Multimode Phonon Lasing via Self‐Induced Optical Coherent Pumping
A silicon optomechanical nanobeam generates self‐sustained phonon lasing in multiple competing mechanical modes via self‐pulsing, an intrinsic optical modulation arising from cavity nonlinearity. This self‐organized mechanism enables robust multi‐frequency operation spanning periodic, quasi‐periodic, and chaotic regimes without external modulation. The
David Alonso Tomás +5 more
wiley +1 more source
Speckle-correlation imaging through a kaleidoscopic multimode fiber. [PDF]
Bouchet D +5 more
europepmc +1 more source
Integrated Photonic Modulator Circuit With Programmable Intensity and Phase Modulation Response
A platform‐agnostic programmable modulation circuit is introduced to enable tunable and universal optimization of integrated photonic modulators. By flexibly controlling carrier amplitude and phase, the approach adapts to diverse device characteristics without structural redesign.
Hong Deng +3 more
wiley +1 more source
Efficient dispersion modeling in optical multimode fiber. [PDF]
Lee SY, Parot VJ, Bouma BE, Villiger M.
europepmc +1 more source
High‐Efficiency Graphene‐Silicon Slot‐Waveguide Microring Modulator at 1.5 and 2 µm Wavelength Bands
E/O modulators typically face a trade‐off between bandwidth and modulation efficiency. An integrated E/O modulator is presented that simultaneously achieves wideband, large bandwidth, and high modulation efficiency operation by embedding a partially overlapped double‐layer graphene on a compact silicon slot‐waveguide microring resonator.
Chao Luan +4 more
wiley +1 more source
Optical Multimode Fiber-Based Pipe Leakage Sensor Using Speckle Pattern Analysis. [PDF]
Philosof J +4 more
europepmc +1 more source
Optical limiting in a nanomaterial‐polymer saturable absorber is harnessed as a functional intracavity degree of freedom, where pump‐controlled photothermal loss continuously reshapes the gain spectrum of rare‐earth ions, enabling non‐mechanical spectral engineering in an ultrafast fiber laser.
Maolin Dai +4 more
wiley +1 more source
Information distribution on regions of speckle patterns for imaging of multimode fiber. [PDF]
Liu S, Sun Y, Liu W, Xiao F, Song H.
europepmc +1 more source
Exploding Bridgewire (EBW) Detonators: An Example of Synergistic Multiphysics
ABSTRACT Exploding bridgewire (EBW) detonators are highly temporally reproducible explosive devices that require the rapid discharge of a high‐voltage capacitance to operate and so are immune to most of the accidental hazards associated with traditional electric detonators.
P. J. Rae +3 more
wiley +1 more source
Pressure stimulus study on acupuncture points with multi-channel multimode-fiber diffuse speckle contrast analysis (MMF-DSCA). [PDF]
Park JY, Choi G, Lee K.
europepmc +1 more source

