TOM 1 - Silicon Photonics and Guided-Wave Optics
TOM 2 - Computational, Adaptive and Freeform Optics
TOM 3 - Optical System Design, Tolerancing and Manufacturing
TOM 4 - Bio-Medical Optics
TOM 5 - Resonant Nanophotonics
TOM 6 - Optical Materials: crystals, thin films, organic molecules & polymers, syntheses, characterization and applications
TOM 7 - Thermal radiation and energy management
TOM 8 - Non-linear and Quantum Optics
TOM 9 - Opto-electronic Nanotechnologies and Complex Systems
TOM 10 - Frontiers in Optical Metrology
TOM 11 - Tapered optical fibers, from fundamental to applications
TOM 12 - Optofluidics
TOM 13 - Advances and Applications of Optics and Photonics
EU Project Session
Early Stage Researcher Session
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Please note that all times are shown in the time zone of the conference. The current conference time is: 11th Aug 2022, 10:37:09pm WEST
Classical and quantum light sources based on colloidal semiconductor nanocrystals
Francesco Di Stasio
Istituto Italiano di Tecnologia, Italy
Here I will present some recent application of semiconductor nanocrystals in optoelectronic devices such as light-emitting diodes (LEDs), and single photon emitters (SPEs). In particular I will focus on how III-V semiconductor nanocrystals such as InAs are promising candidates for RoHS complaiant near- infrared LEDs, and how the solution processing of colloidal nanocrystals can be exploited for the fabrication of small-footprint electrically driven SPEs.
Thermal effects reduction in a diode side-pumped rod-like bonded α-quartz||Nd:glass||α-quartz amplifying medium
Thomas Dubé1,2, Patrice Camy2, Sébastien Montant1
1CEA CESTA, 33116 Le Barp, France; 2CIMAP ENSICAEN, UMR 6252, 6 boulevard du Maréchal Juin, 14050 CAEN Cedex, France
We present a numerical study of a square-shape rod-like bonded laser gain medium operating at 1053 nm. The sample is composed of a 5-mm thick Nd-doped phosphate glass bonded to two α-quartz crystals. Owing to this face cooling scheme, the heat generated in the gain medium is effectively reduced, hence resulting in less optical distortions. The simulation of the thermomechanical effects was conducted using COMSOL MultiPhysics® software. Transverse wavefront distortion and birefringence profiles were computed for a given pump mean power. Wavefront and birefringence measurements will be conducted on the bonded sample using a pump-probe setup which is discussed in this paper. These measurements will be presented and weighed with the numerical results.
In this work, we experimentally and theoretically investigate the optical and electrical optimization of an OLED associated to a mixed-order DFB cavity. We, firstly focus on the design and the fabrication of a mixed-order DFB cavity with a high quality factor. We particularly study the impact of the deposition of the organic layers on the topology and the quality factor of the cavity.
Muriel Hissler1, Pierre-Antoine Bouit2, Denis Tondelier3, Bernard Geffroy4
1University of Rennes 1, France; 2University of Rennes 1, France; 3Ecole Polytechnique; 4Ecole Polytechnique
In this paper, we present the development of OLEDs using organophosphorus derivatives as emitters. In this study, we were able to show that the structural variations carried out on phospholes, phosphinines and phosphepines (functionalization of the phosphorus atom, nature of the substituents) make it possible to modulate the emission wavelengths and, thus, the emission colour of the diodes. Using this concept, we were able to develop TADF and chiral organophosphorus emitters and hybrids emitting at different wavelengths which can be used for the development of OLEDs. The diode structures used are simple and provide high external quantum yields
1National Taiwan University, Taiwan; 2Université Paris 13, France
Simultaneous oscillation of two pairs of signals and idlers was demonstrated. We also showed the efficiency of the sum frequency generation of two idlers was comparable with second harmonic generation of each idler. Our design shows the potential of building multi-wavelength laser source from UV to NIR on monolithic crystal.