Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"Spatiotemporal modulation"”.
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Tunable mechanical bandgaps in elastic metamaterials: Patterning, straining, and spatiotemporal modulation
… The last topic deals with the effect of spatiotemporally modulated elastic substrate on band gap structure. The elastic substrate opens band gap including zero frequency which has broad applications in practice. While the spatial modulation alone opens higher frequency band gaps, the …
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Dynamically programmable surfaces for high-speed optical modulation and detection
Dynamically programmable surfaces for spatiotemporal control of light are crucial to many optoelectronic technologies including high-speed optical communication, display and projection, autonomous driving, optical information processing, imaging, and fast programmable optical tweezers. Currently …
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From Waves to Touch: Advancing Ultrasound Haptics through Novel Modulation
… and public displays. While currently applied modulation techniques such as amplitude- and spatiotemporal-modulation (AM and STM) can elicit sensations in the human skin for 2D shapes, there is still much to be desired in terms of spatial precision for high-speed scanning points. Specifically, …
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Nonreciprocal coupling to microstrip resonators
… momentum-based techniques such as coherent spatiotemporal modulation of resonators and waveguides. One such technique, indirect interband scattering, uses a traveling wave bias to scatter light between two modes which differ in frequency and momentum. Due to momentum conservation, this …
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Non-reciprocity in piezoelectric and electrostatic microelectromechanical systems
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2025-05-01
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Unilateral and multi-functional RF front-end filtering networks using spatiotemporally modulated resonators arrays
… these challenges, this thesis investigates spatiotemporally modulated (STM) resonators as the basis for a new class of RF filtering components and signal-routing networks. The co-designing of RF filters with other front-end functionalities can effectively reduce size and cost. At the same …