English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Transient field-resolved spectroscopy enables studies of ultrafast dynamicsin molecules, nanostructures, or solids with sub-cycle resolution, but previouswork has so far concentrated on extracting the dielectric response atfrequencies below 50\,THz. Here, we implemented transient field-resolvedreflectometry at 50-100\,THz (3-6\,$\mu$m) with MHz repetition rate employing800\,nm few-cycle excitation pulses that provide sub-10\,fs temporalresolution. The capabilities of the technique are demonstrated in studies ofultrafast photorefractive changes in the semiconductors Ge and GaAs, where thehigh frequency range permitted to explore the resonance-free Drude response.The extended frequency range in transient field-resolved spectroscopy canfurther enable studies with so far inaccessible transitions, includingintramolecular vibrations in a large range of systems.

Transient field-resolved reflectometry at 50-100 THz