Results 91 to 100 of about 890,829 (194)

Purcell factor enhanced scattering efficiency in optical microcavities [PDF]

open access: yes, 2005
Scattering processes in an optical microcavity are investigated for the case of silicon nanocrystals embedded in an ultra-high Q toroid microcavity. Using a novel measurement technique based on the observable mode-splitting, we demonstrate that light ...
Kalkman, J.   +4 more
core   +1 more source

Enhancement-mode ion-implanted InP f.e.t.s

open access: yesElectronics Letters, 1978
Planar enhancement-mode InP f.e.t.s have been fabricated through the use of ion implantation and subsequent electron-beam lithography. Noise figures of 3.2 and 2.6 dB were achieved at 8 GHz with associated gains of 6.4 and 4.7 dB, respectively.
K.R. Gleason   +3 more
openaire   +1 more source

High Performance Flip-Structure Enhancement-Mode HEMT with Face-to-Face Double Gates. [PDF]

open access: yesNanoscale Res Lett, 2022
Deng S   +8 more
europepmc   +1 more source

Efficient Polarization-Diversity Grating Coupler With Multipolar Radiation Mode Enhancement

open access: yesIEEE Photonics Journal
Two-dimensional (2D) diffraction gratings offer a polarization-independent coupling solution between the planar photonic chips and optical fibers, with advantages including placement flexibility, ease of fabrication, and tolerance to alignment errors. In
Wu Zhou   +4 more
doaj   +1 more source

Enhancing Long-Haul 15-Mode Fiber Performance: Mode Permutation for Reduced Modal Dispersion

open access: yesJournal of Lightwave Technology
We explore the efficacy of mode permutation to mitigate the impact of modal dispersion in a 15-mode fiber link for long-haul space-division multiplexed transmission. By introducing strong coupling between all the fiber modes, mode permutation reduces the growth rate of the link's intensity impulse response (IIR) with transmission distance, yielding a ...
Giammarco Di Sciullo   +17 more
openaire   +3 more sources

Cost-effective device for locating and circumscribing superficial tumors with contrast enhancement and fluorescence quantification

open access: yesPhotodiagnosis and Photodynamic Therapy
Background: Two Bispectral contrast enhancement approaches for the fluorescence diagnosis with chlorine-e6 and a wide field-of-view imaging system with fluorescence excitation at 405 nm and time-resolved background suppression were analyzed and compared.
A.M. Udeneev   +8 more
doaj   +1 more source

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