Mid-infrared electric field characterization using a visible charge-coupled-device-based spectrometer |
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Authors: | Kubarych Kevin J Joffre Manuel Moore Amy Belabas Nadia Jonas David M |
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Institution: | Centre National de la Recherche Scientifique, Unite Mixte de Recherche 7645, INSERM U 451, Ecole Polytechnique, Ecole Nationale Supérieure de Techniques Avancées, 91128 Palaiseau, France. kevin.kubarych@polytechnique.fr |
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Abstract: | We characterize ultrashort mid-infrared pulses through upconversion by using the stretched pulses obtained from the uncompressed output of a chirped-pulse amplifier. The power spectrum thus translated into the visible region can be readily measured with a standard silicon CCD camera-based spectrometer. The spectral phase is also characterized by a variant of zero-added-phase spectral phase interferometry for direct electric field reconstruction. This is a general method that provides a multiplex advantage over conventional infrared detector array-based methods. |
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