[Audio] ECE 616: Ultrafast Optics

Andrew M Weiner
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  1. 04/12/2012

    ECE 616 Lecture 30: Coherent Polarization Effects and Dephasing

    Related reading: Ultrafast Optics, 9.6.

  2. 04/12/2012

    ECE 616 Lecture 29: Ultrafast Spectroscopy

    Related reading: Ultrafast Optics, 9.1-9.3.

  3. 04/12/2012

    ECE 616 Lecture 27: Fourier Transform Pulse Shaping

    Related reading: Ultrafast Optics 8.1

  4. 04/05/2012

    ECE 616 Student Presentation: MIIPS - Pulse-Shaper Enabled Pulse Measurement and Shaping

    Common ultrafast laser pulse characterization methods, such as autocorrelation, frequency-resolved optical gating (FROG), and spectral phase interferometry for direct electric-field reconstruction (SPIDER), can only measure the pulse characteristics, whose use is limited when measuring and shaping the pulse are both required. As a pulse-shaper-assisted measurement method, multiphoton intrapulse interference phase scan (MIIPS) can simultaneously characterize the pulse and shape it into specified forms. In MIIPS, a pulse shaper imposes a known reference spectral phase function to the pulse to locally cancel distortions caused by the spectral phase to be determined. The effect of the introduced phase function is monitored through measuring the spectrum of a nonlinear signal of the pulse. When the desired cancellation is achieved, the unknown spectral phase function can be deduced from the reference function. In this study, the theory of MIIPS is analyzed and the experimental realization is discussed.

  5. 04/05/2012

    ECE 616 Lecture 26: Ultrashort Pulse Amplification

    Related reading: Ultrafast Optics, 8.4.

  6. 03/28/2012

    ECE 616 Lecture 25: Mode-Locked Frequency Combs

    Related reading: Ultrafast Optics, 7.5.

  7. 03/26/2012

    ECE 616 Lecture 24: Soliton Effects in Mode-Locked Lasers with Fast Self-Amplitude-Modulation

    Related reading: Ultrafast Optics, 7.1.

  8. 03/03/2012

    ECE 616 Student Presentation: Ultrafast Non-linear Plasmonics

    Plasmonics has gained significant attention in the recent days owing to its capability of providing sub-wavelength confinement of light. As a consequence of sub-wavelength confinement of electric field, the field intensity issignificantly enhanced. High field intensity achieved by plasmonics, together with high intensity provided by ultrafast pulse excitation techniques,provide an efficient way to harness the non-linearity of many materials. Non-linear characteristics of plasmonic devices can enable important applications such as plasmonic switches. Owing to the technological importance of these applications, active/non-linear plasmonics is gaining greater attention in the past few years. This review focuses on a few recent reports where plasmonic structures have been used to demonstrate various effects such as efficient four-wave mixing, ultrafast switching and magneto-plasmonic microinterferometry.

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