Mask pattern transferred transient grating technique for molecular-dynamics study in solutions
We have developed a mask pattern transferred transient grating (MPT-TG) technique by using metal grating films. Transient thermal grating is generated by an ultraviolet light pattern transfer to nitro...
We have developed a mask pattern transferred transient grating (MPT-TG) technique by using metal grating films. Transient thermal grating is generated by an ultraviolet light pattern transfer to nitro...
Dramatic effects of hole transport layer on the efficiency of iridium-based organic light-emitting diodes
Electroluminescent efficiency of organic light-emitting diodes with Ir-based emitter depends strongly on the nature of the hole transport layer used. The efficiency is not correlated with the oxidatio...
Electroluminescent efficiency of organic light-emitting diodes with Ir-based emitter depends strongly on the nature of the hole transport layer used. The efficiency is not correlated with the oxidatio...
Mechanically tunable photonic crystal structure
Appl. Phys. Lett. 85, 4845 (2004); doi:10.1063/1.1823019
Issue Date: 22 November 2004
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We report a tunable nanophotonic device concept based on flexible photonic crystal, which is comprised of a periodic array of high-index dielectric material and a low-index flexible polymer. Tunability is achieved by applying mechanical force with nano-/microelectromechanical system actuators. The mechanical stress induces changes in the periodicity of the photonic crystal and consequently modifies the photonic band structure. To demonstrate the concept, we theoretically investigated the effect of mechanical stress on the anomalous refraction behavior and observed a very wide tunability in the beam propagation direction. This concept provides a means to achieve real-time, dynamic control of photonic band structure and will thus expand the utility of photonic crystal structures in advanced nanophotonic systems.
©2004 American Institute of Physics
| History: | Received 26 April 2004; accepted 23 August 2004 |
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http://link.aip.org/link/?APPLAB/85/4845/1 |
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BibSonomy
KEYWORDS and PACS
polymer films,
dielectric materials,
photonic crystals,
nanostructured materials,
photonic band gap,
internal stresses,
crystal structure,
microactuators,
refractive index
- 42.70.Qs
Photonic bandgap materials - 85.85.+j
Micro- and nano-electromechanical systems (MEMS/NEMS) and devices - 78.66.Qn
Optical properties of polymers; organic compounds (thin films) - 78.20.Ci
Optical constants including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity - 68.60.Bs
Mechanical and acoustical properties of thin films - YEAR: 2004
RELATED DATABASES
PUBLICATION DATA
0003-6951 (print)
1077-3118 (online)
AIP
REFERENCES (14)
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