General formulas for the guiding properties of a multilayer slab waveguide

1987 ◽  
Vol 4 (4) ◽  
pp. 671 ◽  
Author(s):  
Yi-Fan Li ◽  
John W. Y. Lit
Keyword(s):  
Slab Waveguide ◽  
Multilayer Slab

scholarly journals Enhancement of THz resonance using a multilayer slab waveguide for a guided-mode resonance filter

2019 ◽  
Vol 27 (20) ◽  
pp. 29357 ◽  
Author(s):  
Sung Bo Lee ◽  
Hyeon Sang Bark ◽  
Tae-In Jeon
Keyword(s):  
Slab Waveguide ◽  
Guided Mode ◽  
Guided Mode Resonance ◽  
Multilayer Slab

Symmetric multilayer slab waveguide structure with a negative index material: TM case

Optik ◽  
2012 ◽  
Vol 123 (24) ◽  
pp. 2264-2268 ◽  
Author(s):  
Sofyan A. Taya ◽  
Eman J. El-Farram ◽  
Mazen M. Abadla
Keyword(s):  
Waveguide Structure ◽  
Slab Waveguide ◽  
Negative Index ◽  
Negative Index Material ◽  
Multilayer Slab

scholarly journals Passive and Active Slab Waveguide Mode Analysis Using Transfer Matrix Method

2021 ◽  
Author(s):  
Yaser Khorrami ◽  
DAVOOD Fathi ◽  
Amin Khavasi ◽  
Raymond C. Rumpf
Keyword(s):  
Transfer Matrix ◽  
Transfer Matrix Method ◽  
Matrix Method ◽  
Wave Packets ◽  
Scattering Matrix ◽  
Slab Waveguide ◽  
Mode Analysis ◽  
Slab Waveguides ◽  
Spatial Modes ◽  
Multilayer Slab

Abstract We present a general approach for numerical mode analysis of the multilayer slab waveguides using the Transfer Matrix Method (TMM) instead of the Finite Difference Frequency Domain (FDFD) method. TMM consists of working through the device one layer at a time and calculating an overall transfer matrix. Using the scattering matrix technique, we develop the proposed method for multilayer structures. We find waveguide modes for both passive and active slabs upon determinant analysis of the scattering matrix of the slab. To do this, we enhance the formulation of spatial scattering matrix to reach spatiotemporal scattering matrix. Our proposed technique is more efficient and faster than other numerical methods. Simulation results show either the spatial modes of inactive and hybrid spacetime modes of active planar waveguide. Also, spacetime wave packets can be seen using plane wave injection into the time-dependent slab waveguide instead of previously reported diffraction-free wave packets which have been obtained using the multifrequency input injection into the un-patterned inactive slab waveguides.

Study of the Leakage Loss in a Silica-on-Silicon Slab Waveguide

2003 ◽  
Vol 22 (4) ◽  
pp. 249-261 ◽  
Author(s):  
JUN LU ◽  
SAILING HE ◽  
VLADIMIR ROMANOV
Keyword(s):  
Slab Waveguide ◽  
Leakage Loss ◽  
Silicon Slab

Guided and Leaky Modes of a Multilayer Planar Slab Waveguide

2011 ◽  
Vol 1 (3) ◽  
pp. 14-21 ◽  
Author(s):  
S. K. Raghuwanshi ◽  
V. Kumar ◽  
Radha Raman Pandey
Keyword(s):  
Slab Waveguide ◽  
Leaky Modes

scholarly journals A Nanoplasmonic-Based Biosensing Approach for Wide-Range and Highly Sensitive Detection of Chemicals

Nanomaterials ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1961
Author(s):  
Francesco Arcadio ◽  
Luigi Zeni ◽  
Aldo Minardo ◽  
Caterina Eramo ◽  
Stefania Di Di Ronza ◽  
...  
Keyword(s):  
Optical Fibers ◽  
Limit Of Detection ◽  
Slab Waveguide ◽  
Grating Pattern ◽  
Transparent Substrate ◽  
Synthetic Receptor ◽  
Sensing Applications ◽  
Wide Range ◽  
Plastic Optical Fibers ◽  
Highly Sensitive Detection

In a specific biosensing application, a nanoplasmonic sensor chip has been tested by an experimental setup based on an aluminum holder and two plastic optical fibers used to illuminate and collect the transmitted light. The studied plasmonic probe is based on gold nanograting, realized on the top of a Poly(methyl methacrylate) (PMMA) chip. The PMMA substrate could be considered as a transparent substrate and, in such a way, it has been already used in previous work. Alternatively, here it is regarded as a slab waveguide. In particular, we have deposited upon the slab surface, covered with a nanograting, a synthetic receptor specific for bovine serum albumin (BSA), to test the proposed biosensing approach. Exploiting this different experimental configuration, we have determined how the orientation of the nanostripes forming the grating pattern, with respect to the direction of the input light (longitudinal or orthogonal), influences the biosensing performances. For example, the best limit of detection (LOD) in the BSA detection that has been obtained is equal to 23 pM. Specifically, the longitudinal configuration is characterized by two observable plasmonic phenomena, each sensitive to a different BSA concentration range, ranging from pM to µM. This aspect plays a key role in several biochemical sensing applications, where a wide working range is required.

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