Zobrazeno 1 - 10
of 5 475
pro vyhledávání: '"A Alù"'
Autor:
Yves, Simon, Fleury, Romain, Shmuel, Gal, Vitelli, Vincenzo, Haberman, Michael R., Alù, Andrea
Phonons are quasi-particles associated with mechanical vibrations in materials, at the root of the propagation of sound, elastic / mechanical waves, and of thermal phenomena, common to our every day life and many technologies. The fundamental underst
Externí odkaz:
http://arxiv.org/abs/2411.18556
Exotic forms of wave control have been emerging by engineering matter in space and time. In this framework, temporal photonic interfaces, i.e., abrupt changes in the electromagnetic properties of a material, have been shown to induce temporal scatter
Externí odkaz:
http://arxiv.org/abs/2411.15984
Autor:
Lee, Hwaseob, Chang, Lorry, Kecebas, Ali, Mao, Dun, Xiao, Yahui, Li, Tiantian, Alù, Andrea, Özdemir, Sahin K., Gu, Tingyi
Exceptional points (EPs) have been extensively explored in mechanical, acoustic, plasmonic, and photonic systems. However, little is known about the role of EPs in tailoring the dynamic tunability of optical devices. A specific type of EPs known as c
Externí odkaz:
http://arxiv.org/abs/2410.22535
Autor:
Galiffi, Emanuele, Harwood, Anthony C., Vezzoli, Stefano, Tirole, Romain, Alù, Andrea, Sapienza, Riccardo
Time-invariant photonic structures amplify or absorb light based on their intrinsic material gain or loss. The coherent interference of multiple beams in space, e.g., in a resonator, can be exploited to tailor the wave interaction with material gain
Externí odkaz:
http://arxiv.org/abs/2410.16426
Autor:
Datta, Biswajit, Adak, Pratap Chandra, Yu, Sichao, Dharmapalan, Agneya V., Hall, Siedah J., Vakulenko, Anton, Komissarenko, Filipp, Kurganov, Egor, Quan, Jiamin, Wang, Wei, Mosina, Kseniia, Sofer, Zdeněk, Pashov, Dimitar, van Schilfgaarde, Mark, Acharya, Swagata, Kamra, Akashdeep, Sfeir, Matthew Y., Alù, Andrea, Khanikaev, Alexander B., Menon, Vinod M.
Excitons are fundamental excitations that govern the optical properties of semiconductors. Interacting excitons can lead to various emergent phases of matter and large nonlinear optical responses. In most semiconductors, excitons interact via exchang
Externí odkaz:
http://arxiv.org/abs/2409.18501
Autor:
Cotrufo, Michele, de Ceglia, Domenico, Jung, Hyunseung, Brener, Igal, Neshev, Dragomir, De Angelis, Costantino, Alù, Andrea
Digital signal processing is the cornerstone of several modern-day technologies, yet in multiple applications it faces critical bottlenecks related to memory and speed constraints. Thanks to recent advances in metasurface design and fabrication, ligh
Externí odkaz:
http://arxiv.org/abs/2409.16448
Autor:
Yang, Guoce, Wang, Mengyun, Lee, June Sang, Farmakidis, Nikolaos, Shields, Joe, de Galarreta, Carlota Ruiz, Kendall, Stuart, Bertolotti, Jacopo, Moskalenko, Andriy, Huang, Kairan, Alù, Andrea, Wright, C. David, Bhaskaran, Harish
The next generation of smart imaging and vision systems will require compact and tunable optical computing hardware to perform high-speed and low-power image processing. These requirements are driving the development of computing metasurfaces to real
Externí odkaz:
http://arxiv.org/abs/2409.10976
Autor:
Fang, Jie, Chen, Rui, Sharp, David, Renzi, Enrico M., Manna, Arnab, Kala, Abhinav, Mann, Sander A., Yao, Kan, Munley, Christopher, Rarick, Hannah, Tang, Andrew, Pumulo, Sinabu, Zheng, Yuebing, Menon, Vinod M., Alu, Andrea, Majumdar, Arka
High-quality (Q)-factor optical resonators with extreme temporal coherence are of both technological and fundamental importance in optical metrology, continuous-wave lasing, and semiconductor quantum optics. Despite extensive efforts in designing hig
Externí odkaz:
http://arxiv.org/abs/2409.02874
Autor:
Lin, Linhan, Lepeshov, Sergey, Krasnok, Alex, Huang, Yu, Jiang, Taizhi, Peng, Xiaolei, Korgel, Brian A., Alu, Andrea, Zheng, Yuebing
Fano resonances in photonics arise from the coupling and interference between two resonant modes in structures with broken symmetry. They feature an uneven and narrow and tunable lineshape, and are ideally suited for optical spectroscopy. Many Fano r
Externí odkaz:
http://arxiv.org/abs/2409.01508
Distinct selectivity to the spin angular momenta of photons have garnered significant attention in recent years, for their relevance in basic science and for imaging and sensing applications. While nonlocal metasurfaces with strong chiral responses t
Externí odkaz:
http://arxiv.org/abs/2408.09328