BACKGROUND The generation and control of coherent electromagnetic waves, such as
those provided by electronic oscillators in the radio frequency domain or lasers in the optical …

The accurate measurement of time lies at the heart of experimental science, and is relevant
to everyday life. Extending chronoscopy to ever shorter timescales has been the key to …

Recently two emerging areas of research, attosecond and nanoscale physics, have started
to come together. Attosecond physics deals with phenomena occurring when ultrashort laser …

The time it takes to switch on and off electric current determines the rate at which signals can
be processed and sampled in modern information technology,,,. Field-effect transistors,,,, are …

Intense ultrashort light pulses comprising merely a few wave cycles became routinely
available by the turn of the millennium. The technologies underlying their production and …

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 …

Extremely narrow optical resonances in cold atoms or single trapped ions can be measured
with high resolution. A laser locked to such a narrow optical resonance could serve as a …

Ultrafast lasers, which generate optical pulses in the picosecond and femtosecond range,
have progressed over the past decade from complicated and specialized laboratory systems …

The rise time of intense radiation determines the maximum field strength atoms can be
exposed to before their polarizability dramatically drops due to the detachment of an outer …

We stabilized the carrier-envelope phase of the pulses emitted by a femtosecond mode-
locked laser by using the powerful tools of frequency-domain laser stabilization. We …