The written version of my lecture is a personal reflection on decades of research on electron-
light interactions, culminating in their control and observation in real time at the turn of the …

Raman spectroscopy has made significant progress in biosensing and clinical research.
Here, we describe how surface-enhanced Raman spectroscopy (SERS) assisted with …

High-speed measurement confronts the extreme speed limit when the signal becomes
comparable to the noise level. In the context of broadband mid-infrared spectroscopy, state …

Tailoring the electric-field waveform of ultrashort light pulses forms the basis for controlling
nonlinear optical phenomena on their genuine, attosecond timescale. Here we extend …

High-brightness sources of coherent and few-cycle-duration light waveforms with spectral
coverage from the ultraviolet to the terahertz would offer unprecedented versatility and …

We demonstrate an on-chip, optoelectronic device capable of sampling arbitrary, low-
energy, near-infrared waveforms under ambient conditions with sub-optical-cycle resolution …

A coherent, compact and robust light source with coverage from the ultraviolet to the infrared
is desirable for heterodyne super-resolution imaging, broadband infrared microscopy …

The measurement and control of light field oscillations enable the study of ultrafast
phenomena on sub-cycle time scales. Electro-optic sampling (EOS) is a powerful field …

Understanding metabolism is indispensable in unraveling the mechanistic basis of many
physiological and pathological processes. However, in situ metabolic imaging tools are still …

Compact and smart optical gas sensors have attracted significant attention over the past few
decades. Among the materials used for developing such gas sensors, group-IV materials …