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Yujie J. Ding
Researcher at Lehigh University
Publications - 207
Citations - 3388
Yujie J. Ding is an academic researcher from Lehigh University. The author has contributed to research in topics: Terahertz radiation & Laser. The author has an hindex of 28, co-authored 207 publications receiving 3191 citations.
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Efficient, tunable, and coherent 0.18 5.27-THz source based on GaSe crystal
TL;DR: Continuously tunable and coherent radiation in the wide range 56-1618 mum (0.18-5.27 THz) has been achieved as a novel and promising terahertz source based on collinear phase-matched difference frequency generation in a GaSe crystal.
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Ultrawide-bandwidth slow-light system based on THz plasmonic graded metallic grating structures.
TL;DR: A novel mechanism for slowing down THz waves based on metallic grating structures with graded depths, whose dispersion curves and cutoff frequencies are different at different locations, which offers the advantage of reducing the speed of the light over an ultrawide spectral band, and the ability to operate at various temperatures.
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"Rainbow" trapping and releasing at telecommunication wavelengths.
TL;DR: By incorporating the frequency-dependent dielectric properties of the metal, the graded grating structures developed for "trapped rainbow" storage of THz light in mum level can be scaled to nm level for telecommunication waves for applications in optical communication and various nanophotonic circuits.
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Experimental verification of the rainbow trapping effect in adiabatic plasmonic gratings
TL;DR: Tunable plasmonic bandgaps were observed experimentally, and direct optical measurements show that light of different wavelengths in the 500–700-nm region is “trapped” at different positions along the grating, consistent with computer simulations, thus verifying the “rainbow” trapping effect.
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Compact and portable terahertz source by mixing two frequencies generated simultaneously by a single solid-state laser
TL;DR: By mixing two frequencies generated from a single Q-switched Nd:YLF laser in a GaSe crystal, an average terahertz output power reaches 1 μW within a bandwidth of 65 GHz at 1.64 THz.