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ECE 616 Lecture 8: Solid-State Laser Mode-Locking Including Phase Effects
04 Oct 2011 | | Contributor(s):: Andrew M Weiner
Related reading: Ultrafast Optics, 2.4
ECE 616 Lecture 9: Ultrashort Pulse Measurement: Introduction and Electric Field Autocorrelation
19 Sep 2011 | | Contributor(s):: Andrew M Weiner
Related reading: Ultrafast Optics, 3.1-3.2
ECE 616 Student Presentation: Dual-Comb Spectroscopy
02 Mar 2012 | | Contributor(s):: Andrew J Metcalf
Dual comb spectroscopy is introduced, a technique that is basedon the beating of two frequency combs. A sample is first interrogated bythe combs before they are beat together via photodiode which down convertsthe signal from the optical to RF domain where it can be processed with electronics. A...
ECE 616 Student Presentation: MIIPS - Pulse-Shaper Enabled Pulse Measurement and Shaping
05 Apr 2012 | | Contributor(s):: Liang Guo
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...
ECE 616 Student Presentation: Ultrafast Non-linear Plasmonics
02 Mar 2012 | | Contributor(s):: Gururaj V Naik
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,...
ECE 616 Teaching Materials: Homework Assignments (Fall 2011)
12 Sep 2011 | | Contributor(s):: Andrew M Weiner
ECE 616: Ultrafast Optics
29 Aug 2011 | | Contributor(s):: Andrew M Weiner
Topics:Introduction and reviewUltrashort pulse generation techniquesMode-locking: overviewActive mode lockingPassive mode lockingMeasurement techniquesCorrelation techniquesTime-frequency methodsNoise and jitterDispersion and its compensationMaterial dispersionAngular dispersion...
Paulo AndrÃ© Dias GonÃ§alves
Shaping Ultrafast Laser Fields for Photonic Signal Processing
06 Jun 2012 | | Contributor(s):: Andrew M Weiner
This talk will begin with a brief general introduction into ultrafast optics and then specifically address the topic of shaping ultrafast laser fields. Because the time scales involved are much too fast for direct application of (opto)electronic modulator technologies, all-optical approaches are...
Tracking Energy Flow From the Nano to Mesoscale with Ultrafast Nanoscopy
22 Mar 2016 | | Contributor(s):: Libai Huang
In this talk, I will discuss our recent efforts on elucidating multi-scale energy transfer, migration, and dissipation processes with simultaneous femtosecond temporal resolution and nanometer spatial resolution. We have combined/correlated ultrafast spectroscopy with high spatial resolution...
Ultrafast & Broadband Photonic Signal Processing: From Microdevices to Control of RF Propagation
15 Jan 2013 | | Contributor(s):: Andrew M Weiner
This talk is part of the International Workshop "Novel Ideas in Optics: From Advanced Materials to Revolutionary Applications" hosted by Purdue University.
Ultrafast Optical Measurements of Spin Polarization in Semiconductors
29 Mar 2016 | | Contributor(s):: Vanessa Sih
n this talk, I will describe optical techniques that can measure the magnitude and direction of spin-orbit fields and electrically-generated spin polarization in non-magnetic semiconductors and the modification of the electron spin precession frequency in a bulk semiconductor using an applied...
Ultrafast Photonic Signal Processing: A Quarter Century Perspective
28 May 2015 | | Contributor(s):: Andrew M Weiner
In this lecture I will begin with a brief introduction to ultrafast optics and specifically to methods permitting shaping of ultrafast laser fields on time scales too fast for direct electronic control. For contrast I will first provide some brief perspective on the state of my research around...