Nanoantennas have demonstrated unprecedented capabilities for manipulating the intensity and direction of light emission over a broad frequency range. The directional beam steering offered by nanoantennas has important applications in areas including microscopy, spectroscopy, quantum computing, and on-chip optical communication. Although both the physical principles and experimental realization...

We propose and theoretically demonstrate a novel type of optical Yagi-Uda nanoantennas tunable via variation of the free-carrier density of a semiconductor disk placed in a gap of a metallic dipole feeding element. Unlike its narrowband all-metal counterparts, this nanoantenna exhibits a broadband unidirectional emission and demonstrates a bistable response in a preferential direction of the fa...

Breakthroughs in unsupervised domain adaptation (uDA) can help adapting models from a label-rich source to unlabeled target domains. Despite these advancements, there is lack of research on how uDA algorithms, particularly those based adversarial learning, work distributed settings. In real-world applications, domains are often across thousands devices, and existing algorithms -- which centrali...

Unsupervised domain adaptation (UDA) requires source samples with clean ground truth labels during training. Accurately labeling a large number of is time-consuming and laborious. An alternative to utilize noisy for However, training can greatly reduce the performance UDA. In this paper, we address problem that learning UDA models only access propose novel method called robust local preserving ...

Two xylanase-encoding genes, named xyn11A and xyn10B, were isolated from a genomic library of Cellulomonas pachnodae by expression in Escherichia coli. The deduced polypeptide, Xyn11A, consists of 335 amino acids with a calculated molecular mass of 34,383 Da. Different domains could be identified in the Xyn11A protein on the basis of homology searches. Xyn11A contains a catalytic domain belongi...