Results 281 to 290 of about 11,595,150 (357)

Mechanism for Optical Enhancement and Suppression of Fluorescence

The Journal of Physical Chemistry A, 2009
When fluorescence from electronically excited states follows the absorption of radiation, the emission spectrum is often a key to identification of the excited species. It now emerges that passing off-resonant laser light through such an electronically excited system may enhance or suppress the fluorescent emission.
Bradshaw, David S., Andrews, David L.
openaire   +4 more sources

Optical Enhancement of Indirect Bandgap 2D Transition Metal Dichalcogenides for Multi‐Functional Optoelectronic Sensors

Advances in Materials, 2023
The unique electrical and optical properties of transition metal dichalcogenides (TMDs) make them attractive nanomaterials for optoelectronic applications, especially optical sensors.
R. Dutta, Arindam Bala, Anamika Sen, Michael Spinazze, Heekyeong Park, W. Choi, Y. Yoon, Sunkook Kim   +7 more
semanticscholar   +1 more source

Helicity‐Preserving Metasurfaces for Magneto‐Optical Enhancement in Ferromagnetic [Pt/Co]N Films

Advanced Optical Materials, 2020
All‐optical control and detection of magnetic states for high‐density recording necessitate nanophotonic approaches to amplify local light intensity below the diffraction limit.
J. Abendroth, Michelle L Solomon, D. Barton, M. E. El Hadri, E. Fullerton, J. Dionne   +5 more
semanticscholar   +1 more source

Optical Enhancement Films

Handbook of Visual Display Technology, 2012
G. Boyd
openaire   +2 more sources

Enantiospecific Optical Enhancement of Chiral Sensing and Separation with Dielectric Metasurfaces

ACS Photonics, 2019
Circularly polarized light (CPL) exhibits an enantioselective interaction with chiral molecules, providing a pathway toward all-optical chiral resolution.
Michelle L Solomon, Jack Hu, M. Lawrence, A. García‐Etxarri, J. Dionne   +4 more
semanticscholar   +1 more source

Tip-enhanced optical spectroscopy

Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 2004
Spectroscopic methods with high spatial resolution are essential for understanding the physical and chemical properties of nanoscale materials including biological proteins, quantum structures and nanocomposite materials. In this paper, we describe microscopic techniques which rely on the enhanced electric field near a sharp, laser-irradiated metal tip.
Achim, Hartschuh, Michael R, Beversluis, Alexandre, Bouhelier, Lukas, Novotny   +3 more
openaire   +2 more sources

Light with enhanced optical chirality

Optics Letters, 2012
Tang and Cohen [Phys. Rev. Lett.104, 163901 (2010)] recently demonstrated a scheme to enhance the chiral response of molecules, which relies on the use of circularly polarized light in a standing wave configuration. Here we show a new type of light that possesses orbital angular momentum and enhanced chiral response.
Rosales-Guzman C., Volke-Sepulveda K., Torres J.P.   +2 more
openaire   +2 more sources

Extraordinary Optical Transmission Enhanced by Nanofocusing

Nano Letters, 2010
We demonstrate that the phenomenon of extraordinary optical transmission (EOT) through perforated metal films can be further boosted up by utilizing nanofocusing of radiation in tapered slits. For one-dimensional arrays of tapered slits in optically thick suspended gold films, we show that the maximum transmission at resonance is achieved for taper ...
Søndergaard, T., Bozhevolnyi, Sergey I., Novikov, Sergey M., Beermann, Jonas, Deavux, E., Ebbesen, T.   +5 more
openaire   +2 more sources

Optical CDMA enhanced by nonlinear optics

2010 12th International Conference on Transparent Optical Networks, 2010
Intended for the next generation of optical access networks, OCDMA is of great interest to meet the demand of increasing the number of users per access fiber, especially as spectral phase coding increases its performance in the optical domain. This, however, requires handling broad spectra and short pulses, which are best dealt with using opto ...
Ware C., Cordette S., Lepers C., Fsaifes I., Tonello A., Couderc V., Douay M., Kibler B., Finot C., Millot G.   +9 more
openaire   +1 more source

Enhancing optical CDMA

2009 11th International Conference on Transparent Optical Networks, 2009
The use of spread spectrum technology continues to be of interest in optical communication networks. Fiber-optic systems offer access to large bandwidth and ultra-high signal processing speeds are possible in the optical medium. Optical code-division multiple-access (O-CDMA) is therefore evolving into a promising candidate for next-generation broadband
M.S. Leeson, K. Cui, E. L. Hines
openaire   +1 more source