Academic literature on the topic 'Photonic band gap'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Photonic band gap.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Journal articles on the topic "Photonic band gap"
Yablonovitch, E. "Photonic band-gap structures." Journal of the Optical Society of America B 10, no. 2 (February 1, 1993): 283. http://dx.doi.org/10.1364/josab.10.000283.
Full textYablonovitch, E. "Photonic band-gap crystals." Journal of Physics: Condensed Matter 5, no. 16 (April 19, 1993): 2443–60. http://dx.doi.org/10.1088/0953-8984/5/16/004.
Full textCheng, C. C. "Lithographic band gap tuning in photonic band gap crystals." Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures 14, no. 6 (November 1996): 4110. http://dx.doi.org/10.1116/1.588601.
Full textFan, S. S., R. Guo, Z. Y. Li, and W. H. Huang. "Simulation of 3D Layer-By-Layer Photonic Crystals." Solid State Phenomena 121-123 (March 2007): 1165–70. http://dx.doi.org/10.4028/www.scientific.net/ssp.121-123.1165.
Full textZhang, Gai Mei, Can Wang, Yan Jun Guo, Wang Wei, and Xiao Xiang Song. "Preparation and Optical Properties of One-Dimensional Ag/SiOx Photonic Crystal." Applied Mechanics and Materials 576 (June 2014): 27–31. http://dx.doi.org/10.4028/www.scientific.net/amm.576.27.
Full textSirigiri, J. R., K. E. Kreischer, J. Machuzak, I. Mastovsky, M. A. Shapiro, and R. J. Temkin. "Photonic-Band-Gap Resonator Gyrotron." Physical Review Letters 86, no. 24 (June 11, 2001): 5628–31. http://dx.doi.org/10.1103/physrevlett.86.5628.
Full textCassagne, D., C. Jouanin, and D. Bertho. "Hexagonal photonic-band-gap structures." Physical Review B 53, no. 11 (March 15, 1996): 7134–42. http://dx.doi.org/10.1103/physrevb.53.7134.
Full textRostovtsev, Yuri V., Andrey B. Matsko, and Marlan O. Scully. "Electromagnetically induced photonic band gap." Physical Review A 60, no. 1 (July 1, 1999): 712–14. http://dx.doi.org/10.1103/physreva.60.712.
Full textSigalas, M. M., C. T. Chan, K. M. Ho, and C. M. Soukoulis. "Metallic photonic band-gap materials." Physical Review B 52, no. 16 (October 15, 1995): 11744–51. http://dx.doi.org/10.1103/physrevb.52.11744.
Full textJayawardana, K. B. S. K. B., and K. A. I. L. Wijewardena Gamalath. "Study on the Photonic Band Gaps of the Face Centered Cubic Crystals." International Letters of Chemistry, Physics and Astronomy 70 (September 2016): 63–75. http://dx.doi.org/10.18052/www.scipress.com/ilcpa.70.63.
Full textDissertations / Theses on the topic "Photonic band gap"
Yi, Yasha 1974. "On-chip silicon based photonic structures : photonic band gap and quasi-photonic band gap materials." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/29457.
Full text"June 2004."
Includes bibliographical references (leaves 170-180).
This thesis focuses on integrated silicon based photonic structures, photonic band gap (PBG) and quasi-photonic band gap (QPX) structures, which are based on high refractive index contrast dielectric layers and CMOS compatibility. We developed a new type of silicon waveguide - Photonic Crystal (PC) cladding waveguide is studied based on PBG principle. The refractive index in the new PC cladding waveguide core therefore has a large flexibility. Low index core (e.g. SiO2) or hollow core waveguide can be realized with our PC cladding waveguide structure. The fabrication of the waveguide is compatible to CMOS process. To demonstrate the PBG guiding mechanism, we utilized prism coupling to the Asymmetric PC cladding waveguide and the effective index of the propagation mode is measured directly. The measured effective mode index is less than both Si and Si3N4 cladding layers, which is clear demonstration of the photonic band gap guiding principle. We also fabricated and measured the PC cladding channel waveguide. Potential applications include high power transmission, low dispersion, thin cladding thickness and nonlinear properties engineering. Secondly, we developed a Si-based multi-channel optical filter with tunability, which is based on omnidirectional reflecting photonic band gap structure with a relatively large air gap defect. Using only one device, multi channel filter with tunability around two telecom wavelength 1.55[mu]m and 1.3[mu]m by electrostatic force is realized. Four widely spaced resonant modes within the photonic band gap are observed, which is in good agreement with numerical simulations.
(cont.) The whole process is compatible with current microelectronics process technology. There are several potential applications of this technology in wavelength division multiplexing (WDM) devices. Thirdly, to further extend the photonic crystal idea, we studied the quasi-photonic crystal structures and their properties, especially for the fractal photonic band gap properties and the transparent resonant transmission states. A-periodic Si/SiO2 Thue-Morse (T-M) multilayer structures have been fabricated, for the first time, to investigate both the scaling properties and the omnidirectional reflectance at the fundamental optical band-gap. Variable angle reflectance data have experimentally demonstrated a large reflectance band-gap in the optical spectrum of a T-M quasicrystal, in agreement with transfer matrix simulations. The physical origin of the T-M omnidirectional band-gap has been explained as a result of periodic spatial correlations in the complex T-M structure. The unprecedented degree of structural flexibility of T-M systems can provide an attractive alternative to photonic crystals for the fabrication of photonic devices.
by Yasha Yi.
Ph.D.
Castiglicone, Dario Calogero. "Block copolymer based photonic band gap materials." Thesis, University of Reading, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.501328.
Full textMaldovan, Martin. "Exploring for new photonic band gap structures." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/30121.
Full textIncludes bibliographical references (leaves 103-104).
In the infinite set of possible photonic band gap structures there are no simple rules to serve as a guide in the search for optimal designs. The existence and characteristics of photonic band gaps depend on such factors as dielectric contrast, volume fraction, symmetry and connectivity of the dielectric structure. In this thesis a large set of photonic structures are developed to help understand the nature of the dependencies and provide a platform for easy fabrication of three-dimensional structures with large complete photonic band gaps. Two approaches for accessing new structures are examined. A systematic method based on crystallography to search for photonic band gap structures is established in this thesis. A search within the FCC space groups is undertaken resulting in the discovery of two new photonic band gap structures. Specific structures found in self-organizing systems, the single P, the single G, and single D structures, are shown to possess large photonic band gaps. Design guidelines to fabricate these structures by interference lithography are given. A layer-by-layer approximation of the single D structure amenable to fabrication by conventional semiconductor fabrication techniques is proposed. A second technique for obtaining photonic band gap structures with different topologies is based on the splitting of nodes in the diamond network. The realization of these structures using block copolymer self assembly and layer-by-layer lithographic technique are briefly examined.
by Martin Maldovan.
Ph.D.
Lancaster, Greg A. "A Tunable Electromagnetic Band-gap Microstrip Filter." DigitalCommons@CalPoly, 2013. https://digitalcommons.calpoly.edu/theses/952.
Full textWhitehead, Debra Elayne. "Photonic band gap systems based on synthetic opals." Thesis, University of Salford, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.402126.
Full textNanni, Emilio A. (Emilio Alessandro). "A 250 GHz photonic band gap gyrotron amplifier." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/82364.
Full textCataloged from PDF version of thesis.
Includes bibliographical references (p. 191-206).
This thesis reports the theoretical and experimental investigation of a novel gyrotron traveling-wave-tube (TWT) amplifier at 250 GHz. The gyrotron amplifier designed and tested in this thesis has achieved a peak small signal gain of 38 dB at 247.7 GHz, with a 32 kV, 0.35 A electron beam and a 8.9 T magnetic field. The instantaneous -3 dB bandwidth of the amplifier at peak gain is 0.4 GHz. A peak output power of 45 W has been measured. The output power is not saturated but is limited by the 7.5 mW of available input power. The amplifier can be tuned for operation from 245- 256 GHz. With a gain of 24 dB and centered at 253.25 GHz the widest instantaneous -3 dB bandwidth of 4.5 GHz was observed for a 19 kV, 0.305 A electron beam. To achieve stable operation at these high frequencies, the amplifier uses a novel photonic band gap (PBG) interaction circuit. The PBG interaction circuit confines the TE₀₃-like mode which couples strongly to the electron beam. The PBG circuit provides stability from oscillations by supporting the propagation of TE modes in a narrow range of frequencies, allowing for the confinement of the operating TE₀₃-like mode while rejecting the excitation of oscillations at lower frequencies. Experimental results taken over a wide range of parameters, 15-30 kV and 0.25-0.5 A, show good agreement with a theoretical model. The theoretical model incorporates cold test measurements for the transmission line, input coupler, PBG waveguide and mode converter. This experiment achieved the highest frequency of operation (250 GHz) for a gyrotron amplifier. At present, there are no other amplifiers in this frequency range that are capable of producing either high gain or high-output power. With 38 dB of gain and 45 W this is also the highest gain observed above 94 GHz and the highest output power achieved above 140 GHz by any conventional-voltage vacuum electron device based amplifier. The output power, output beam pattern, instantaneous bandwidth, spectral purity and shot-to-shot stability of the amplified pulse meet the basic requirements for the implementation of this device on a pulsed dynamic nuclear polarization (DNP) nuclear magnetic resonance (NMR) spectrometer.
by Emilio A. Nanni.
Ph.D.
Smirnova, Evgenya I. "Novel photonic band gap structures for accelerator applications." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/32294.
Full text"June 2005."
Includes bibliographical references (p. 181-184).
In this thesis I present the design and experimental demonstration of the first photonic band gap (PBG) accelerator at 17.140 GHz. A photonic band gap structure is a one-, two- or three-dimensional periodic metallic and/or dielectric system (for example, of rods), which acts like a filter, reflecting rf fields in some frequency range and allowing rf fields at other frequencies to transmit through. Metal PBG structures are attractive for the Ku-band accelerators, because they can be employed to suppress wakefields. Wakefields are unwanted modes affecting the beam propagation or even destroying the beam. Suppression of wakefields is important. In this thesis, the theory of metallic PBG structures is explained and the Photonic Band Gap Structure Simulator (PBGSS) code is presented. PBGSS code was well benchmarked and the ways to'benchmark the code are described. Next, the concept of a PBG resonator is introduced. PBG resonators were modelled with Ansoft HFSS code, and a single-mode PBG resonator was designed. The HFSS design of a travelling-wave multi- cell PBG structure was performed. The multicell structure was built, cold-tested and tuned. Finally, the hot-test PBG accelerator demonstration was performed at the accelerator laboratory. The PBG accelerating structure was installed inside a vacuum chamber on the Haimson Research Corporation (HRC) accelerator beam line and powered with 2 MW from the HRC klystron. The electron bunches were produced by the HRC accelerator. The electron beam was accelerated by 1.4 MeV inside the PBG structure.
by Evgenya I. Smirnova.
Ph.D.
Chen, Jerry C. (Jerry Chia-yung). "Electromagnetic field computation and photonic band gap devices." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/11293.
Full textIncludes bibliographical references (p. 147-166).
by Jerry Chia-yung Chen.
Ph.D.
Marsh, Roark A. "Experimental study of photonic band gap accelerator structures." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/52788.
Full textThis electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
Cataloged from student submitted PDF version of thesis.
Includes bibliographical references (p. 181-186).
This thesis reports theoretical and experimental research on a novel accelerator concept using a photonic bandgap (PBG) structure. Major advances in higher order mode (HOM) damping are required for the next generation of TeV linear colliders. In this work, PBG HOMs are studied theoretically and experimentally for the first time. PBG HOMs are shown in simulation to be low Q lattice modes, removed from the cavity defect and beam position. Direct wakefield measurements were made in hot test using the bunch train produced by the MIT HRC 17 GHz linear accelerator. Measurements are compared with beam-loading theory, and wakefield simulations using ANALYST. Excellent agreement is observed between theory predictions and power measured in the 17 GHz fundamental operating mode; reasonable agreement is also seen with the 34 GHz wakefield HOM. In order to understand the performance of PBG structures under realistic high gradient operation, an X-band (11.424 GHz) PBG structure was designed for high power testing in a standing wave breakdown experiment at SLAC. The PBG structure was hot tested to gather breakdown statistics, and achieved an accelerating gradient of 65 MV/m at a breakdown rate of two breakdowns per hour at 60 Hz, and accelerating gradients above 110 MV/m at higher breakdown rates. High pulsed heating occurred in the PBG structure, with many shots above 270 K, and an average of 170 K for 35x10⁶ shots. Damage was observed in both borescope and scanning electron microscope imaging.
(cont.) No breakdown damage was observed on the iris surface, the location of peak electric field, but pulsed heating damage was observed on the inner rods, the location of magnetic fields as high as 1 MA/m. Breakdown in accelerator structures is generally understood in terms of electric field effects. PBG structure results highlight the unexpected role of magnetic fields on breakdown. The hypothesis is presented that the low level electric field on the inner rods is enhanced by pulsed heating surface damage, and causes breakdown. A new PBG structure was designed with improved pulsed heating, and will be tested. These results greatly further the understanding of advanced structures with wakefield suppression that are necessary for future colliders.
by Roark A. Marsh.
Ph.D.
Aközbek, Neset. "Optical solitary waves in a photonic band gap material." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape15/PQDD_0007/NQ35096.pdf.
Full textBooks on the topic "Photonic band gap"
Soukoulis, Costas M., ed. Photonic Band Gap Materials. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1665-4.
Full textSoukoulis, C. M. Photonic Band Gap Materials. Dordrecht: Springer Netherlands, 1996.
Find full textPhoenix, Ben. Reduced size photonic band gap (PBG) resonators. Birmingham: University of Birmingham, 2003.
Find full textNATO Advanced Research Workshop on Localization and Propagation of Classical Wavesin Random and Periodic Structures (1992 Aghia Pelaghia, Greece). Photonic band gaps and localization. New York: Plenum Press, 1993.
Find full textSoukoulis, C. M., ed. Photonic Band Gaps and Localization. Boston, MA: Springer US, 1993. http://dx.doi.org/10.1007/978-1-4899-1606-8.
Full textLiu, Dahe. Achieving complete band gaps using low refractive index material. New York: Novinka/Nova Science Publishers, 2010.
Find full textM, Soukoulis C., North Atlantic Treaty Organization. Scientific Affairs Division., and NATO Advanced Study Institute on Photonic Band Gap Materials (1995 : Eloúnda, Greece), eds. Photonic band gap materials. Dordrecht: Kluwer Academic Publishers, 1996.
Find full textSoukoulis, C. M. Photonic Band Gap Materials. Ingramcontent, 2013.
Find full textPhotonic Band Gap Materials. Springer, 1996.
Find full textVats, Nipun. Non-markovian radiative phenomena in photonic band-gap materials. 2001.
Find full textBook chapters on the topic "Photonic band gap"
Soukoulis, C. M. "Photonic Band Gap Materials." In Diffuse Waves in Complex Media, 93–107. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-011-4572-5_4.
Full textSoukoulis, C. M. "Photonic Band Gap Materials." In Nanophase Materials, 509–14. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-1076-1_54.
Full textBiswas, R., C. T. Chan, M. Sigalas, C. M. Soukoulis, and K. M. Ho. "Photonic Band Gap Materials." In Photonic Band Gap Materials, 23–40. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1665-4_2.
Full textYablonovitch, E. "Photonic band-gap structures." In Confined Electrons and Photons, 885–98. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4615-1963-8_48.
Full textRoberts, P. J., P. R. Tapster, and T. J. Shepherd. "Photonic Band Structures and Resonant Modes." In Photonic Band Gap Materials, 261–70. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1665-4_15.
Full textSprik, Rudolf, A. D. Lagendijk, and Bart A. Tiggelen. "Photonic Band Structures of Atomic Lattices." In Photonic Band Gap Materials, 679–90. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1665-4_39.
Full textBiswas, R., S. D. Cheng, E. Ozbay, S. McCalmont, W. Leung, G. Tuttle, and K. M. Ho. "Optimized Antennas on Photonic Band Gap Crystals." In Photonic Band Gap Materials, 377–90. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1665-4_20.
Full textBirks, T. A., D. M. Atkin, G. Wylangowski, P. J. St Russell, and P. J. Roberts. "2D Photonic Band Gap Structures in Fibre Form." In Photonic Band Gap Materials, 437–44. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1665-4_24.
Full textCassagne, D., C. Jouanin, and D. Bertho. "Two-Dimensional Photonic Band Gaps: New Hexagonal Structures." In Photonic Band Gap Materials, 497–505. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1665-4_29.
Full textSigalas, M., C. M. Soukoulis, C. T. Chan, and K. M. Ho. "Photonic Band Gap Structures: Studies of the Transmission Coefficient." In Photonic Band Gap Materials, 173–202. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-1665-4_11.
Full textConference papers on the topic "Photonic band gap"
Pendry, JB. "Photonic Band Gap Materials." In The European Conference on Lasers and Electro-Optics. Washington, D.C.: Optica Publishing Group, 1996. http://dx.doi.org/10.1364/cleo_europe.1996.cthp3.
Full textPendry, J. "Photonic Band Gap Materials." In Proceedings of European Meeting on Lasers and Electro-Optics. IEEE, 1996. http://dx.doi.org/10.1109/cleoe.1996.562539.
Full textPrather, Dennis W. "Photonic Band Gap Structures for Terahertz Photonics." In Integrated Photonics Research. Washington, D.C.: OSA, 2001. http://dx.doi.org/10.1364/ipr.2001.imb1.
Full textShepherd, T. J. "Photonic Band Gaps." In The European Conference on Lasers and Electro-Optics. Washington, D.C.: Optica Publishing Group, 1998. http://dx.doi.org/10.1364/cleo_europe.1998.tut1.
Full textLousse, Virginie, Jean-Pol Vigneron, Xavier Bouju, and Jean-Marie Vigoureux. "Photon emission rates in photonic band-gap materials." In Symposium on Integrated Optoelectronic Devices, edited by Ali Adibi, Axel Scherer, and Shawn-Yu Lin. SPIE, 2002. http://dx.doi.org/10.1117/12.463885.
Full textMead, Robert D., Karl D. Brommer, Andrew M. Rappe, and J. D. Joannopoulos. "Donor and acceptor modes in photonic band-gap materials." In OSA Annual Meeting. Washington, D.C.: Optica Publishing Group, 1991. http://dx.doi.org/10.1364/oam.1991.mq1.
Full textMilosevic, Milan M., Marian Florescu, Weining Man, Geev Nahal, Sam Tsitrin, Timothy Amoah, Paul J. Steinhardt, Salvatore Torquato, Paul M. Chaikin, and Ruth Ann Mullen. "Hyperuniform disordered photonic band gap devices for silicon photonics." In 2014 IEEE 11th International Conference on Group IV Photonics. IEEE, 2014. http://dx.doi.org/10.1109/group4.2014.6962014.
Full textFedotov, Andrei B., Stanislav O. Konorov, A. N. Naumov, Joseph W. Haus, Richard B. Miles, Dmitri A. Sidorov-Biryukov, N. V. Chigarev, and Alexei M. Zheltikov. "Photonic band-gap planar hollow waveguide." In XVII International Conference on Coherent and Nonlinear Optics (ICONO 2001), edited by Anatoly V. Andreev, Pavel A. Apanasevich, Vladimir I. Emel'yanov, and Alexander P. Nizovtsev. SPIE, 2002. http://dx.doi.org/10.1117/12.468968.
Full textSkiba, J. K. "Modelling of photonic band gap structures." In 2004. 1st International Conference on Electrical and Electronics Engineering (ICEEE). IEEE, 2004. http://dx.doi.org/10.1109/stysw.2004.1459939.
Full textde LimaJr., Mauricio M., Rudolf Hey, Andres Cantarero, and Paulo V. Santos. "Acoustically tunable photonic band gap structures." In Congress on Optics and Optoelectronics, edited by Waclaw Urbanczyk, Bozena Jaskorzynska, and Philip S. J. Russell. SPIE, 2005. http://dx.doi.org/10.1117/12.623386.
Full textReports on the topic "Photonic band gap"
Author, Not Given. Photonic Band Gap Fiber Accelerator. Office of Scientific and Technical Information (OSTI), October 2000. http://dx.doi.org/10.2172/784860.
Full textFRITZ, IAN J., PAUL L. GOURLEY, G. HAMMONS, VINCENT M. HIETALA, ERIC D. JONES, JOHN F. KLEM, SHARON L. KURTZ, et al. Photonic Band Gap Structures as a Gateway to Nano-Photonics. Office of Scientific and Technical Information (OSTI), August 1999. http://dx.doi.org/10.2172/12654.
Full textSharkawy, Ahmed, Shouyuan Shi, Caihua Chen, and Dennis Prather. Photonic Band Gap Devices for Commercial Applications. Fort Belvoir, VA: Defense Technical Information Center, October 2006. http://dx.doi.org/10.21236/ada459258.
Full textZian, Yongxi, and Tatsuo Itoh. Microwave Applications of Photonic Band-Gap (PBG) Structures. Fort Belvoir, VA: Defense Technical Information Center, January 1999. http://dx.doi.org/10.21236/ada394301.
Full textEl-Kady, Ihab Fathy. Modeling of Photonic Band Gap Crystals and Applications. Office of Scientific and Technical Information (OSTI), January 2002. http://dx.doi.org/10.2172/804535.
Full textGaeta. Novel Optical Interaction in Band-Gap Photonic Crystal Fibers. Fort Belvoir, VA: Defense Technical Information Center, May 2006. http://dx.doi.org/10.21236/ada456785.
Full textSimakov, Evgenya I. Using photonic band gap structures for accelerators, microwaves and THz. Office of Scientific and Technical Information (OSTI), December 2013. http://dx.doi.org/10.2172/1110307.
Full textEveritt, Henry O. Optically Pumped Far-Infrared Lasers Based on Photonic Band Gap Crystals. Fort Belvoir, VA: Defense Technical Information Center, July 1998. http://dx.doi.org/10.21236/ada358035.
Full textKuchment, Peter. DEPSCoR Project Mathematical Analysis of Photonic Band-Gap Materials 1997-2000. Fort Belvoir, VA: Defense Technical Information Center, January 2000. http://dx.doi.org/10.21236/ada392750.
Full textLidorikis, Elefterios. Wave propagation in ordered, disordered, and nonlinear photonic band gap materials. Office of Scientific and Technical Information (OSTI), December 1999. http://dx.doi.org/10.2172/754789.
Full text