Results 11 to 20 of about 1,237,711 (248)
Configurable Modulator for Pure Phase Modulation [PDF]
2019 Photonics North (PN), 2019 We present a configurable silicon modulator for pure phase modulation, implemented as a Mach-Zehnder interferometer with a PN carrier depletion modulator (CDM) and tunable couplers. The spurious intensity modulation introduced by the CDM is compensated by tuning the splitting ratios of the couplers and the phase delay between the arms.
Deng, Hong, Bogaerts, Wim
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Interfaces of Modulated Phases [PDF]
Physical Review Letters, 1997 Numerically minimizing a continuous free-energy functional which yields several modulated phases, we obtain the order-parameter profiles and interfacial free energies of symmetric and non-symmetric tilt boundaries within the lamellar phase, and of interfaces between coexisting lamellar, hexagonal, and disordered phases.
David Andelman +2 more
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Irrotational Nanobricks Based High-Efficiency Polarization-Independence Metasurfaces
IEEE Photonics Journal, 2020 The polarization-independence optical metasurface has attracted great interests due to breaking the polarization limitations. In general, polarization-independence characteristics of metasurface almost always originates from the polarization-independence
Wei Wang +5 more
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Deep phase modulation interferometry [PDF]
Optics Express, 2010 We have developed a method to equip homodyne interferometers with the capability to operate with constant high sensitivity over many fringes for continuous real-time tracking. The method can be considered as an extension of the "J_1...J_4" methods, and its enhancement to deliver very sensitive angular measurements through Differential Wavefront Sensing
Heinzel, G. +5 more
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Frontiers in Materials, 2021 The technique of sound insulation has a wide range of potential applications in environment noise control and architectural acoustics. The rapid development of acoustic artificial materials has provided alternative solutions to design sound insulation ...
Jia-he Chen +10 more
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Large Phase-by-Phase Modulations in Atomic Interfaces [PDF]
Physical Review Letters, 2015 Phase-resonant closed-loop optical transitions can be engineered to achieve broadly tunable light phase shifts. Such a novel phase-by-phase control mechanism does not require a cavity and is illustrated here for an atomic interface where a classical light pulse undergoes radian level phase modulations all-optically controllable over a few micron scale.
Artoni M, Zavatta A
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Photonics, 2023 Controllable surface plasmonic bending beams (SPBs) with propagating along bending curves have a wide range of applications in the fields of fiber sensors, optical trapping, and micro-nano manipulations.
Hang Zhang +4 more
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Multifrequency Phase and Modulation Fluorometry [PDF]
Annual Review of Biophysics and Bioengineering, 1984 Ann. Rev. Biophys. Bioeng. 1984. 13: 105-24 MULTIFREQUENCY PHASE AND MODULATION FLUOROMETRY1 Enrico Gratton Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 David M. Jameson Department of Pharmacology, The University of Texas Health Science Center at Dallas, Dallas, Texas 75235 Robert D.
Gratton, E, Jameson, DM, Hall, RD
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Frontiers in Materials, 2022 Terahertz metasurface with digital, programmable control recently gained considerable attention for its potential applications in high-speed imaging, nondestructive sensing, and wireless communication.
Chenxi Liu +4 more
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Study of the Modulation Schemes in the Hybrid Three-Phase Multilevel Inverter
Eletrônica de Potência, 2017 This work proposes and analyzes modulation strategies for a hybrid three- phase multilevel inverter, which employs two different topologies in a cascade connection, a three-phase Neutral Point Clamped (NPC) converter and single- phase half-bridge ...
Marcos Vinicius Bressan +2 more
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