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A novel setup is presented for ballistic imaging using an efficient ultrafast Kerr effect based optical time-gate with gating times of the order of ~0.8 picoseconds. At first, the major drawbacks of the classical non-collinear optical setup…

Optics · Physics 2015-02-12 Harsh Purwar , Saïd Idlahcen , Claude Rozé , Jean-Bernard Blaisot

We propose a collinear optical Kerr effect (OKE) based time-gate configuration with low coherence illumination source, derived from the supercontinuum (SC) generated by focusing the femtosecond laser pulses inside water. At first the…

Optics · Physics 2015-02-26 Harsh Purwar , Saïd Idlahcen , Claude Rozé , Jean-Bernard Blaisot

We present an optical Kerr effect based time-gate with the collinear incidence of the pump and probe beams at the Kerr medium, liquid carbon disulfide, for ballistic imaging of the high-pressure fuel sprays. The probe pulse used to…

Optics · Physics 2015-02-12 Harsh Purwar , Saïd Idlahcen , Claude Rozé , Jean-Bernard Blaisot

Achieving spatiotemporal control of light at subwavelength and subcycle scales is an important milestone in the development of new photonic materials and technologies. Ultrafast spatiotemporal light modulation currently relies on electronic…

Optics · Physics 2025-11-07 Claudio U. Hail , Lior Michaeli , Harry A. Atwater

The ultrafast optical Kerr effect (OKE) is widely used to investigate the structural dynamics and interactions of liquids, solutions and solids by observing their intrinsic nonlinear temporal responses through nearly-collinear four-wave…

Optics · Physics 2021-03-15 Lucas Huber , Sebastian Maehrlein , Feifan Wang , Yufeng Liu , Xiaoyang Zhu

Manipulating the structure of single photons in the ultrafast domain is enabling new quantum information processing technologies. At the picosecond timescale, quantum information can be processed before decoherence can occur. In this work,…

According to idealized models, a strong Kerr non-linearity may be used to build optical quantum gates for optical quantum information processing by inducing conditional phase shifts on quantum states. Recently, Shapiro (PRA 73, 062305…

Quantum Physics · Physics 2008-11-30 P. M. Leung , T. C. Ralph , William J. Munro , Kae Nemoto

We present a two-color Kerr microscopy system based on two electronically synchronized erbium-fiber laser oscillators with independently tunable emission energies spanning most of the visible spectrum. Combining a spatial resolution below 2…

Mesoscale and Nanoscale Physics · Physics 2021-11-03 M. Kempf , A. Schubert , R. Schwartz , T. Korn

We have performed a two-color time-resolved magneto-optical Kerr effect (MOKE) study of a ferromagnetic InMnAs/GaSb heterostructure. We observed ultrafast photo-induced changes in the MOKE signal induced by a large density of spin-polarized…

Materials Science · Physics 2007-05-23 J. Wang , G. A. Khodaparast , J. Kono , T. Slupinski , A. Oiwa , H. Munekata

We investigate the behavior of light pulse propagation in a 4-level double Lambda atomic system under condition of electromagnetically induced transparency. The Fano type interference effect and spectral hole burning appears in the the…

Optics · Physics 2013-11-28 Bakhtt A Bacha , Fazal Ghafoor , Iftikhar Ahmad

The weak nonlinear Kerr interaction between single photons and intense laser fields has been recently proposed as a basis for distributed optics-based solutions to few-qubit applications in quantum communication and computation. Here, we…

Quantum Physics · Physics 2009-11-13 Jeffrey H. Shapiro , Mohsen Razavi

We investigate nonlinear Kerr-induced coherence effect on a superluminal probing light pulse in a gain-assisted N-type 4-level atomic system via an intense monochromatic laser field. The dispersion exhibits a novel, interesting and useful…

Optics · Physics 2013-11-28 Bakht Amin Bacha , Fazal Ghafoor

Nonlinear optical interactions in nanostructures are subjects of both fundamental research and practical applications. The optical Kerr effect, a third-order nonlinear optical phenomenon, induces anisotropic changes in the refractive index…

Optics · Physics 2024-09-04 Subhajit Bej , Nikolai Tkachenko , Robert Fickler , Tapio Niemi

An ultrafast all-optical shutter is presented, based on a simple two-color two-photon absorption technique. For time-resolved luminescence measurements this shutter is an interesting alternative to the optical Kerr gate. The rejection…

Optics · Physics 2016-04-21 Marijn A. M. Versteegh , Jaap I. Dijkhuis

Thermo-optical effects cause a bifocusing of incoming beams in optical media, due to the birefringence created by a thermal lens that can resolve the incoming beams into two-component signals of different polarizations. We propose a…

Pattern Formation and Solitons · Physics 2011-05-24 Alain M. Dikande

Efficient detection of ultrafast phenomena is central to modern optical sciences, driving advances in quantum science and technology, physical chemistry, and nanophotonics. When processes occur on sub-picosecond timescales, time-resolved…

We demonstrate the potential of birefringence-based, all-optical, ultrafast conversion between the transverse modes in integrated optical waveguides by modelling the conversion process by numerically solving the multi-mode coupled nonlinear…

Using symmetry arguments and a tight-binding model, we show that for layered collinear anti- ferromagnets, magneto-optic effects can be generated and manipulated by controlling crystal symmetries through a gate voltage. This provides a…

Materials Science · Physics 2016-12-28 Nikhil Sivadas , Satoshi Okamoto , Di Xiao

We consider combining of multiple laser beams into a single near diffraction-limited beam by beam self-focusing (collapse) in a Kerr medium. The beams with the total power above critical are combined in the near field and then propagated in…

Pattern Formation and Solitons · Physics 2016-06-30 Pavel M. Lushnikov , Natalia Vladimirova

In this paper, we consider a method for implementing a quantum logic gate with photons whose wave function propagates in a one-dimensional Kerr-nonlinear photonic crystal. The photonic crystal causes the incident photons to undergo Bragg…

Quantum Physics · Physics 2011-11-09 Hiroo Azuma
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