Transparent photonic band in metallodielectric nanostructures

Abstract

Under certain conditions, a transparent photonic band can be designed into a onedimensional metallodielectric nanofilm structure. Unlike conventional pass bands in photonic crystals, where the finite thickness of the structure affects the transmission of electromagnetic fields having frequency within the pass band, the properties of the transparent band are almost unaffected by the finite thickness of the structure. In other words, an incident field at a frequency within the transparent band exhibits 100% transmission independent of the number of periods of the structure. The transparent photonic band corresponds to excitation of pure eigenstate modes across the entire Bloch band in structures possessing mirror symmetry. The conditions to create these modes 1 and thereby to lead to a totally transparent band phenomenon are discussed.

Surface Plasmon-Polariton Assisted Metal-Dielectric Multilayers as Passband Filters for Ultraviolet Range

“…According to Raether [9], the surface roughness can be regarded as a superposition of a number of diffractive gratings with various parameters and can serve as a coupling means between the propagating and evanescent waves. The in-plane component of plasmons thus obtained at the input metal-dielectric interface resonantly couples with the waves on the further metal layers and the result is the Bloch propagation of the evanescent modes [7,8]. Finally, the surface roughness at the exit interface again converts electromagnetic energy from plasmons back to the output propagating mode.…”

“…One of them is through the simple interference of propagating waves and is determined through the application of the transfer matrix method. Another is through the coupled plasmon waveguide resonance [7,8]. For this to be effective, surface roughness must serve as a coupler between the input propagating wave and the in-plane plasmon wave.…”

“…Optical Materials, ISCOM07, Belgrade, Serbia, September [3][4][5][6][7]2007 Surface Plasmon-Polariton Assisted Metal-Dielectric Multilayers as Passband Filters for Ultraviolet Range We designed and fabricated metal-dielectric multilayers intended for passband filters in the ultraviolet range. We determined the dispersion characteristics by the Bloch approach to evanescent wave resonant coupling and calculated the spectral characteristics using the transfer matrix method while taking into account real dispersion and absorptive losses.…”

Analytic Expression for the Effective Plasma Frequency in One-Dimensional Metallic-Dielectric Photonic Crystal

“…There are several reports where the transparency cutoff of a 1D-MDPC has been calculated or measured [24][25][26][27]. To the author's knowledge, only one work by Xu et al [28] exists, where an explicit formula for the effective plasma frequency has been given.…”

Dispersion of Bloch Modes in a Multilayer Structure with Alternating Left-Handed and Right-Handed Materials

“…Diagrams of photonic bands and gaps describe the properties of an infinite periodic structure [7]. Unlike conventional pass bands in photonic crystals, where the finite thickness of the structure affects the transmission of light having frequency within the pass band [8], the properties of the transparent band that can be designed into a 1D metallodielectric nanofilm structure [9,10] remain almost unaffected by the finite thickness of the structure. In contrast to metallodielectric multilayer structure, where the transparency band corresponds to the TM polarization only, we demonstrate that alternating LH-RH structure reveal frequency bands for both TE-and TM-polarizations that may overlap under certain conditions.…”