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Meso- vs. Nanolasers
Nanolasers are attracting ever increasing interest thanks to formidable technological advances which are now allowing for the fabrication even of electrically-pumped devices. Nonetheless, some of the fundamental hurdles remain unchecked, such as the scant availability of instrumentation with sufficient sensitivity and bandpass to allow for a complete characterization. Thus, their specifications in terms of coherence, "threshold" etc. must rely on indirect measurements based on photon counting and photons statistics (which require comparison to reliable modeling).
In the following paper we compare the operation of mesoscale lasers (on which a complete characterization is possible) to what can be extrapolated for nanolasers and establish criteria for scaling the laser characteristics as the device's size is progressively reduced.
T. Wang, G.P. Puccioni, and G.L. Lippi, How mesoscale lasers can answer fundamental questions related to nanolasers, Proc. SPIE 9884, Nanophotonics VI, 98840B (April 18, 2016); doi:10.1117/12.2227302
For more information cf. also the following article by clicking here
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Current research interests
Fundamental physical properties of small size lasers
Threshold in nano- and meso-scale lasers
First-principles, stochastic modeling of lasers
Experimental techniques and instrumentation