67 citations · 122 across the 5 of their papers we have counts for
7 papers
Propagation-induced limits to high harmonic generation in 3D Dirac semimetals
Jeremy Lim, Yee Sin Ang, Lay Kee Ang +1
3D Dirac semimetals (DSMs) are promising materials for terahertz high harmonic generation (HHG). We show that 3D DSMs' high nonlinearity opens up a regime of nonlinear optics where…
Highly efficient terahertz generation using 3D Dirac semimetals
Lu Wang, Jeremy Lim, Liang Jie Wong
We show that 3D Dirac semimetals are promising candidates for highly efficient optical-to-terahertz conversion due to their extreme optical nonlinearities. In particular, we predic…
Monochromatic X-ray source based on scattering from a magnetic nanoundulator
Sophie Fisher, Charles Roques-Carmes, Nicholas Rivera +3
We present a novel design for an ultra-compact, passive light source capable of generating ultraviolet and X-ray radiation, based on the interaction of free electrons with the magn…
Abruptly Focusing and Defocusing Needles of Light and Closed-Form Electromagnetic Wavepackets
Liang Jie Wong, Ido Kaminer
Fourier optics enforces a tradeoff between length and narrowness in electromagnetic wavepackets, so that a narrow spatial focus diffracts at a large divergence angle, and only infi…
Ultrashort Tilted-Pulse-Front Pulses and Nonparaxial Tilted-Phase-Front Beams
Liang Jie Wong, Ido Kaminer
Electromagnetic pulses with tilted pulse fronts are instrumental in enhancing the efficiency of many light-matter interaction processes, with prominent examples including terahertz…
Terahertz-optical intensity grating for creating high-charge, attosecond electron bunches
J. Lim, Y. D. Chong, L. J. Wong
Ultrashort electron bunches are useful for applications like ultrafast imaging and coherent radiation production. Currently, however, the shortest achievable bunches, at attosecond…