Results 1 to 10 of about 9,258 (115)
Multimode interference dynamic light scattering. [PDF]
Opt Lett, 2018 When dealing with dynamic scattering systems, being able to collect strong signals while maintaining a high signal-to-noise ratio (SNR) is critical. It is well known that a spatially coherent measurement provides the largest SNR, while a partially coherent one provides better means for proper spatial averaging.
Guzman-Sepulveda JR, Dogariu A.
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Magnetically controllable multimode interference in topological photonic crystals. [PDF]
Light Sci ApplAbstractTopological photonic insulators show promise for applications in compact integrated photonic circuits due to their ability to transport light robustly through sharp bendings. The number of topological edge states relies on the difference between the bulk Chern numbers across the boundary, as dictated by the bulk edge correspondence.
Tang W, Wang M, Ma S, Chan CT, Zhang S.
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Multimodality Imaging of RNA Interference [PDF]
Current Medicinal Chemistry, 2013 The discovery of small interfering RNAs (siRNAs) and their potential to knock down virtually any gene of interest has ushered in a new era of RNA interference (RNAi). Clinical use of RNAi faces severe limitations due to inefficiency delivery of siRNA or short hairpin RNA (shRNA).
T R, Nayak, L K, Krasteva, W, Cai
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Non-Hermitian multimode interference
Optics Letters, 2020 Multimode interference (MMI) and self-imaging are important phenomena of diffractive optics with major applications in signal processing, beam shaping, and optical sensing. Such phenomena generally arise from interference of normal modes in lossless dielectric guiding structures; however, the impact of spatially inhomogeneous optical gain and loss ...
Longhi S., Feng L.
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Multimode Hong-Ou-Mandel Interference [PDF]
Physical Review Letters, 2003 We consider multimode two-photon interference at a beam splitter by photons created by spontaneous parametric down-conversion. The resulting interference pattern is shown to depend upon the transverse spatial symmetry of the pump beam. In an experiment, we employ the first-order Hermite-Gaussian modes in order to show that, by manipulating the pump ...
Walborn, S. P. +3 more
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Multimode interference photonic switches [PDF]
Optical Engineering, 2008 Photonic switches are becoming key components in advanced optical networks due to their various applications in optical communication. One of the key advantages of photonic switches is the fact that they redirect or convert light without any optical to electronic conversions and vice versa.
Al-Hetar, Abdulaziz M. +3 more
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Microcavities based on multimodal interference
Optics Express, 2007 We describe intricate cavity mode structures, that are possible in waveguide devices with two or more guided modes. The main element is interference between the scattered fields of two modes at the facets, resulting in multipole or mode cancelations.
Maes, Björn +4 more
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Multimode interference couplers
Integrated Photonics Research, 1991 Experimental results are presented on a new type of planar (Multimode Interference) coupler. Two-mode interference (TMI) couplers (Fig. la) were reported already in 1977 as an alternative to weak synchronous couplers,1 they are shorter and less sensitive to variations in the fabrication process, and thus have a potential for application without ...
Soldano, L.B. +4 more
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Wavelength independent multimode interference coupler
Optics Express, 2013 We propose an ultra-broadband multimode interference (MMI) coupler with a wavelength range exceeding the O, E, S, C, L and U optical communication bands. For the first time, the dispersion property of the MMI section is engineered using a subwavelength grating structure to mitigate wavelength dependence of the device. We present a 2 × 2 MMI design with
Maese-Novo, A. +8 more
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Adiabatic and Multimode Interference Couplers on Silicon-on-Insulator [PDF]
IEEE Photonics Technology Letters, 2006 Adiabatic and multimode interference (MMI) 3-dB couplers based on silicon-on-insulator rib waveguides were fabricated and measured. For testing purposes, pairs of identical couplers were cascaded to form Mach-Zehnder interferometers. The adiabatic couplers showed excess on-chip loss of ~0.5 dB, extinction ratio (ER) of 15-20 dB, and a wide spectral ...
Kapulainen, Markku +4 more
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