Specific features of light propagation in periodic structures with natural and electric-field-induced anisotropy

2002 ◽  
Vol 93 (6) ◽  
pp. 908-912 ◽  
Author(s):  
S. N. Kurilkina ◽  
M. V. Shuba
Keyword(s):  
Electric Field ◽  
Light Propagation ◽  
Periodic Structures ◽  
Induced Anisotropy

Optimized Nano-Slot Silicon Waveguide Structures for Optical Sensing Applications

2013 ◽  
Vol 832 ◽  
pp. 212-217 ◽  
Author(s):  
N. Aina C. Manaf ◽  
Mohd Hanapiah M. Yusoff ◽  
M. Kamil Abd-Rahman
Keyword(s):  
Electric Field ◽  
Light Propagation ◽  
Optical Sensing ◽  
Silicon Waveguides ◽  
Silicon Waveguide ◽  
Sensing Applications ◽  
Operating Wavelength ◽  
Slot Waveguides

In this paper, an investigation of optimized vertical and non-vertical nano-slot silicon waveguides with different cover media (cladding) is presented. The mode properties and light confining effects for both of these slot waveguides geometry are investigated at operating wavelength of 1550nm. Light propagation of waveguide modal profiles for electric field and intensity of such slot waveguides are also presented.

scholarly journals Waveguide amplification of dye fluorescece in NLC

2018 ◽  
Vol 10 (4) ◽  
pp. 106
Author(s):  
Nikolay M. Shtykov ◽  
Serguei P. Palto ◽  
Boris A. Umanskii ◽  
Dmitry O. Rybakov ◽  
Ivan V. Simdyankin
Keyword(s):  
Liquid Crystal ◽  
Light Propagation ◽  
Optical Pumping ◽  
Periodic Structures ◽  
Wave Theory ◽  
Distributed Feedback ◽  
Research Network ◽  
Liquid Crystal Layer ◽  
Planar Layer ◽  
Uniform Liquid

The amplification of spontaneous fluorescence in a planar layer of a nematic liquid crystal doped with a DCM dye is experimentally studied in a waveguide mode of light propagation. The optical pumping threshold of the superfluorescence is 0.65 MW/cm2. The gain value reaches 0.0014 μm-1 at a pumping intensity of 1.38 MW/cm2. Full Text: PDF ReferencesLiquid Crystal Microlasers, Eds. L. M. Blinov, R. Bartolino (Kerala India, Transworld Research Network 2010). DirectLink H. Kogelnik, C. V. Shank, "Coupled‐Wave Theory of Distributed Feedback Lasers", J. Appl. Phys. 43, 2327 (1972). CrossRef I. P. Il'chishin, E. A. Tihonov, V. G. Tishchenko, M. T. Shpak, "Generation of a tunable radiation by impurity cholesteric liquid crystals", JETP Lett. 32, 25 (1980). DirectLink A. Yariv, M. Nakamura, "Periodic structures for integrated optics", IEEE Quant. Electr. 13, 233 (1977). CrossRef N. M. Shtykov, M. I. Barnik, L. M. Blinov B. A. Umanskii, S, P. Palto, "Amplification of the emission of a liquid-crystal microlaser by means of a uniform liquid-crystal layer", JETP Lett. 85, 602 (2007). CrossRef

scholarly journals The Role of Periodic Structures in Light Harvesting

Plants ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 1967
Author(s):  
Eugene Bukhanov ◽  
Alexandr V. Shabanov ◽  
Mikhail N. Volochaev ◽  
Svetlana A. Pyatina
Keyword(s):  
Light Propagation ◽  
Periodic Structures ◽  
Spectral Characteristics ◽  
Visible Spectral Range ◽  
Ordered Structure ◽  
Plant Leaves ◽  
Long Period ◽  
Spectrum Area ◽  
Photon States

The features of light propagation in plant leaves depend on the long-period ordering in chloroplasts and the spectral characteristics of pigments. This work demonstrates a method of determining the hidden ordered structure. Transmission spectra have been determined using transfer matrix method. A band gap was found in the visible spectral range. The effective refractive index and dispersion in the absorption spectrum area of chlorophyll were taken into account to show that the density of photon states increases, while the spectrum shifts towards the wavelength range of effective photosynthesis.

Electric-field-induced anisotropy of excitonic optical properties in semiconductor quantum dots

2003 ◽  
Vol 94 (1) ◽  
pp. 342-347 ◽  
Author(s):  
H. Gotoh ◽  
H. Kamada ◽  
T. Saitoh ◽  
H. Ando ◽  
J. Temmyo
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Electric Field ◽  
Semiconductor Quantum Dots ◽  
Induced Anisotropy

Electric field induced anisotropy modification in (Ga,Mn)As: A strategy for the precessional switching of the magnetization

2010 ◽  
Vol 96 (14) ◽  
pp. 142504 ◽  
Author(s):  
P. Balestriere ◽  
T. Devolder ◽  
J. Wunderlich ◽  
C. Chappert
Keyword(s):  
Electric Field ◽  
Induced Anisotropy ◽  
Precessional Switching
Sign in / Sign up

Export Citation Format

Share Document