Guided mode resonances and photonic crystals for biosensing and imaging

2019 ◽  
pp. 115-148 ◽  
Author(s):  
Alexander Drayton ◽  
Isabel Barth ◽  
Thomas F. Krauss
Keyword(s):  
Photonic Crystals ◽  
Guided Mode

Theory of Thermal Emissivity and Enhanced Absorption in Sub-wavelength Metallo-Dielectric Photonic Crystals

2007 ◽  
Vol 1014 ◽  
Author(s):  
Rana Biswas ◽  
Irina Puscasu ◽  
Martin Pralle ◽  
Martin McNeal ◽  
Anton Greenwald ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystals ◽  
Thermal Emission ◽  
Metal Layer ◽  
Hole Array ◽  
Enhanced Transmission ◽  
Enhanced Absorption ◽  
Guided Mode ◽  
Thermal Emissivity ◽  
Sub Wavelength

AbstractMetallo-dielectric photonic crystals are sharp thermal emitters at infrared wavelengths, and are being employed in sensors. We describe the theory of thermal emission and enhanced absorption in these photonic crystals using a scattering matrix approach, where Maxwell's equations are solved in Fourier space. A sub-wavelength hole array in a metal layer is coupled to a two-dimensional photonic crystal of the same periodicity in these metallo-dielectric photonic crystals. The sub-wavelength hole array has an enhanced transmission mode that couples to a weakly guided mode of the photonic crystal having similar modal character. The transmissive mode of the hole array is absorbed by the photonic crystal to create a sharp absorption and reflective minimum. The enhanced absorption is investigated in different lattice symmetries.

An efficient approach toward guided mode extraction in two-dimensional photonic crystals

2008 ◽  
Vol 281 (10) ◽  
pp. 2826-2833 ◽  
Author(s):  
P. Sarrafi ◽  
A. Naqavi ◽  
K. Mehrany ◽  
S. Khorasani ◽  
B. Rashidian
Keyword(s):  
Photonic Crystals ◽  
Two Dimensional ◽  
Efficient Approach ◽  
Guided Mode ◽  
Mode Extraction

scholarly journals Integration of Sub-Wavelength Nanofluidics With Photonic Crystals

2005 ◽  
Author(s):  
David Erickson ◽  
Teresa Emery ◽  
Troy Rockwood ◽  
Axel Scherer ◽  
Demetri Psaltis
Keyword(s):  
Optical Properties ◽  
Photonic Crystals ◽  
Soft Lithography ◽  
High Sensitivity ◽  
Silicon On Insulator ◽  
New Approach ◽  
Dynamic Tuning ◽  
Guided Mode ◽  
Fluidic Control ◽  
Sub Wavelength

“Optofluidics” represents the marriage of optics, optoelectronics and nanophotonics with fluidics. Such integration represents a new approach for dynamic manipulation of optical properties at length scales both greater than and smaller than the wavelength of light with applications ranging from reconfigurable photonic circuits to fluidically adaptable optics to high sensitivity bio-detection currently under development. The capabilities in terms of fluidic control, mixing, miniaturization and optical property tuning afforded by micro-, nano-fluidics combined with soft lithography based fabrication provides an ideal platform upon which to build such devices. Here we present our technique for integrating soft lithography based nanofluidics with e-beam lithography defined silicon-on-insulator photonic crystals. We demonstrate nanofluidic addressability of single, sub-wavelength, defects within the planar photonic crystal and the dynamic tuning of the guided mode. In this paper we focus on the fabrication, integration and experimental details of this work.

Simulations of Sub-wavelength Metallo-dielectric Photonic Crystals for Gas Sensing

2006 ◽  
Vol 952 ◽  
Author(s):  
Rana Biswas ◽  
Irina Puscasu ◽  
Martin Pralle ◽  
Martin McNeal ◽  
Anton Greenwald ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Photonic Crystals ◽  
Lattice Spacing ◽  
Gas Sensing ◽  
Metal Layer ◽  
Scattering Matrix ◽  
Infrared Region ◽  
Hole Array ◽  
Guided Mode ◽  
Sub Wavelength

ABSTRACTWe have simulated metallo-dielectric photonic crystals that are sharp thermal emitters at infrared wavelengths, and are being employed in gas sensors. The simulations were performed with a rigorous scattering matrix approach where Maxwell's equations are solved in Fourier space. These metallo-dielectric photonic crystals consist of a sub-wavelength hole array in a metal layer coupled to a two-dimensional photonic crystal of the same periodicity. The sub-wavelength hole array has an enhanced transmission mode that couples to a guided mode of the photonic crystal. The transmissive mode of the hole array is absorbed by the photonic crystal to create a sharp absorption and reflective minimum feature found for a range of lattice spacing. The structure thermally emits in a narrow band of wavelengths controlled by the lattice spacing that can be tuned over the infrared region. The underlying physics of this emissive device is modeled with rigorous scattering matrix simulations.

Large-Scale Nanogrooved Photonic Crystals for Label-Free Biosensing by Guided-Mode Resonance

2021 ◽  
pp. 57-72
Author(s):  
Miquel Avella-Oliver ◽  
Gabriel Sancho-Fornes ◽  
Rosa Puchades ◽  
Ángel Maquieira
Keyword(s):  
Photonic Crystals ◽  
Large Scale ◽  
Label Free ◽  
Guided Mode ◽  
Guided Mode Resonance

scholarly journals Guided-mode resonances in flexible 2D terahertz photonic crystals

Optica ◽  
2020 ◽  
Vol 7 (5) ◽  
pp. 537 ◽  
Author(s):  
Chan Kyaw ◽  
Riad Yahiaoui ◽  
Zizwe A. Chase ◽  
Viet Tran ◽  
Andrey Baydin ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Guided Mode
Sign in / Sign up

Export Citation Format

Share Document