High-quality femtosecond light sources are critical for developing advanced time- and angle-resolved photoemission spectroscopy (TrARPES), which is powerful in capturing the electronic dynamics in ...

Two-photon absorption and quantum light spectroscopy have emerged as transformative tools in modern optical research. At the heart of these techniques is the simultaneous absorption of two photons to ...

This article introduces the differences and similarities between Raman and infrared spectroscopy for identifying unknown materials and monitoring reactions. While the techniques are pretty similar, ...

Miniaturized spectroscopy systems that can detect trace concentrations at the parts-per-billion (ppb) level are of utmost importance in applications ranging from environmental monitoring and ...