TITLE

Near-field scanning optical microscopy of photonic crystal nanocavities

AUTHOR(S)
Okamoto, Koichi; Loncˇar, Marko; Yoshie, Tomoyuki; Scherer, Axel; Qiu, Yueming; Gogna, Pawan
PUB. DATE
March 2003
SOURCE
Applied Physics Letters;3/17/2003, Vol. 82 Issue 11, p1676
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Near-field scanning optical microscopy was used to observe high-resolution images of confined modes and photonic bands of planar photonic crystal (PPC) nanocavities fabricated in active InGaAsP material. We have observed the smallest optical cavity modes, which are intentionally produced by fractional edge dislocation high-Q cavity designs. The size of the detected mode was roughly four by three lattice spacings. We have also observed extended dielectric-band modes of the bulk PPC surrounding the nanocavity by geometrically altering the bands in emission range and eliminating localized modes out of the emission range.
ACCESSION #
9275608

 

Related Articles

  • Surface morphology effect on the photoresponse of high temperature superconducting microbridges. Chou, Hsiung; Chen, H. Z.; Chen, Y. C.; Lin, T. L.; Chow, T. C.; Wang, T. P. // Applied Physics Letters;8/26/1996, Vol. 69 Issue 9, p1306 

    Three Y1Ba2Cu3O7-δ superconducting thin films with 20%, 60%, and 100% coverage of precipitates were fabricated into microbridges of 25×650 μm2 by a conventional photolithography method. These microbridges exhibit a Tco(R=0) from 83.6 to 87.2 K and a transition width of about 1.8 K....

  • Digital thin-film memory devices store data in color. Powell, Paula Noaker // Laser Focus World;Mar2001, Vol. 37 Issue 3, p22 

    Provides information on digital thin-film (DTF) color optical memory devices developed by researchers at the Nanoelectronics Laboratory at the University of Cincinnati in Ohio. Description of the DTF readout process; How to prove the multicolor optical memory concept; Bit density capacity of...

  • Erbium implanted thin film photonic materials. Polman, A. // Journal of Applied Physics;7/1/1997, Vol. 82 Issue 1, p1 

    Describes the synthesis, characterization, and application of several different Er-doped thin film photonic materials. Focus on oxide glasses, ceramic thin films, and amorphous and crystalline silicon; MeV ion implantation as a technique suited for doping of the materials; Role of implantation...

  • Detection efficiency of large-active-area NbN single-photon superconducting detectors in the ultraviolet to near-infrared range. Verevkin, A.; Zhang, J.; Sobolewski, Roman; Lipatov, A.; Okunev, O.; Chulkova, G.; Korneev, A.; Smirnov, K.; Gol’tsman, G. N.; Semenov, A. // Applied Physics Letters;6/24/2002, Vol. 80 Issue 25, p4687 

    We report our studies on spectral sensitivity of meander-type, superconducting NbN thin-film single-photon detectors (SPDs), characterized by GHz counting rates of visible and near-infrared photons and negligible dark counts. Our SPDs exhibit experimentally determined quantum efficiencies...

  • The slowing-down of ultrafast relaxation in C[sub 60] films at high femtosecond pump intensities. Farztdinov, V.M.; Kovalenko, S.A.; Matveets, Y.A.; Starodubtsev, N.F.; Marowsky, G. // Applied Physics B: Lasers & Optics;1998, Vol. 66 Issue 2, p225 

    Abstract. The ultrafast relaxation alter excitation of a C[sub 60] thin film was investigated in the energy range between 1.6 eV and 3.4eV by a pump-supercontinuum probe (PSCP) technique with a 40 fs time resolution. The relaxation rate showed pronounced spectral dependence, with a maximum at 2...

  • Periodic Thin-Film Interference Filters as One-Dimensional Photonic Crystals. Chigrin, D. N.; Sotomayor Torres, C. M. // Optics & Spectroscopy;Sep2001, Vol. 91 Issue 3, p484 

    We review the photonic band gap-related properties of a simple periodic system of thin dielectric layers. Properties associated with forbidden and allowed bands of such one-dimensional photonic crystals are presented. A revision of the properties of forbidden bands leads to an omnidirectional...

  • Optical Properties of Thin Films of Closely Packed SiO[sub 2] Spheres. Bazhenov, A. V.; Gorbunov, A. V.; Aldushin, K. A.; Masalov, V. M.; Emel�chenko, G. A. // Physics of the Solid State;Jun2002, Vol. 44 Issue 6, p1071 

    Ordered, closely packed, defect-free one-, two-, and three-layer thick films of SiO[sub 2] spheres of diameter D varying from 0.6 to 1.4�m were obtained. Their optical transmittance and reflectance spectra were measured in the range 0.3�2.5 eV. The one-layer structures reveal a...

  • Thermal and carrier transport originating from photon recycling and non-radiative recombination in laser micromachining of GaAs thin films. Zhang, X.; Wen, J.; Sun, C. // Applied Physics A: Materials Science & Processing;2003, Vol. 76 Issue 2, p261 

    Coupled thermal and carrier transports (electron/hole generation, recombination, diffusion and drifting) in laser photoetching of GaAs thin film is investigated. A new volumetric heating mechanism originating from SRH (Shockley�Read�Hall) non-radiative recombination and photon...

  • Effect of ultraviolet irradiation on the white light degraded electronic properties of hydrogenated amorphous silicon films. Ganguly, Gautam; Dutta, Joydeep; Ray, Swati; Barua, A. K. // Applied Physics Letters;11/6/1989, Vol. 55 Issue 19, p1975 

    The electronic properties of hydrogenated amorphous silicon (a-Si:H) thin films are known to undergo metastable light-induced changes that can be reversed by annealing at elevated temperatures. We have observed for the first time that annealing of the light-induced changes in the dark...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

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

Try another library?
Sign out of this library

Other Topics