Topic
Four-wave mixing
About: Four-wave mixing is a research topic. Over the lifetime, 7530 publications have been published within this topic receiving 112702 citations.
Papers published on a yearly basis
Papers
More filters
TL;DR: This new light source is applied to time-resolved photoelectron imaging of carbon disulfide (CS₂) and the cross-correlation between 198 and 159 nm pulses of 18 fs is achieved without dispersion compensation.
Abstract: Sub-20 fs pulses of the third, fourth, and fifth harmonics of a Ti:sapphire laser are simultaneously generated using cascaded four-wave mixing in filamentation propagation of the fundamental frequency and the second harmonic pulses in Ne gas. Reflective optics under vacuum are employed after the four-wave mixing to minimize material dispersion of the optical pulses. The cross-correlation between 198 and 159 nm pulses of 18 fs is achieved without dispersion compensation. This new light source is applied to time-resolved photoelectron imaging of carbon disulfide (CS2).
35 citations
TL;DR: Two-photon fluorescence is the most important multiphoton (ie nonlinear) microscopy technique for cell imaging where the biomolecules of interest are labelled with fluorophores, which are optically excited via simultaneous absorption of two photons.
Abstract: By detecting the transient four-wave mixing from gold nanoparticles in resonance with their surface plasmon, we demonstrate a multiphoton imaging modality suited for cell microscopy. Four-wave mixing is measured free from background using a three-beam excitation geometry and heterodyne detection. We achieve a spatial resolution of 140 nm in-plane and 470 nm in the axial direction, surpassing the one-photon diffraction limit. With this technique, high-contrast photostable imaging of Golgi structures is demonstrated in HepG2 cells labeled with gold nanoparticles of 10 nm and 5 nm diameter.
35 citations
TL;DR: In this paper, the basic principles of four-wave mixing are reviewed, and the coupling between light waves and material excitational waves is discussed in the form of a dynamic grating that would coherently scatter the incoming radiation.
Abstract: The basic principles of four-wave mixing are reviewed. Emphasis is on the coupling between light waves and material excitational waves. Only cases where material excitations are excited by optical mixing of input waves are considered. The material excitations appear in the form of a dynamic grating that would coherently scatter the incoming radiation. Probing of the dynamic grating allows the deduction of information about the material excitations.
35 citations
TL;DR: In this paper, degenerate four-wave mixing studies of a set of new μ-oxo dimeric iron (III) phthalocyanine compounds excited by 532 nm picosecond pulses are reported.
35 citations
TL;DR: The observation of cw backward-wave generation using degenerate four-wave mixing in a nonresonant medium with a pump power of only 6 mW has been observed, in reasonable agreement with theoretical predictions.
Abstract: We report on the observation of cw backward-wave generation using degenerate four-wave mixing in a nonresonant medium. The interaction took place inside a 3-m-long CS2-filled 4-µm i.d. optical fiber. With a pump power of only 6 mW inside the fiber, a backward-wave conversion efficiency of 0.45% has been observed, which is in reasonable agreement with theoretical predictions.
35 citations