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

We demonstrate a robust and simple method for measurement, stabilization andtuning of the frequency of cw mid-infrared (MIR) lasers, in particular ofquantum cascade lasers. The proof of principle is performed with a quantumcascade laser at 5.4 \mu m, which is upconverted to 1.2 \mu m by sum-frequencygeneration in orientation-patterned GaAs with the output of a standardhigh-power cw 1.5 \mu m fiber laser. Both the 1.2 \mu m and the 1.5 \mu m wavesare measured by a standard Er:fiber frequency comb. Frequency measurement atthe 100 kHz-level, stabilization to sub-10 kHz level, controlled frequencytuning and long-term stability are demonstrated.

optics express

Robust, frequency-stable and accurate mid-IR laser spectrometer based on  frequency comb metrology of quantum cascade lasers up-converted in  orientation-patterned GaAs