Self-controlled formation of microlenses by optical breakdown inside wide-band-gap materials

Grojo, D.; Gertsvolf, M.; Jean-Ruel, H.; Lei, S.; Ramunno, L.; Rayner, D. M.; Corkum, P. B.
December 2008
Applied Physics Letters;12/15/2008, Vol. 93 Issue 24, p243118
Academic Journal
By repeatedly illuminating fused silica slabs with focused femtosecond pulses, we permanently decrease the local refractive index without increasing the linear absorption or scattering. This progressively forms a biconvex lens in the prefocal region. With linearly polarized light, the index change reaches several percent and is associated with the formation of an array of planar nanocracks. We analyze the polarization-dependent focusing power of the subwavelength periodic structure. While the detailed material modification changes, spontaneous defocusing lens formation is a common feature of every wide-band-gap transparent materials that we have studied (SiO2, BK7, LiF, sapphire, and mica).


Related Articles

  • The application of complex absorbing potentials to an invariant embedding scattering... Huarte-Larranaga, Fermin; Gimenez, Xavier; Lucas, Josep M.; Aguilar, Antonio // Journal of Chemical Physics;8/1/1999, Vol. 111 Issue 5, p1979 

    Reports on the application of complex absorbing potentials to an invariant embedding scattering method. Range of potential energy surfaces covered by the application; Use of the absorbing potential in all cases; Exploration of the reactive processes; Calculation of the cumulative reaction...

  • Energy-dependent cross sections and nonadiabatic reaction dynamics in... Nizkorodov, Sergey A.; Harper, Warren W. // Journal of Chemical Physics;11/8/1999, Vol. 111 Issue 18, p8404 

    Discusses the use of high-sensitivity direct infrared laser absorption methods to investigate quantum state-resolved reactive scattering dynamics in low-density crossed supersonic jets under single collision conditions. Nascent rotational state distributions and relative cross sections for...

  • Optical limiting properties of mono- and multiple-functionalized fullerene derivatives. Riggs, Jason E.; Sun, Ya-Ping // Journal of Chemical Physics;3/1/2000, Vol. 112 Issue 9 

    Optical limiting properties of a series of mono- and multiple-functionalized fullerene derivatives were investigated systematically in room-temperature solutions at different concentrations. The results provide overwhelming experimental evidence for the strong concentration dependence of optical...

  • An effect of “scattering by absorption” observed in near-infrared properties of nanoporous silica. Dombrovsky, Leonid; Lallich, Sylvain; Enguehard, Franck; Baillis, Dominique // Journal of Applied Physics;Apr2010, Vol. 107 Issue 8, p083106 

    The obtained spectroscopic data for absorption and scattering characteristics of nanoporous silica in the wavelength range from 0.25 to 7 μm are analyzed on the basis of the Mie theory. It is shown that aggregates of primary nanoparticles are responsible for relatively high scattering in the...

  • Pore-size dependence of the self-diffusion of hexane in silica gels. Baumert, J.; Asmussen, B.; Gutt, C.; Kahn, R. // Journal of Chemical Physics;6/22/2002, Vol. 116 Issue 24, p10869 

    Quasielastic neutron scattering has been used to investigate the diffusion of hexane molecules adsorbed in mesoporous silica gels with pore diameters of 20, 40, and 60 Å, respectively. Within the temperature range 180 K ≤ T ≤ 240 K molecular reorientations, which are best...

  • Measurements of absorption and Brillouin sidescattering from planar plasmas produced by 0.53 μm laser light. Drake, R. P.; Turner, R. E.; Lasinski, B. F.; Campbell, E. M.; Kruer, W. L.; Williams, E. A.; Kauffman, R. L. // Physics of Fluids B: Plasma Physics;Jun89, Vol. 1 Issue 6, p1295 

    A study of the absorption and scattering of laser light by planar, laser-produced plasmas is reported. Up to 4 kJ of 0.53 μm laser light irradiated thick, gold targets in 1 nsec pulses at intensities up to 4×1015 W/cm2. The absorption was determined from measurements of the scattered...

  • Coherence gating in optical heterodyne detection measurements of scattering and absorption in highly scattering media. Chan, K. P.; Yamada, M.; Inaba, H. // Applied Physics B: Lasers & Optics;1996, Vol. 63 Issue 3, p249 

    We present a quantitative study of coherent detection imaging based on optical heterodyne detection measurement of absorption and scattering in strongly scattering media. Measurement results using a cw laser are compared to those obtained from the temporal scattering profiles of coherent photon...

  • Determination of the temporal response function in femtosecond pump-probe systems. Ziólek, M.; Lorenc, M.; Naskrecki, R. // Applied Physics B: Lasers & Optics;2001, Vol. 72 Issue 7, p843 

    Abstract. A method of determination of the true temporal response function for pump-probe type of experiments with femtosecond time resolution is presented. An analytical formula allowing calculation of group velocity dispersion (GVD) modified and sample thickness-sensitive pump-probe cross...

  • Helium scattering cross section of adsorbates on highly corrugated surfaces. Farías, D.; Patting, M.; Rieder, K. H. // Journal of Chemical Physics;3/8/2000, Vol. 112 Issue 10 

    The properties of different definitions of the cross section for helium scattering of perfectly diffuse adsorbates on highly corrugated surfaces have been investigated experimentally. For the adsorption of CO on Rh(311) we found that the normalized cross section associated with each diffraction...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics