Measuring intensity correlations of a THz quantum cascade laser around its threshold at sub-cycle timescales

Ileana Cristina Benea Chelmus; Christopher Bonzon; Curdin Maissen; Giacomo Scalari; Mattias Beck; Jérôme Faist

doi:10.1117/12.2207453

25 February 2016 Measuring intensity correlations of a THz quantum cascade laser around its threshold at sub-cycle timescales

Ileana Cristina Benea Chelmus, Christopher Bonzon, Curdin Maissen, Giacomo Scalari, Mattias Beck, Jérôme Faist

Author Affiliations +

Proceedings Volume 9747, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications IX; 974715 (2016) https://doi.org/10.1117/12.2207453
Event: SPIE OPTO, 2016, San Francisco, California, United States

Abstract

The quantum nature of photonic systems is reflected in the photon statistics of the light they emit. Therefore, the development of quantum optics tools with single photon sensitivity and excellent temporal resolution is paramount to the development of exotic sources, and is particularly challenging in the THz range where photon energies approach k_bT at T=300 K. Here, we report on the first room temperature measurement of field g¹(τ) and intensity correlations g²(τ) in the THz range with sub-cycle temporal resolution (146 fs) over the bandwidth 0.3-3 THz, based on electro-optic sampling. With this system, we are able to measure the photon statistics at threshold of a THz Quantum Cascade Laser.

Citation Download Citation

Ileana Cristina Benea Chelmus, Christopher Bonzon, Curdin Maissen, Giacomo Scalari, Mattias Beck, and Jérôme Faist "Measuring intensity correlations of a THz quantum cascade laser around its threshold at sub-cycle timescales", Proc. SPIE 9747, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications IX, 974715 (25 February 2016); https://doi.org/10.1117/12.2207453

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