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We demonstrated an integrated system that can manipulate and measure vectorial field spanning up to the entire repetition period without ambiguity, iteration, and reference.
Performance of the spectral-domain optical coherence tomography is limited by its Ascan rate, namely the frame rate of spectrometer. In this paper, 60-MHz A-scan rate is achieved by adopting a recently demonstrated parametric spectro-temporal analyzer.
Femtosecond lasers began to draw attention as a new light source for high-precision absolute distance measurements (ADMs) allowing for advanced principles such as synthetic wavelength generation, Fourier-transform-based dispersive analysis and multi-wavelength interferometry. In this talk, we present the state-of-the-art measurement principles and performance demonstrated by exploiting the unique...
We compare deviations from theory in the yield of second harmonic generation in order to characterize high-repetition rate femtosecond laser sources where the amplitude and phase differs from pulse to pulse. Experimental results are presented for cases with phase noise and a post-pulse.
The fs-laser induced refractive index change in zinc aluminum phosphate glasses and its underneath structural modifications have been investigated both at the surface and in bulk.
The evolution of the gain of terahertz quantum cascade laser during injection seeding is probed as a function of time. Oscillations of the gain are commensurate with the variations of the field envelope.
We isolate the vibrational free-induction decay of a homogeneous molecular subensemble using ultrafast infrared vibrational scattering-scanning near-field microscopy. The observed long-lived few picosecond vibrational coherences, intramolecular coherence transfer, and spatial variations in vibrational modes indicate non-ergodic behavior.
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