The Raschke group pursues experimental nonlinear and ultrafast nano-optics. The goal is to understand and control the light-matter interaction in solids on nanometer length scales and femtosecond time scales. Combining scanning probe microscopy with ultrashort laser pulse excitation as developed by his group provides access to the natural length and time scales of the elementary electronic, vibrational, and structural excitations. This allows them to address the fundamental processes underlying correlated electron phenomena in complex oxides, semiconductor heterostructures, or the phase behavior in polymer nano-composites. They apply concepts of optical antennas and surface plasmon and phonon polaritons to confine, sculpt, and control light spectrally, nanometer spatially, and on time scales of a single-optical cycle. They also explore new optical phenomena and forces unique to the optical near-field, including extreme nonlinear optics, and strong light matter interaction.
keywords
Nonlinear and ultrafast nano-optics, control light-matter interaction in solids on nanometer length scales and femtosecond time scales, combining scanning probe microscopy with ultrashort laser pulse excitation, study of correlated electron phenomena in complex oxides, semiconductor heterostructures, phase behavior in polymer nano-composites; optical antennas, surface plasmon polaritons, extreme nonlinear optics, strong light matter interaction
ECEN 5006 - Special Topics
Primary Instructor
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Spring 2018
Examines a special topic in Electrical, Computer and Energy Engineering. May be repeated up to 9 total credit hours.
PHYS 7650 - Nonlinear and Nano-Optics
Primary Instructor
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Fall 2018 / Spring 2020 / Spring 2022
Covers the field of ultrafast optics including both experimental and theoretical aspects. Topics include: description of ultrashort optical pulses, propagation of pulses including dispersion and nonlinearity, their integration, measurement and manipulation and their use in applications including spectroscopy. Recommended prerequisites: PHYS 4510 or PHYS 5160.
PHYS 7660 - Ultrafast Optics
Primary Instructor
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Spring 2019 / Spring 2021 / Spring 2024
Covers the field of ultrafast optics including both experimental and theoretical aspects. Topics include description of ultrashort optical pulses, propagation of pulses including dispersion and nonlinearity, their generation, measurement and manipulation and their use in applications including spectroscopy. Department enforced prerequisite: PHYS 5160, or PHYS 4510, or ECEN 5645.
PHYS 7810 - Special Topics in Physics
Primary Instructor
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Spring 2018
Various topics not normally covered in the curriculum; offered intermittently depending on student demand and availability of instructors. May be repeated up to 7 total credit hours.
