Results 41 to 50 of about 297,617 (273)
Ultrafast Plasmonic Control of Second Harmonic Generation
, 2016 Efficient frequency conversion techniques are crucial to the development of plasmonic metasurfaces for information processing and signal modulation.
Avanesyan, Sergey M. +5 more
core +2 more sources
Cascading nonlinearities in an organic single crystal core fiber: The Cerenkov regime [PDF]
, 1994 The large nonlinear phase shifts imparted to the fundamental beam during Cerenkov second harmonic generation (SHG) in a DAN, 4-(N,N-dimethylamino)-3-acetamidonitrobenzene, single crystal core fiber are explained and modelled numerically.
Kim, Dug Y. +6 more
core +3 more sources
Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
wiley +1 more source
Second harmonic generation in graphene [PDF]
JETP Letters, 2011 5 pages, 3 ...
openaire +2 more sources
FEBS Letters, EarlyView.The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li +2 more
wiley +1 more source
Optical second harmonic generation in encapsulated single-layer InSe
AIP Advances, 2018 We report the observation of optical second harmonic generation (SHG) in single-layer indium selenide (InSe). We measure a second harmonic signal of > 103 cts/s under nonresonant excitation using a home-built confocal microscope and a standard pulsed ...
Nadine Leisgang +6 more
doaj +1 more source
Conservation laws of generalized angular momentum by second-harmonic generation in underdense plasmas harmonic generation [PDF]
EPJ Web of ConferencesLight beams exhibit two intrinsic quantized degrees of freedom: spin angular momentum (SAM) and orbital angular momentum (OAM) whose manipulation enables precise control over the topological characteristics of electromagnetic fields. Recently, structured
Voisine Alexis +5 more
doaj +1 more source
Second-harmonic generation of temporally low-coherence light
APL Photonics, 2020 In this Letter, we study the second-harmonic (SH) generation of temporally low-coherence light using the statistical optics method. By introducing the statistical characteristics of low-coherence light into the nonlinear coupled wave equation, we predict
Xiaohui Zhao +11 more
doaj +1 more source
Interlayer exciton mediated second harmonic generation in bilayer MoS2
Nature Communications, 2021 Efficient second-harmonic generation (SHG) occurs for crystals with broken inversion symmetry, such as transition metal dichalcogenide monolayers. Here the authors show SHG tuning in bilayer MoS2 - an inversion-symmetric crystal - mediated by interlayer ...
Shivangi Shree +12 more
doaj +1 more source
Stacking-symmetry governed second harmonic generation in graphene trilayers [PDF]
, 2018 Crystal symmetry plays a central role in governing a wide range of fundamental physical phenomena. One example is the nonlinear optical second harmonic generation (SHG), which requires inversion symmetry breaking. Here we report a unique stacking-induced
Huang, Di +6 more
core +2 more sources