TITLE

Unidirectional laser emission from polymer-based spiral microdisks

AUTHOR(S)
Ben-Messaoud, T.; Zyss, J.
PUB. DATE
June 2005
SOURCE
Applied Physics Letters;6/13/2005, Vol. 86 Issue 24, p241110
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Lasing emission has been observed in optically pumped DCM-poly(methyl methacrylate)-based spiral-shaped micropillar cavities. By transverse ring shaping of the pump beam, unidirectional laser emission is being clearly favored. The resulting improved far-field directionality evidenced by our imaging technique is shown to originate from the notch of the spiral microcavities.
ACCESSION #
17452690

 

Related Articles

  • Mechanical Characterization of Polymethyl Methacrylate and Polycarbonate Blends. Dixit, Manasvi; Shaktawat, Vinodini; Sharma, Kananbala; Saxena, Narendra S.; Sharma, Thaneshwar P. // AIP Conference Proceedings;4/23/2008, Vol. 1004 Issue 1, p311 

    Blends of Poly methyl methacrylate (PMMA) and Polycarbonate (PC) were prepared using solution casting method in five different concentrations (0%, 25%, 50%, 75%, and 100% by weight) using dichloromethane (CH2Cl2) as a solvent. The mechanical properties were studied by Dynamic Mechanical Analyser...

  • A Conjecture to Derive An Equation of Motion For Dynamic Fracture. Mokross, B. J. // International Journal of Fracture;Jul2005, Vol. 134 Issue 2, pL21 

    Crack propagation is hypothesized as being a discontinuous process and by decoupling in time the (macroscopic) dynamic energy release rate, Gd, from the (microscopic) J-integral a discrete non-linear equation is obtained having the form of a logistic map. Applying this equation to fracture in...

  • Experimental and Computational Investigation of Low-Impact Velocity and Quasi-Static Failure of PMMA. Pearson, J.; LaBarbera, D.; Prabhugoud, M.; Peters, K.; Zikry, M. // Experimental Mechanics;Jan2013, Vol. 53 Issue 1, p53 

    An investigation of the low velocity impact and quasi-static failure of polymethylmethacrylate (PMMA) based on global and local post-impact strain measurements was conducted. Local strains were obtained from surface mounted Fiber Bragg Grating (FBG) sensors, and they were combined with global...

  • Ultrafast resonant optical switching in isolated polyfluorenes chains. Virgili, Tersilla; Marinotto, Daniele; Lanzani, Guglielmo; Bradley, Donal D.C. // Applied Physics Letters;2/28/2005, Vol. 86 Issue 9, p091113 

    Using ultrafast spectroscopy, we report evidence of monodimensional photophysics coming from isolated chains of poly(9,9-dioctylfluorene) dispersed in a polymethylmethacrylate matrix. We identify intrachain charge carriers dynamics, the decay taking place in about 1 ps. Using a three-pulse...

  • Buckling of poly(methyl methacrylate) in stimulus-responsive shape recovery. Zhao, Yong; Chun Wang, Chang; Min Huang, Wei; Purnawali, Hendra // Applied Physics Letters;9/26/2011, Vol. 99 Issue 13, p131911 

    We investigate buckling phenomenon during shape recovery in a poly(methyl methacrylate) upon immersing in ethanol (chemo-responsive) and heating (thermo-responsive). The underlying mechanism is revealed and the influential factors are discussed. Such buckling phenomenon is generic and applicable...

  • Determination of elastic modulus and hardness of viscoelastic-plastic materials by instrumented indentation under harmonic load. MenĨik, J.; Rauchs, G.; Bardon, J.; Riche, A. // Journal of Materials Research;Oct2005, Vol. 20 Issue 10, p2660 

    When determining elastic modulus and hardness of viscoelastic-plastic materials by depth-sensing indentation, one must respect their specific response. In the monotonic load-unload testing mode, the unloading should be preceded by a dwell mitigating the influence of the delayed deforming. The...

  • Preparation, Properties, and Self-Assembly Behavior of PTFE-Based Core-Shell Nanospheres. Sparnacci, Katia; Antonioli, Diego; Deregibus, Simone; Laus, Michele; Zuccheri, Giampaolo; Boarino, Luca; De Leo, Natascia; Comoretto, Davide // Journal of Nanomaterials;2012, p1 

    Nanosized PTFE-based core-shell particles can be prepared by emulsifier-free seed emulsion polymerization technique starting from spherical or rod-like PTFE seeds of different size. The shell can be constituted by the relatively high Tg polystyrene and polymethylmethacrylate as well as by low Tg...

  • PMMA.  // ICIS Chemical Business;11/26/2012, Vol. 282 Issue 15, p31 

    The article presents an overview of the acrylic polymer polymethyl methacrylate (PMMA), which is primarily used in car headlamps and tail lights. A discussion of the global production and demand for PMMA, and of factors, including the costs of feedstocks MMA and acetone, which have influenced...

  • Pulsed laser characterization of multicomponent polymer acoustic and mechanical properties in the sub-GHz regime. Saini, G.; Pezeril, T.; Torchinsky, D. H.; Yoon, J.; Kooi, S. E.; Thomas, E. L.; Nelson, K. A. // Journal of Materials Research;Mar2007, Vol. 22 Issue 3, p15 

    We investigated the acoustic properties in the sub-GHz frequency regime of a multilayer system comprising alternating 100-nm scale TiO2/poly(methyl methacrylate) (PMMA) layers through a laser photoacoustic method, impulsive stimulated thermal scattering (ISTS). The acoustic dispersion curves...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

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

Try another library?
Sign out of this library

Other Topics