The circular Bragg phenomenon

M Faryad, A Lakhtakia - Advances in Optics and Photonics, 2014 - opg.optica.org
Exhibited by structurally chiral materials—such as Reusch piles, cholesteric liquid crystals
(CLCs), and chiral sculptured thin films (STFs)—due to their helical nonhomogeneity along a …

[图书][B] Sculptured thin films: Nanoengineered morphology and optics

A Lakhtakia, R Messier - 2005 - books.google.com
Sculptured thin films (STFs) are a class of nanoengineered materials with properties that can
be designed and realized in a controllable manner using physical vapor deposition. This text …

Resilience of circular-polarization-state-sensitive reflection against morphological disorder in chiral structures

A Lakhtakia - Journal of Nanophotonics, 2024 - spiedigitallibrary.org
Morphological disorder is commonplace in bioworld structures, as exemplified by the
layered helical structures in the exocuticle in many beetle species. Circular-polarization …

Chiral sculptured thin films for circular polarization of mid-wavelength infrared light

V Vepachedu, A Lakhtakia - Applied optics, 2018 - opg.optica.org
Being an assembly of identical upright helices, a chiral sculptured thin film (CSTF) exhibits
the circular Bragg phenomenon and can therefore be used as a circular polarization filter in …

Multiple Bragg regimes exhibited by a chiral sculptured thin film half-space on axial excitation

J Wang, A Lakhtakia, JB Geddes III - Optik, 2002 - Elsevier
Axially excited chiral sculptured thin films (STFs) are shown to display the circular Bragg
phenomenon in more than one wavelength-regime, owing to the dispersion inherent in their …

Coupling of Rayleigh-Wood anomalies and the circular Bragg phenomenon in slanted chiral sculptured thin films

F Wang, A Lakhtakia, R Messier - The European Physical Journal …, 2002 - cambridge.org
Slanted chiral sculptured thin films (STFs) are introduced as nano-engineered materials that
are effectively periodic in two orthogonal directions. Their periodicities normal and parallel to …

Quantification of optical pulsed-plane-wave-shaping by chiral sculptured thin films

JB Geddes III, A Lakhtakia - Journal of Modern Optics, 2006 - Taylor & Francis
The durations and average speeds of ultrashort optical pulses transmitted through chiral
sculptured thin films (STFs) were calculated using a finite-difference time-domain algorithm …

Effects of carrier phase on reflection of optical narrow-extent pulses from axially excited chiral sculptured thin films

JB Geddes III, A Lakhtakia - Optics communications, 2003 - Elsevier
Using a numerical time-domain method, we studied the reflection and refraction of optical
narrow-extent pulses by linear and cubically nonlinear chiral sculptured thin films (STFs) …

Swamping of circular Bragg phenomenon and shaping of videopulses

JB Geddes III, A Lakhtakia - Microwave and Optical …, 2007 - Wiley Online Library
We studied the durations and average speeds of videopulses transmitted through chiral
sculptured thin films using a finite‐difference algorithm. The chiral STF was either linear or …

Towards shaping of pulsed plane waves in the time domain via chiral sculptured thin films

JB Geddes III - Frontiers in Optical Technology: Materials and …, 2006 - books.google.com
We review our investigations concerning the propagation of ultrashort optical pulsed plane
waves across chiral sculptured thin films (STFs) in the time domain. The phenomenon of …