Now showing items 1-3 of 3

    • Experimental study of critical casimir forces on microparticles in critical binary liquid mixtures 

      Tuna, Yazgan (Bilkent University, 2014)
      Long-ranged forces between mesoscopic objects emerge when a fluctuating field is confined. Analogously to the well known quantum-electro-dynamical (QED) Casimir forces, emerging between conducting objects due to the ...
    • Nonadditivity of critical Casimir forces 

      Callegari, Agnese; Paladugu, Sathyanarayana; Tuna, Yazgan; Barth, Lukas; Dietrich, S.; Gambassi, A.; Volpe, Giovanni (OSA, 2017)
      We provide the first experimental evidence of nonadditivity for critical Casimir forces: the force that two colloidal particles exert together on a third one differs from the sum of the forces they exert separately.
    • Optical feedback radiation forces: Intracavity optical trapping with feedback-locked diode lasers 

      Tuna, Yazgan; Sayed, R.; Donato, M.G.; Gucciardi P.G.; Maragò O.M.; Volpe, Giovanni (Optical Society of America, 2012)
      We demonstrate a novel mechanism for optical tweezing, where a trapped particle dynamically alters an external cavity quality factor, reduceing the average intensity and photodamage, even employing low-numerical aperture ...