Now showing items 1-7 of 7

  • Ferroelectric domain engineering by focused infrared femtosecond pulses 

    Chen, Xin; Karpinski, Pawel; Shvedov, Vladlen; Koynov, Kaloian; Wang, Bingxia; Trull Silvestre, José Francisco; Cojocaru, Crina; Krolikowski, Wieslaw; Sheng, Yan (2015-10-05)
    Article
    Open Access
    We demonstrate infrared femtosecond laser-induced inversion of ferroelectric domains. This process can be realised solely by using tightly focused laser pulses without application of any electric field prior to, in conjunction ...
  • Second harmonic generation in disordered nonlinear crystals : application to ultra-short laser pulse characterization 

    Wang, Bingxia (Universitat Politècnica de Catalunya, 2017-10-10)
    Doctoral thesis
    Open Access
    Covenantee:  Aix-Marseille Université
    The PhD project, entitled "Second harmonic generation in disordered nonlinear crystals: application to ultra-short laser pulse characterization", is devoted to the study of second harmonic generation in nonlinear ferroelectric ...
  • Transverse cross-correlation scheme for pulse shape measurement in random nonlinear crystals 

    Cojocaru, Crina; Wang, Bingxia; Trull Silvestre, José Francisco (Institute of Electrical and Electronics Engineers (IEEE), 2016)
    Conference report
    Restricted access - publisher's policy
    We present a novel single-shot cross-correlation scheme based on the measurement of the transverse second harmonic generation (TSHG) in crystals with randomly distributed nonlinear ferroelectric domains. We implement it ...
  • Transverse single-shot cross-correlation scheme for laser pulse temporal measurement via planar second harmonic generation 

    Wang, Bingxia; Cojocaru, Crina; Krolikowski, Wieslaw; Yan Sheng, Yan Sheng; Trull Silvestre, José Francisco (2016-09-15)
    Article
    Open Access
    We present a novel single-shot cross-correlation technique based on the analysis of the transversally emitted second harmonic generation in crystals with random distribution and size of anti-parallel nonlinear domains. We ...
  • Two-dimensional domain structures in Lithium Niobate via domain inversion with ultrafast light 

    Chen, Xin; Karpinski, Pawel; Shvedov, Vladlen; Wang, Bingxia; Trull Silvestre, José Francisco; Cojocaru, Crina; Boes, A.; Mitchell, A.; Krolikowski, Wieslaw; Sheng, Yan (2016)
    Article
    Open Access
    Periodic inversion of ferroelectric domains is realized in a lithium niobate crystal by focused femtosecond near-infrared laser beam. One and two-dimensional domain patterns are fabricated. Quasi-phase matched frequency ...
  • Ultrashort pulse chirp determination via transverse auto-correlation in SBN crystal 

    Wang, Bingxia; Cojocaru, Crina; Inigo Sola, Inigo Sola; Wieslaw Krolikowski, Wieslaw Krolikowski; Yan Sheng, Yan Sheng; Vilaseca Alavedra, Ramon; Trull Silvestre, José Francisco (2015)
    Conference lecture
    Restricted access - publisher's policy
    We determine the different initial chirp parameters of ultra-short pulses down to 30 fs via single-shot transverse auto-correlation method based on transverse second harmonic generation in SBN crystal with random distribution ...
  • Ultrashort pulse chirp measurement via transverse second-harmonic generation in strontium barium niobate crystal 

    Trull Silvestre, José Francisco; Sola, Ïñigo; Wang, Bingxia; Parra, Albert; Krolikowski, W.; Sheng, Y.; Vilaseca Alavedra, Ramon; Cojocaru, Crina (2015-06-01)
    Article
    Open Access
    Pulse compression in dispersive strontium barium niobate crystal with a random size and distribution of the anti-parallel orientated nonlinear domains is observed via transverse second harmonic generation. The dependence ...