Transverse second-harmonic generation from disordered nonlinear crystals

Abstract

Abstract:We investigate the transverse second-harmonic generation in as grown strontium barium niobate (SBN) crystals with a random structure of anti-parallel ferroelectric domains. We consider both, single and counterpropagating pulse geometries. We investigate polarization properties of the second harmonic signal and discuss applications of this process for short pulses characterization. PACS (2008):42.65.-k

Randomly poled nonlinear crystals as a source of photon pairs

“…Detailed inspection of the formula in Eq. (19) reveals that the larger the value of chirping parameter ζ ′ the broader the phase-matching function F chirp (∆k).…”

“…(19). Characteristics of temporal correlations (correlation time) between the signal and idler fields can also be obtained from the measurement of sum-frequency intensity in a nonlinear medium combining the signal and idler photons and having a sufficiently high value of χ (2)sum nonlinearity.…”

“…Moreover full domain random structures allowing SQPM for transversal second-harmonic generation have been studied in [19].…”

“…The role of SQPM in 1D has already been addressed for the process of second-harmonic generation [13][14][15][16][17] and the process of difference-frequency generation [18]. Moreover full domain random structures allowing SQPM for transversal second-harmonic generation have been studied in [19].…”

Nanocolumnar Preferentially Oriented PSZT Thin Films Deposited on Thermally Grown Silicon Dioxide

“…There is potential for harnessing the nonlinear properties of ferroelectric thin films for applications in photonics and integration with left-handed materials (metamaterials), as has been demonstrated for bulk ferroelectric crystals [ 1 , 2 ]. These applications demand that ferroelectric thin films are deposited on dielectric and optically transparent material.…”