Photonic crystals with silver nanowires as a near-infrared superlens

Xinhua Hu; Chan, C. T.
August 2004
Applied Physics Letters;8/30/2004, Vol. 85 Issue 9, p1520
Academic Journal
Lensing effect can be achieved in photonic crystal (PC) slabs, but in many situations, the mechanism can be traced to the self-collimation effect of a square-like constant frequency surface. We show that using a metal-in-dielectric configuration, circular constant frequency surface can be obtained, and the lensing effect then obeys fairly well the image–distance relationship characteristic of an n=-1 material. As a two-dimensional example, far-field imaging is realized in square arrays of silver nanowires in air for transverse-electric waves at 400 nm. A high resolution of resolution of about 100 nm obtained with a three layer slab of such PCs. By varying the matrix, the results are extended to optic and near-infrared regime.


Related Articles

  • Effects of magnetic field on the 15V 31 344.9 band of CS2 studied by sub-Doppler high-resolution spectroscopy. Katô, Hajime; Doi, Atsushi; Taroura, Yoshikazu; Nagakura, Saburo // Journal of Chemical Physics;9/22/1995, Vol. 103 Issue 12, p4869 

    Effects of an external magnetic field on the excitation spectrum of the 15V 31 344.9 band of the CS2 molecule are measured with sub-Doppler resolution. New lines are observed to appear near the R(2) and P(4) lines when a magnetic field is applied. These lines are observed to be composed of five...

  • High resolution flat crystal spectrometer for the Shanghai EBIT. Xiao, J.; Gao, Y.; Zhang, X.; Lu, D.; Hu, W.; Gao, M.; Chen, W.; Zou, Y. // Review of Scientific Instruments;Sep2008, Vol. 79 Issue 9, p093101 

    We report on a high resolution flat crystal spectrometer designed for the Shanghai EBIT. Its energy range is from 0.5 to 10 keV. Three crystals can be installed in the vacuum chamber simultaneously, and its effective Bragg angle can be covered from 15° to 75°. A vacuum version...

  • High resolution infrared measurements of the OH- bands in KTiOPO4. Theis, William M.; Norris, George B.; Porter, Marc D. // Applied Physics Letters;6/1/1985, Vol. 46 Issue 11, p1033 

    High resolution infrared transmission measurements were performed at 10–300 K on KTiOPO4 crystals grown by hydrothermal or flux methods. The previously reported low resolution OH- band at 2.8 μm resolved into more than 100 lines. The strongest line was identified as a pure OH- stretch...

  • Influence of Silver on the Galvanomagnetic Properties and Energy Spectrum of Mixed (Bi[sub 1 — ][sub x]Sb[sub x])[sub 2]Te[sub 3] Crystals. Kul’bachinskiı, V. A.; Kaminskiı, A. Yu.; Kytin, V. G.; Lost’ak, P.; Drasar, C.; de Visser, A. // Journal of Experimental & Theoretical Physics;Jun2000, Vol. 90 Issue 6, p1081 

    An investigation is made of the temperature dependences of the resistivity in the range 4.2-300 K, the Hall effect, and the Shubnikov-de Haas effect in magnetic fields up to 40 T in (Bi[sub 1 - x]Sb[sub x])[sub 2]Te[sub 3]Ag[sub y] single crystals (0 ... x ... 0.75). Doping (Bi[sub 1 - x]Sb[sub...

  • Spectra in the chaotic region: Methods for extracting dynamic information. Gomez Llorente, Jose M.; Zakrzewski, Jakub; Taylor, Howard S.; Kulander, Kenneth C. // Journal of Chemical Physics;2/1/1989, Vol. 90 Issue 3, p1505 

    Nonlinear dynamics is applied to chaotic unassignable atomic and molecular spectra with the aim of extracting detailed information about regular dynamic motions that exist over short intervals of time. It is shown how this motion can be extracted from high resolution spectra by doing low...

  • The new digital Ah index of geomagnetic activity at Alibag and other stations. Martini, D.; Mursula, K.; Alex, S. // Current Science (00113891);1/25/2009, Vol. 96 Issue 2, p280 

    The geomagnetic activity carries important information about various parameters of the near-earth space and the solar magnetic activity on short as well as on long-term scales. In short or moderately long-term studies, the Kp/Ap index is a widely used reliable measure of geomagnetic activity. On...

  • Fine scale magnetic fields in the around a decaying active region. Sankarasubramanian, K.; Hagenaar, H. // Bulletin of the Astronomical Society of India;Dec2007, Vol. 35 Issue 4, p427 

    High spatial resolution spectro-polarimetric observation of a decaying spot was observed with the Diffraction Limited Spectro-Polarimeter. The spatial resolution achieved was close to the diffraction limit (0." 18) of the Dunn Solar Telescope. The fine scales present inside the decaying active...

  • Investigation of Rare-Earth Elements in the Atmosphere of the roAp Star HD 134214: Nd II, Nd III, and Gd II Lines. Mykhailytskaya, N. // Astrophysics;Dec2015, Vol. 58 Issue 4, p512 

    High-resolution spectra are used to investigate the abundance of rare-earth elements (REE) in the atmosphere of the magnetic, rapidly oscillating, chemically peculiar (roAp) star HD134214. The neodymium abundance is investigated using the lines of neodymium in the first and second ionization...

  • High duty cycle and continuous terahertz emission from germanium. Bru¨ndermann, Erik; Chamberlin, Danielle R.; Haller, Eugene E. // Applied Physics Letters;5/22/2000, Vol. 76 Issue 21 

    We measured laser emission from Be-doped Ge crystals with intercontact distances as small as 0.5 mm. An improved heat sink allowed a twofold increase of the laser duty cycle to 5%. We also report the measurements of THz emission from small Be-doped Ge crystals under continuous excitation with...


Read the Article


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

Try another library?
Sign out of this library

Other Topics