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 Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

THz spectroscopy is an emerging tool for detection of microorganisms andharmful compounds in the food industry, the study of proteins in biomedicineand the development of electron-beam X-ray sources for molecular imaging andlithography. Recording of THz electric field evolution in single-shot iscrucially needed in terahertz spectroscopy of irreversible processes in suchapplications as well as for data communication in the THz portion of thespectrum where there is an abundance of untapped bandwidth. However, achievingsub-picosecond resolution over a long time window has been an open problem forelectro-optic sampling -- the standard technique for recording terahertzwaveforms. We introduce a new conceptual framework for this open problem thatis inspired by time-stretch theory. The novel framework unveils a solution tothis 20 year-old problem leading to a dramatic enhancement of the achievabletemporal resolution. We validate this new technology in two applications.First, we present single shot recordings of long free-propagating terahertztransients with record time resolution. Second, we present recordings ofultra-short relativistic electron bunches at the European X-ray Free ElectronLaser. These results show that electric signals may be now recorded withterahertz bandwidth over arbitrarily long windows, thus enabling therealization of "single-shot terahertz oscilloscopes" and single-shottime-domain spectroscopy systems with an arbitrary time-bandwidth product.

Phase Diversity Electro-optic Sampling: A new approach to single-shot terahertz waveform recording