ArticleOptics letters2014
Femtosecond pulse shaping enables detection of optical Kerr-effect (OKE) dynamics for molecular imaging.
Article in Optics letters, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Coherently broadened, high-repetition-rate laser for stimulated Raman scattering-spectroscopic optical coherence tomography.Optics letters · 2019Article
- Compressed supercontinuum probe for transient absorption microscopy.Optics letters · 2018Article
- Article
- Invited Review Article: Pump-probe microscopy.The Review of scientific instruments · 2016Review
- Dispersion-based stimulated Raman scattering spectroscopy, holography, and optical coherence tomography.Optics express · 2016Article
- Flexible digital signal processing architecture for narrowband and spread-spectrum lock-in detection in multiphoton microscopy and time-resolved spectroscopy.The Review of scientific instruments · 2015Article
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3 authors.
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Abstract
We apply femtosecond pulse shaping to generate optical pulse trains that directly access a material's nonlinear refractive index (n2) and can thus determine time-resolved optical Kerr-effect (OKE) dynamics. Two types of static pulse trains are discussed: The first uses two identical fields delayed in time, plus a pump field at a different wavelength. Time-resolved OKE dynamics are retrieved by monitoring the phase of the interference pattern produced by the two identical fields in the Fourier-domain (FD) as a function of pump-probe-time-delay (where the probe is one of the two identical fields). The second pulse train uses three fields with equal time delays, but with the center field phase shifted by π/2. In this pulse scheme, changes on a sample's nonlinear refractive index produce a new frequency in the FD signal, which in turn yields background-free intensity changes in the conjugate (time) domain and provides superior signal-to-noise ratios. The demonstrated sensitivity improvements enable, for the first time to our knowledge, molecular imaging based on OKE dynamics.
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