Studie der optischen und quantenoptischen Kohärenz resonator-verstärkter Nanolaser mit 2D-Materialen als Verstärkungsmedium
Zusammenfassung der Projektergebnisse
In direct cooperation between sample fabrication, experiment, and theory we have studied novel nanolasers with strongly reduced laser threshold due to large spontaneous emission coupling. Various resonator designs (photonic defect, microdisk and nanobeam resonators, as well as silver-coated metallic nanolasers) were investigated and combined with different active materials (InGaAs quantum dots, GaN and GaAs-based quantum wells, atomically thin twodimensional semiconductors). Our research has led to new and innovative laser devices. In particular, photonic defect resonators with atomically thin TMDs for which laser emission have been developed and studied. Another example consists of nanobeam resonators, for which the transition to stimulated emission has also been demonstrated by quantum optical measurements. Due to a small number of photons in the laser mode, these systems show novel quantum effects of light. The unexpected effects we found include a change in the line shape in the emission spectrum at the laser threshold as well as side-mode emission due to mode coupling based on photon scattering mediated by the active material. Nevertheless, the investigations of the photon correlation functions play an important role in demonstrating that the transition to stimulated emission is achieved in these new nanolasers. Such evidence has been lacking in the past, raising questions about previous investigations by other groups, which have now been addressed in this project. Overall, important progress has been made towards the realization of TMD based nanolasers for which quantum optical measurements demonstrate laser emission.
Projektbezogene Publikationen (Auswahl)
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Extraction of silver losses at cryogenic temperatures through the optical characterization of silver-coated plasmonic nanolasers. Optics Express, 30(12), 21664.
Koulas-Simos, Aris; Sinatkas, Georgios; Zhang, Taiping; Xu, Jia-Lu; Hayenga, William E.; Kan, Qiang; Zhang, Ruikang; Khajavikhan, Mercedeh; Ning, Cun-Zheng & Reitzenstein, Stephan
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Optical nonlinearities in the excited carrier density of atomically thin transition metal dichalcogenides. Physical Review B, 106(4).
Erben, D.; Steinhoff, A.; Lorke, M. & Jahnke, F.
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Quantum Fluctuations and Lineshape Anomaly in a High‐β Silver‐Coated InP‐Based Metallic Nanolaser. Laser & Photonics Reviews, 16(9).
Koulas‐Simos, Aris; Buchgeister, Joel; Drechsler, Monty L.; Zhang, Taiping; Laiho, Kaisa; Sinatkas, Georgios; Xu, Jialu; Lohof, Frederik; Kan, Qiang; Zhang, Ruikang K.; Jahnke, Frank; Gies, Christopher; Chow, Weng W.; Ning, Cun‐Zheng & Reitzenstein, Stephan
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Low-threshold lasing of optically pumped micropillar lasers with Al0.2Ga0.8As/Al0.9Ga0.1As distributed Bragg reflectors. Applied Physics Letters, 122(15).
Shih, Ching-Wen; Limame, Imad; Krüger, Sebastian; Palekar, Chirag C.; Koulas-Simos, Aris; Brunner, Daniel & Reitzenstein, Stephan
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Ultrafast hot electron–hole plasma photoluminescence in two-dimensional semiconductors. Nanoscale, 15(15), 7154-7163.
Sousa, Frederico B.; Perea-Causin, Raül; Hartmann, Sean; Lafetá, Lucas; Rosa, Bárbara; Brem, Samuel; Palekar, Chirag; Reitzenstein, Stephan; Hartschuh, Achim; Malic, Ermin & Malard, Leandro M.
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Diameter-dependent whispering gallery mode lasing effects in quantum dot micropillar cavities. Optics Express, 32(18), 31819.
Limame, Imad; Shih, Ching-Wen; Koulas-Simos, Aris; Pietsch, Johannes; Roche, Léo J.; Plattner, Moritz; Koltchanov, Alexej; Rodt, Sven & Reitzenstein, Stephan
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Enhancement of Interlayer Exciton Emission in a TMDC Heterostructure via a Multi‐Resonant Chirped Microresonator Upto Room Temperature. Advanced Materials, 36(35).
Palekar, Chirag C.; Rosa, Barbara; Heermeier, Niels; Shih, Ching‐Wen; Limame, Imad; Koulas‐Simos, Aris; Rahimi‐Iman, Arash & Reitzenstein, Stephan
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High‐β Lasing in Self‐Assembled Photonic‐Defect Microcavities with a Transition Metal Dichalcogenide Monolayer as Active Material. Laser & Photonics Reviews, 18(11).
Koulas‐Simos, Aris; Palekar, Chirag C.; Gaur, Kartik; Limame, Imad; Shih, Ching‐Wen; Rosa, Bárbara L.T.; Ning, Cun‐Zheng & Reitzenstein, Stephan
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Multimode Emission in GaN Microdisk Lasers. Laser & Photonics Reviews, 18(10).
Drechsler, Monty L.; Choi, Luca Sung‐Min; Tabataba‐Vakili, Farsane; Nippert, Felix; Koulas‐Simos, Aris; Lorke, Michael; Reitzenstein, Stephan; Alloing, Blandine; Boucaud, Philippe; Wagner, Markus R. & Jahnke, Frank
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Self‐Aligned Photonic Defect Microcavity Lasers with Site‐Controlled Quantum Dots. Laser & Photonics Reviews, 18(7).
Shih, Ching‐Wen; Limame, Imad; Palekar, Chirag C.; Koulas‐Simos, Aris; Kaganskiy, Arsenty; Klenovský, Petr & Reitzenstein, Stephan
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Material-oriented modeling of quantum many-body effects in a monolayer transition metal dichalcogenide nanolaser device. Physical Review B, 111(8).
Buchgeister, J.; Steinhoff, A.; Erben, D.; Lorke, M. & Jahnke, F.
