Journal ArticleDOI
Modal transmission-line theory of multilayered grating structures
Theodor Tamir,Shuzhang Zhang +1 more
TLDR
The transmission-line representation can serve as a template for computational algorithms that systematically evaluate dispersion properties, radiation effects, wave coupling and other characteristics that are not readily obtained by other methods.Abstract:
Solutions to problems involving the scattering and guiding of waves by multilayered grating configurations can be phrased in rigorous modal terms. We show that such a modal solution can be represented by electrical transmission-line networks, which are generalized forms of simpler conventional circuits. This approach brings considerable physical insight into the grating diffraction process and facilitates the derivation of the fields everywhere. In particular, the transmission-line representation can serve as a template for computational algorithms that systematically evaluate dispersion properties, radiation effects, wave coupling and other characteristics that are not readily obtained by other methods. Examples illustrating the application of the present approach are given for waves guided by grating configurations encountered in optoelectronic devices.read more
Citations
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Journal ArticleDOI
Design of Highly Efficient Light-Trapping Structures for Thin-Film Crystalline Silicon Solar Cells
Ning-Ning Feng,Jurgen Michel,Lirong Zeng,Jifeng Liu,Ching-yin Hong,Lionel C. Kimerling,Xiaoman Duan +6 more
TL;DR: In this paper, a light-trapping structure was proposed to increase the efficiency of thin-film crystalline silicon solar cells, which consists of an antireflection (AR) coating, a silicon active layer, and a back reflector that combines a diffractive reflection grating with a distributed Bragg reflector.
A modal analysis of lamellar diffraction gratings in conical mountings
TL;DR: In this article, a modal analysis of lamellar grating in conical mountings is presented, which is an extension of the analysis of Botten et al. which considered non-conical grating.
Journal ArticleDOI
Band gaps and leaky-wave effects in resonant photonic-crystal waveguides.
Y. Ding,Robert Magnusson +1 more
TL;DR: In general, phase matching to a resonant leaky mode occurs via real propagation constant that is found by dispersion computations employing complex frequency, and the bands in complex frequency are well defined exhibiting a clear gap.
Journal ArticleDOI
Effective Surface Impedance of a Printed-Circuit Tensor Impedance Surface (PCTIS)
Amit M. Patel,Anthony Grbic +1 more
TL;DR: In this paper, the surface impedance and dispersion equation of a printed-circuit tensor impedance surface (PCTIS) is derived using a modified transverse resonance technique.
Journal ArticleDOI
Resonant scattering by multilayered dielectric gratings
Theodor Tamir,Shuzhang Zhang +1 more
TL;DR: In this article, the authors examined the field and power flux inside the dielectric grating region by using a rigorous modal solution of the scattering problem and showed that the power flux is almost identical to that of a leaky wave that can be supported by the grating structure.
References
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Formulation for stable and efficient implementation of the rigorous coupled-wave analysis of binary gratings
TL;DR: In this paper, the authors presented a stable and efficient numerical implementation of the analysis technique for one-dimensional binary gratings for both TE and TM polarization and for the general case of conical diffraction.
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M. G. Moharam,Thomas K. Gaylord +1 more
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A New Theory of Wood’s Anomalies on Optical Gratings
A. Hessel,A. A. Oliner +1 more
TL;DR: In this paper, a new theory of Wood's anomalies is presented which is based on a guided wave approach rather than the customary multiple scattering procedure, which provides both new insight and a method of calculation.
Journal ArticleDOI
Analysis and applications of optical diffraction by gratings
Thomas K. Gaylord,M. G. Moharam +1 more
TL;DR: In this article, an exact formulation of the grating diffraction problem without approximations is presented, using a series of fundamental assumptions, which reduces to the various existing approximate theories in the appropriate limits.