We demonstrate a simple technique for enhancing harmonic conversion yields by an array of gas interaction zones.
Sep 23 2007
Direct experimental test of quantum non-commutativity by single photon creation and annihilation
We have implemented simple sequences of photon addition and subtraction to/from a light field. By verifying the difference in the final states when using the two operators in reverse order, we provide the first direct test of quantum commutation rules.
Oct 23 2006
Single-photon remote temporal delocalization and violation of a Bell’s type inequality
We have remotely delocalized a single photon onto two distinct and widely separated temporal modes. The tomographic analysis of the two-mode homodyne data has allowed us to prove (under some assumptions) the violation of a form of Bell’s inequality.
Jul 23 2006
Direct interferometric measurement of atomic dipole phases in high-order harmonic generation
We have used an interferometric technique to directly measure the intrinsic nonlinear phase related to the different electronic trajectories involved in high-order harmonic generation in the XUV.
Oct 05 2005
The 2005 Nobel Prize in Physics awarded to Theodor W. Hänsch
Ted Hänsch and Marco Bellini performed one of the key experiments leading to the invention of the femtosecond frequency comb (and, later, to the Nobel prize) in Florence.
In 1997, we demonstrated the coherence in the process of supercontinuum generation that was the starting point to conceive the possibility of generating ultra-broadband self-calibrating optical frequency combs.
Oct 23 2004
First experimental photon addition
First realization of single-photon-added coherent states. We have generated and analyzed novel states of light that continuously change their character from fully quantum to fully classical.
