Zobrazeno 1 - 10
of 56
pro vyhledávání: '"L. K. Ang"'
Autor:
Chun Yun Kee, L. K. Ang
Publikováno v:
APL Quantum, Vol 1, Iss 1, Pp 016112-016112-9 (2024)
Modeling the interaction between a quantum system and its environment is crucial for practical quantum technologies. The Lindblad master equation is the simplest equation to understand this interaction. In this paper, we have extended the traditional
Externí odkaz:
https://doaj.org/article/b0fec25c9986401eaa33270526aa1af0
Publikováno v:
Frontiers in Physics, Vol 10 (2022)
The tensor network, as a factorization of tensors, aims at performing the operations that are common for normal tensors, such as addition, contraction, and stacking. However, because of its non-unique network structure, only the tensor network contra
Externí odkaz:
https://doaj.org/article/9081853561bd4ecdbe6a637499caf3d6
Publikováno v:
APL Photonics, Vol 6, Iss 10, Pp 106101-106101-13 (2021)
We are interested in exploring the limit in using deep learning (DL) to study the electromagnetic (EM) response for complex and random metasurfaces, without any specific applications in mind. For simplicity, we focus on a simple pure reflection probl
Externí odkaz:
https://doaj.org/article/ced8016650044761890ce944a2d7875a
Autor:
K. J. A. Ooi, D. K. T. Ng, T. Wang, A. K. L. Chee, S. K. Ng, Q. Wang, L. K. Ang, A. M. Agarwal, L. C. Kimerling, D. T. H. Tan
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-10 (2017)
Typical CMOS materials in the telecommunications band suffer from two-photon absorption or possess weak Kerr nonlinearities. Here, Ooiet al. demonstrate 42.5 dB optical parametric amplification in ultra-silicon-rich nitride waveguides, designed to ha
Externí odkaz:
https://doaj.org/article/7f6ed2486dad49f78b6343084767f909
Autor:
Yee Sin Ang, L. K. Ang
Publikováno v:
Frontiers in Materials, Vol 6 (2019)
Understanding the physics of charge transport in organic materials and charge injection across organic-based interface is critically important for the development of novel organic electronics and optoelectronics. Despite extensive efforts devoted to
Externí odkaz:
https://doaj.org/article/49ebfe39dc754854bc96d09e93246139
Publikováno v:
APL Photonics, Vol 4, Iss 3, Pp 034402-034402-7 (2019)
The three-dimensional Dirac semimetal (3D DSM) is a new class of material with a slew of electronic and optical properties in common with graphene, while structurally having a bulk form like real metals. In particular, the Dirac band structure of 3D
Externí odkaz:
https://doaj.org/article/e3ad471e740f4bcc99e7ac5ca54acc7f
Publikováno v:
APL Photonics, Vol 1, Iss 4, Pp 046101-046101-10 (2016)
Graphene plasmonics provides a unique and excellent platform for nonlinear all-optical switching, owing to its high nonlinear conductivity and tight optical confinement. In this paper, we show that impressive switching performance on graphene plasmon
Externí odkaz:
https://doaj.org/article/8f79ee85318b4ee2aa4db1ae9cf4bf0c
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 18, Iss 12, p 123402 (2015)
A charge sheet model is proposed to study the space charge effect and uniformity of charge separation of an electron pulse train in a drift space. An analytical formula is derived for the charge density limit as a function of gap spacing, injecting e
Externí odkaz:
https://doaj.org/article/7d9af645b9b747a1856750743b40228a
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 18, Iss 2, p 020702 (2015)
This paper studies various mechanisms to enhance the coherent Smith-Purcell radiation (SPR) at terahertz frequencies using particle-in-cell (PIC) simulations. A simple analytical dispersion relation is derived to predict the frequency of the evanesce
Externí odkaz:
https://doaj.org/article/97a1d864cd8444c785f65ed06dcc5876
Publikováno v:
IEEE Transactions on Electron Devices. 70:1509-1519
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c8fa6babab842bfaedde57f9afc98dc
https://doi.org/10.1109/ted.2023.3236903
https://doi.org/10.1109/ted.2023.3236903