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physics.optics2026
Quantum cascade laser roadmap
Carlo Silvestri, Aleksandar D. RakiÄ, Dragan Indjin +46
Quantum cascade lasers (QCLs) are unipolar semiconductor lasers first demonstrated in 1994. Since then, they have played a central role in advancing mid-infrared and terahertz phot…
physics.optics2026
Sub-doppler trace-gas photoacoustic spectroscopy
Jacopo Pelini, Stefano Dello Russo, Chenghong Zhang +10
Molecules are emerging as new benchmark for metrology and fundamental physics research, driving the demand for spectroscopic techniques combining high sensitivity and resolution. P…
physics.optics2025
Electron-to-photon noise transfer in mid-infrared semiconductor lasers
Irene La Penna, Tecla Gabbrielli, Borislav Hinkov +8
Noise characteristics of state-of-the art light sources are crucial parameters in understanding their limitations towards quantum applications. This work describes a method to stud…