Optics Seminar
2006/2007 | 2007/2008 | 2008/2009 | 2009/2010 | 2010/2011 | 2011/2012 | 2012/2013 | 2013/2014 | 2014/2015 | 2015/2016 | 2016/2017 | 2017/2018 | 2018/2019 | 2019/2020 | 2020/2021 | 2021/2022 | 2022/2023 | 2023/2024 | 2024/2025 | Seminar YouTube channel
2016-04-04 (Monday)
room 1.02, Pasteura 5 at 12:00 
dr. Akira Ozawa (Max Planck Institute of Quantum Optics, Garching, Germany)Direct frequency comb spectroscopy of trapped ions
Trapped and laser-cooled ions are ideal targets for high precisionspectroscopy. Conventionally high precision spectroscopy has beenperformed by utilizing narrow linewidth continuous wave (cw) lasers.Alternatively, single comb mode of optical frequency comb can alsoexcite the target transition. Such direct frequency comb spectroscopy(DFCS) is a promising method for spectroscopy in ultravioletwavelengths where appropriate cw laser does not exist. In this talk, Idescribe our proof of principle demonstrations of DFCS of trapped Mg+ions in deep-UV region. DFCS can be extended into vacuum ultraviolet(VUV) region by using frequency comb generated via high harmonicgeneration. Our recent progress towards comb spectroscopy of trappedHe+ ions at 60nm will also be presented.
2016-03-31 (Thursday)
anr 1130 budynku CeNT I, Banacha 2c at 09:15
prof. Yaron Silberberg (Weitzmann Institute of Science, Israel)On the shape of the photon
> In many ultrafast optics laboratories we routinely synthesize shaped femtosecond pulses with high precision to serve as the driving field for coherent control experiments. I shall discuss how ideas borrowed from quantum control with classical pulses were extended to nonclassical light sources, and in particular show how one can use pulse shaping tools with single photons.
2016-03-17 (Thursday)
room 1.40, Pasteura 5 at 09:15
dr Patrick Salter (University of Oxford)Adaptive optics for 3D ultrafast laser fabrication
Material processing with ultrashort pulsed lasers is effective for a variety of high precision 3D fabrication tasks. In this talk, I will present advances using adaptive optics – deformable mirrors and liquid crystal spatial light modulators – to bring extra degrees of control to the optical system. Adaptive optic elements offer potential for beam shaping, aberration correction and parallelization leading to improved device fabrication in a range of materials. Applications include photonic circuits in glass and nitrogen vacancy colour centre creation in diamond. Furthermore, I will show that using adaptive optics with ultrashort pulses not only modifies the phase front of the incident light, but can additionally be used to shape the temporal intensity profile of the pulse with spatial resolution.
2016-03-10 (Thursday)
room 1.40, Pasteura 5 at 09:15
dr hab. Rafał Demkowicz-Dobrzański (IFT UW)Fundamental quantum bounds on stability of atomic clocks
2016-03-03 (Thursday)
room 1.40, Pasteura 5 at 09:15
prof. Tommaso Calarco (Uniwersytet w Ulm)Controlled quantum many-body dynamics: nonlinearity, reversibility, complexity
2016-02-25 (Thursday)
room 1.40, Pasteura 5 at 09:15
dr Szymon Charzyński (Katedra Metod Matematycznych Fizyki)Układy podwójne czarnych dziur i promieniowanie grawitacyjne
2016-01-14 (Thursday)
room 1.40, Pasteura 5 at 09:15
prof. dr hab. Czesław Radzewicz (IFD UW)Polski Optyczny Zegar Atomowy
2016-01-07 (Thursday)
room 1.40, Pasteura 5 at 09:15
dr hab. Piotr Wasylczyk (IFD UW)MINIMODS - jak optycy z UW przez dwa lata z firmami (optycznymi) pracowali i co z tego wynikło
2015-12-17 (Thursday)
room 1.40, Pasteura 5 at 09:15
dr hab. Tomasz Sowiński (IF PAN)Testing many-body world with a few ultra-cold fermions
Quantum few-body systems are believed to form some kind of bridgebetween one- and two-body physics, well described with standard methodsof quantum mechanics, and many-body world where collective properties of quantum particles have to be taken into account in the framework ofstatistical mechanics. In nowadays experiments on ultra-cold atoms it ispossible to engineer, to control, and to perform measurements onfew-body systems in many different schemes. This amazing experimentalprogress has inspired theoreticians to reformulate old and to formulatenew questions on the properties of a mesoscopic number of quantumparticles. In my talk I will present some subjective view to the problemof a few interacting fermions.
2015-12-10 (Thursday)
room 1.40, Pasteura 5 at 09:15
mgr Kamila Stec (UMK Toruń)