / 17

5 The dissertation procedure in short Check the details from your own university! In Aalto ELEC all applications go through the Doctoral Programme Committee Information for Aalto ELEC doctoral students: 5 / 17

6 Preliminary examination When your supervisor is happy with your manuscript, it can be sent to pre-examination. (Before that, a language check is recommended.) The supervisor is responsible for finding suitable preliminary examiners with expertise on the topic of the dissertation; they must actively publish in the field of the dissertation. They cannot work in a close relationship with the doctoral dissertation writer, supervisor or instructor to avoid partiality concerns (as regards partiality, the rules pertinent to opponents apply). The examiners have 8 weeks to give their statement (In my case, due to the summer holidays, the time was extended to 10(?) weeks) 6 / 17

7 My thesis Complex Electromagnetic Responses from Simple Geometries Supervisor Department of Radio Science and Engineering Prof. Ari Sihvola Instructor Dr. Henrik Wallén How to solve the polarizability of a hemisphere? What are surface plasmons, or electrostatic resonances? Can a composite slab be modeled as an effectively homogeneous medium? How are its effective material parameters then retrieved, and what are the limitations of this homogenization procedure? We find out that even simple geometries can sometimes behave in a complex way. Pre-examiners Prof. Christian Brosseau, Brest, France Prof. Daniel Sjöberg, Lund, Sweden Opponent Prof. Andrea Alù, Austin, Texas, USA 9HSTFMG*aeddge+ ISBN (pdf) ISBN ISSN-L ISSN (pdf) ISSN Aalto University School of Electrical Engineering Department of Radio Science and Engineering BUSINESS + ECONOMY ART + DESIGN + ARCHITECTURE SCIENCE + TECHNOLOGY CROSSOVER DOCTORAL DISSERTATIONS Aalto-DD 106/2011 Henrik Kettunen Complex electromagnetic responses from simple geometries Aalto University Complex electromagnetic responses from simple geometries Henrik Kettunen DOCTORAL DISSERTATIONS 7 / 17

8 Publications included in my thesis 1. H. Kettunen, H. Wallén and A. Sihvola, Polarizability of a dielectric hemisphere, Journal of Applied Physics, vol. 102, no. 4, , H. Kettunen, H. Wallén and A. Sihvola, Electrostatic resonances of a negative-permittivity hemisphere, Journal of Applied Physics, vol. 103, no. 9, , H. Kettunen, H. Wallén and A. Sihvola, Electrostatic response of a half-disk, Journal of Electrostatics, vol. 67, no. 6, pp , H. Wallén, H. Kettunen and A. Sihvola, Surface modes of negative-parameter interfaces and the importance of rounding sharp corners, Metamaterials, vol. 2, no. 2 3, pp , H. Kettunen, J. Qi, H. Wallén and A. Sihvola, Homogenization of thin dielectric composite slabs: techniques and limitations, Applied Computational Electromagnetics Society Journal, vol. 26, no. 3, pp , J. Qi, H. Kettunen, J. Qi, H. Wallén and A. Sihvola, Quasi-dynamic homogenization of geometrically simple dielectric composites, Applied Computational Electromagnetics Society Journal, vol. 25, no. 12, pp , (Altogether I have contributed in 13 journal papers and 21 conference papers) 8 / 17

9 Printing the book I ordered 60 copies The university took 30 of them 15 of those were distributed in the defence I m left with 6 copies Also an electronic version is available at Your university/department may or may not participate in the printing costs, so be sure to check the price beforehand! 9 / 17

10 The press release Sähkötekniikan korkeakoulu p /Katrina Nykänen Väitöstiedote Muodoltaan yksinkertainen voi olla sähköisesti monimutkainen Väitöskirjan nimi Väitöskirjan sisältö Complex electromagnetic responses from simple geometries Yksinkertaisten geometrioiden synnyttämät monimutkaiset sähkömagneettiset vasteet Jokainen väliaine tai materiaali kätkee sisälleen paljaalle silmälle näkymättömän mikrotason hienorakenteen viime kädessä alkuaineetkin rakentuvat omista atomeistaan. Aineen sisäisten rakenneosien ja ulkoisten sähkö- ja magneettikenttien monimutkaisen vuorovaikutuksen seurauksena määräytyvät aineen havaittavat sähkömagneettiset ominaisuudet, joita usein voidaan kuvata yksinkertaisilla makroskooppisilla parametreilla. Väitöskirjan tavoite on syventää ymmärrystä materiaalien sähkömagneettisesta mallinnuksesta. Tulee siis pystyä määrittämään aineen sisäisten rakenneosasten vaste, joka määräytyy pitkälti näiden pienten rakennuspalikoiden muodosta. Väitöskirjassa mallinnetaan erityisesti puolipallon muotoista kappaletta. Erikoistapauksena tutkitaan tilannetta, jossa kappaleen sähköinen permittiivisyys on negatiivinen ympäristöönsä nähden. Tällöin kappaleen pinnalle voi herätä hyvin voimakkaita kenttämuotoja, ns. pintaplasmoneja. Erityisesti terävien nurkkien havaitaan aiheuttavan hyvin voimakkaita vasteita. Viime aikoina suurta kiinnostusta ovat herättäneet täysin keinotekoiset aineet, ns. metamateriaalit, joille pyritään luomaan ominaisuuksia, joita ei luonnossa sinällään esiinny. Väitöskirja perehtyy keinotekoisten materiaalien luomisen edellytyksiin ns. homogenisointimenetelmien kautta ja etsii rajoituksia aineen rakennuspalikoiden, eli ns. yksikkökoppien, vähimmäismäärälle ja maksimikoolle. Väitöskirjan ala Väittelijä Sähkömagnetiikka Henrik Kettunen, TkL Syntynyt Orimattilassa 1980 Ylioppilaaksi Pirkkalan yhteislukiosta 1999 Väitöksen ajankohta klo 12 Paikka Vastaväittäjä Valvoja Aalto-yliopiston sähkötekniikan korkeakoulu, Sali S5, Otakaari 5L, Espoo professori Andrea Alù, The University of Texas at Austin, USA professori Ari Sihvola, Aalto-yliopiston sähkötekniikan korkeakoulu, radiotieteen ja -tekniikan laitos Väitöskirjan verkko-osoite Väittelijän yhteystiedot Henrik Kettunen, p , Aalto-yliopiston sähkötekniikan korkeakoulu, radiotieteen ja -tekniikan laitos, PL 13000, AALTO Väitöskirja on julkisesti nähtävillä Aalto-yliopiston sähkötekniikan korkeakoulun kirjaston ilmoitustaululla (Otakaari 5 A). 10 / 17

11 The defence Mine took place on December 15, 2011 The public examination is an event where a doctoral student or candidate defends the scientific findings presented in his/her dissertation. In the event, the opponent presents questions, to which the candidate responds. The opponent is usually holds a doctorate or professorship in the field of the dissertation, and the public examination is supervised by the custos, usually the professor who has supervised the thesis work. Don t forget the protocol! Photo: Sami Ilvonen 11 / 17

12 Lectio praecursoria Photo: Henrik Wallén 12 / 17

13 Public examination of the thesis Photo: Sami Ilvonen 13 / 17

14 After the defence Photo: Henrik Wallén 14 / 17

15 Karonkka Dinner / after party Photo: An unidentified waitress using Jiaran Qi s phone 15 / 17

16 Graduation The opponent gives a written statement on the thesis and the defence and a proposal for a grade (Fail / Pass / Pass with distinction) One more meeting of Doctoral Programme Commitee is needed Finally the degree is awarded by the dean In my case, DPC had one more additional meeting right before Christmas, and I graduated on December 19, / 17

17 Thank You! 17 / 17