Simplified Near-Degenerate Four-Wave-Mixing Microscopy
Four-wave-mixing microscopy is widely researched in both biology and medicine. In this paper, we present a simplified near-degenerate four-wave-mixing microscopy (SNDFWM). An ultra-steep long-pass filter is utilized to produce an ultra-steep edge on the spectrum of a femtosecond pulse, and a super-sensitive four-wave-mixing …
Degenerate four-wave mixing in colloidal gold as a …
Time-resolved degenerate four-wave mixing experiments on a colloidal solution of 50-nm gold particles in acetone, using a high-repetition-rate laser source, are presented.
Wavefront shaping with nonlinear four-wave mixing
In our proposed framework as shown in Fig. 1, the degenerate nonlinear four-wave mixing (FWM) process occurs within a BK-7 glass slab of 1 mm thickness via third-order nonlinearity susceptibility ...
Cascaded degenerate four-wave mixing generation in thin …
Cascaded degenerate four-wave mixing generation in thin-film lithium tantalate microdisk cavity Xiongshuo Yan, Miao Xue, Tingge Yuan, Jiangwei Wu, Rui Ge, Yuping Chen, and Xianfeng Chen Phys. Rev. Applied 21, …
Transient effects in degenerate four-wave mixing in …
The transient behavior of degenerate four-wave mixing (DFWM) in a three-level saturable absorber is analyzed and verified experimentally. A sharp peak of phase-conjugated reflectivity is predicted and observed at high pump intensities for pulsed beams. The influence of the time-dependent behavior of the conjugate wave signal on results of …
Polarization-selective four-wave mixing in a degenerate …
The four-wave mixing signal is induced by two counter-propagating laser beams in a degenerate multi-level atomic system, involving the (F_g=3 rightarrow F_e …
Giant electron-mediated phononic nonlinearity in …
Here we focus on cascaded degenerate four-wave mixing interactions where the input and output frequencies are close together.
Resonant Degenerate Four-Wave Mixing at the Defect …
When two pulses, one narrowband pump pulse centered at 800 nm and one supercontinuum pulse with bandwidth from 800–1100 nm, are incident on a perovskite …
Si Metasurface Supporting Multiple Quasi-BICs for Degenerate Four-Wave
By pumping two of these resonances, the nonlinear process of degenerate four-wave mixing is experimentally realized. By comparing the nonlinear response with that of an unpatterned silicon film, the near-field enhancement inside the nanostructured dielectric is revealed.
Detection of Trace Molecular Species Using Degenerate Four-Wave Mixing …
The strengths and limitations of these spectroscopic techniques often determine the viability of scientific investigations. The unique properties of degenerate four-wave mixing, a nonlinear optical technique, have recently been found to provide powerful capabilities for a wide range of applications.
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Learn how four-wave-mixing signals reveal the quasienergy band structures and dynamical localization of a semiconductor superlattice driven by electric fields.
Phys. Rev. Applied 17, 034064 (2022)
Phys. Rev. Applied 17, 034064 (2022) - Degenerate Parametric ...
Amplified reflection, phase conjugation, and oscillation in degenerate …
A number of new optical effects that result from degenerate four-wave mixing in transparent optical media are proposed and analyzed. The applications are relevant to time-reversed (phase-conjugated) propagation as well as …
Four-wave Mixing – FWM, optical fiber, nonlinearity
In the explanation above, it was assumed that four different frequency components interact via four-wave mixing. This is called non-degenerate four-wave mixing. However, there is also the possibility of degenerate four-wave mixing, where two of the four frequencies coincide. For …
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Physical Review Link Manager is a tool that allows you to access and download articles from Physical Review Applied, a journal that publishes cutting-edge research on the interface between physics and engineering. You can find articles on topics such as quantum physics, materials science, optics, acoustics, and robotics, and explore the effects of …
Highly efficient THz four-wave mixing in doped silicon
Degenerate four-wave mixing provides a direct measure of the third-order non-linear sheet susceptibility χ(3)L (where L represents the material thickness) as well …
Degenerate four-wave mixing in photonic crystal resonators
We investigate degenerate four-wave mixing in ring resonators, modified by a photonic-crystal nanostructure to arbitrarily control nonlinear phase-matching. We demonstrate …
Low-noise mid-IR upconversion detector for improved IR-degenerate …
The two detectors are compared for the detection of a coherent degenerate four-wave mixing (DFWM) signal in the mid-infrared, and applied to measure trace-level acetylene in a gas flow at atmospheric pressure, probing its …
Degenerate Four-Wave Mixing in a Multiresonant …
Broadband visible-near infrared and deep ultraviolet generation by four-wave mixing and high-order stimulated Raman scattering from the hybrid metasurfaces of …
Wideband and low-error microwave frequency measurement using degenerate
About Optics & Photonics Topics Optica Publishing Group developed the Optics and Photonics Topics to help organize its diverse content more accurately by topic area.
Degenerate four-wave mixing in photonic crystal resonators
We investigate degenerate four-wave mixing in ring resonators, modified by a photonic-crystal nanostructure to arbitrarily control nonlinear phase-matching. We demonstrate efficient and broadband optical parametric oscillation, laser-wavelength translation, and parametric amplification.
Degenerate Four-Wave Mixing in a Multiresonant …
Dielectric nanoantennas excited at Mie resonances are becoming suitable candidates for nonlinear optical effects due to their large intrinsic nonlinearity and capability to highly confine electromagnetic fields within subwavelength volumes. In this work, we show that a single Ge nanodisk, recently demonstrated as an efficient source of third …
Single-scan polarization-resolved degenerate four-wave mixing
15) In our previous work, we achieved single-scan polarization-resolved degenerate four-wave mixing (DFWM) by taking advantage of the nonuniform polarization distribution of vector optical beams.
Degenerate Four Wave Mixing
Degenerate four-wave mixing (DFWM) is a χ(3) technique where all input and output frequencies are identical. Because it does not involve the generation of light at new …
Degenerate four-wave mixing experiments in Methyl green …
Degenerate four-wave mixing (DFWM) was performed in Methyl green dye-doped gelatin films using continuous-wave laser radiation (λ = 633 nm) generated by a He–Ne laser of total power 35 mW. Various parameters which influence the phase-conjugate (PC) signal during the DFWM process were studied.
What is non-degenerate Four Wave Mixing?
Image Source: Wikipedia page on Four-Wave Mixing. Energy level diagram for a non-degenerate four-wave mixing process. The top energy level could be a real atomic or molecular level (resonant four-wave mixing) or a …
Four Wave Mixing in Silicon Photonics | SpringerLink
The degenerate FWM was originally called three wave mixing as only three distinct frequencies are involved in the nonlinear process. The Stokes and anti-Stokes bands are often called the signal and idler waves.
Simplified Near-Degenerate Four-Wave-Mixing Microscopy
Four-wave-mixing microscopy is widely researched in both biology and medicine. In this paper, we present a simplified near-degenerate four-wave-mixing microscopy (SNDFWM). An ultra-steep long-pass filter is utilized to produce an ultra-steep edge on the spectrum of a femtosecond pulse, and a super-s …
Theory of degenerate four-wave mixing in resonant …
The theory of polarised light phase conjugation (PC) in non-degenerate four-wave mixing in a resonant medium has been developed in the irreducible tensorial formalism. The theory is applied to a wave … Expand
Saturation effects in degenerate four-wave mixing on …
An analytic nonperturbative treatment of degenerate four-wave mixing is presented to study Zeeman-coherence effects in phase conjugation. The counterpropagating pump waves are taken to be orthogonally circularly polarized and interact with different Zeeman sublevels. The nonlinear medium is modeled in terms of a homogeneously broadened, …