Solvent-based paste extrusion solid freeforming

X Lu, Y Lee, S Yang, Y Hao, JRG Evans… - Journal of the European …, 2010 - Elsevier
Solvent-based extrusion freeforming is capable of building complex ceramic 3D structures
and can be used in the fabrication of hard and soft tissue scaffolds, photonic crystals for …

Advanced impedance matching in photonic crystal waveguides

A Mohtashami, J Zarbakhsh, K Hingerl - Optical and quantum electronics, 2007 - Springer
We demonstrate that the dispersion of guided propagating modes in certain Photonic Crystal
Waveguides (PCWGs) can be kept constant when the waveguide's structure changes along …

Local dispersion of guiding modes in photonic crystal waveguide interfaces and hetero-structures

B Dastmalchi, R Kheradmand, A Hamidipour… - Progress In …, 2010 - jpier.org
Recently, we have introduced a numerical method for calculating local dispersion of
arbitrary shaped optical waveguides, which is based on the Finite-Difference Time-domain …

Application of LDOS and multipole expansion technique in optimization of photonic crystal designs

A Mazaheri, HR Fallah, J Zarbakhsh - Optical and Quantum Electronics, 2013 - Springer
We introduced a procedure of using local density of states for increasing the quality factor
and Purcell factor of photonic crystal cavities. We used multipole expansion method for …

Method of calculating local dispersion in arbitrary photonic crystal waveguides

B Dastmalchi, A Mohtashami, K Hingerl, J Zarbakhsh - Optics letters, 2007 - opg.optica.org
We introduce a novel method to calculate the local dispersion relation in photonic crystal
waveguides, based on the finite-difference time-domain simulation and filter diagonalization …

Photonic crystal nano-cavities for enhancing zero-phonon line emission from nitrogen-vacancy centers in diamond

Q Liu, Z Ouyang, S Albin - Optics & Laser Technology, 2013 - Elsevier
This paper presents designs of nano-cavity structures based on a photonic crystal in
diamond in order to achieve high-efficiency collection of zero-phonon line (ZPL) photons …

Mode tuning in photonic crystal cavities using geometry of first neighboring layer

A Mazaheri, HR Fallah, J Zarbakhsh - Journal of Nonlinear Optical …, 2012 - World Scientific
The relation between position of optical source and excitation of photonic crystal cavity
modes are investigated. For multimode cavities, the source position considerably affects the …

Optimization of quality factor in photonic crystal cavities through finite difference time domain and multipole expansion technique

A Mazaheri, A Hamidipour, R Jannesary… - Journal of Nonlinear …, 2013 - World Scientific
Local density of photonic states calculation based on multipole expansion method is a
powerful tool for studying spontaneous emission and calculation of photon confinement in …

Conformal transformation of photonic crystal structures

M Zocca, M Langelaar… - Photonic and Phononic …, 2013 - spiedigitallibrary.org
In this paper we present an algorithm that maps a reference diffracting structure along an
arbitrarily curved boundary. The proposed algorithm produces deformed photonic crystal …

Study of local dispersion in photonic crystal waveguide interfaces and hetero-structures

B Dastmalchi, R Kheradmand… - … and Devices VIII, 2008 - spiedigitallibrary.org
We have recently introduced a novel method to calculate local dispersion relation based on
the Finite-Difference Time-domain and filter diagonalization method, which is suitable for …