Results 91 to 100 of about 6,429 (170)

Fundamental Building Blocks for Scalable Photonic Programmable Processors

Nanophotonics, Volume 15, Issue 8, 24 April 2026.
Silicon photonic programmable processors are advanced through the optimisation and experimental validation of key building blocks, including splitters, phase shifters and crossings. In this work, their scalability is experimentally demonstrated at the wafer scale, and their circuit‐level impact is showcased in a high‐speed 4 × 4 optical switch ...
Cristina Gómez‐Hidalgo, Juan Fernández‐Vicente, Natalia Balbastre‐Benavent, María Manglano‐Bermejo, Marios Papadovasilakis, Ahmed Elsharabasy, Rocío Baños‐López, Jesús Benítez‐González, Ana Gutiérrez‐Campo, Tsjerk Hoekstra, Daniel Pérez‐López, Luis Torrijos‐Morán   +11 more
wiley   +1 more source

One-shot x-ray detection based on the instantaneous change in the refractive index of GaAs

AIP Advances, 2020
An interferometric semiconductor x-ray detection system is proposed in this paper. The system is based on the RadOptic effect, and it utilizes Fabry–Perot interferometry to measure radiation-induced changes in the optical refractive index of a ...
Guilong Gao, Kai He, Tao Yi, Meng Lv, Yun Yuan, Xin Yan, Fei Yin, Shaohui Li, Ronghao Hu, Tao Wang, Jinshou Tian   +10 more
doaj   +1 more source

Design of a Direct-Detection Wind and Aerosol Lidar for Mars Orbit [PDF]

The present knowledge of the Mars atmosphere is greatly limited by a lack of global measurements of winds and aerosols. Hence, measurements of height-resolved wind and aerosol profiles are a priority for new Mars orbiting missions.
Abshire, James B., Allan, Graham R., Cremons, Daniel R., Floyd Hovis, Guzewich, Scott D., Haris Riris, Smith, Michael D., Sun, Xiaoli, Yu, Anthony W.   +8 more
core   +1 more source

Three Cavity Tunable MEMS Fabry Perot Interferometer

Sensors, 2007
In this paper a four-mirror tunable micro electro-mechanical systems (MEMS)Fabry Perot Interferometer (FPI) concept is proposed with the mathematical model. Thespectral range of the proposed FPI lies in the infrared spectrum ranging from 2400 to 4018(nm).
Narayanswamy Sivakumar, Muthukumaran Packirisamy, Ankur Shah, Avinash Parashar   +3 more
doaj   +1 more source

Klein tunneling in graphene: optics with massless electrons

, 2011
This article provides a pedagogical review on Klein tunneling in graphene, i.e. the peculiar tunneling properties of two-dimensional massless Dirac electrons.
A. Calogeracos, A. Calogeracos, A. Castro-Neto, A. Geim, A.F. Young, A.G. Aronov, A.V. Shytov, B. Huard, B. Özyilmaz, C. Bena, C.H. Park, C.W.J. Beenakker, E. McCann, E.B. Sonin, F. Sauter, G. Gamow, G. Liu, J. Cayssol, J. N. Fuchs, J. Tworzydlo, J.B. Pendry, J.H. Bardarson, J.M. Pereira, J.M. Pereira Jr, J.N. Fuchs, J.R. Williams, K. Nomura, K.S. Novoselov, L.M. Zhang, M. Barbier, M. Bocquet, M. Ramezani Masir, M.C. Lemme, M.I. Katsnelson, M.I. Katsnelson, M.M. Fogler, M.R. Setare, N. Mott, N. Stander, N.H. Shon, O. Bahat-Treidel, O. Klein, P. E. Allain, P.A.M. Dirac, P.R. Wallace, R.V. Gorbachev, R.W. Gurney, R.W. Gurney, S. Ghosh, T. Ando, T. Ando, V. Jakubský, V.V. Cheianov, V.V. Cheianov, X. Chen   +54 more
core   +1 more source

Fabry–Perot interferometer as a solar background noise suppressor: application to daytime lidar

Annals of Geophysics, 2012
Continuous atmospheric probing by a lidar is a requirement for many applications. However, due to high solar background noise during the daytime, lidar operations are mostly restricted to night-time.
Karnam Raghunath, Karnam Ramesh, Sanama Narayana Reddy   +2 more
doaj   +1 more source

Intermittent reconnection and plasmoids in UV bursts in the low solar atmosphere

, 2017
Magnetic reconnection is thought to drive a wide variety of dynamic phenomena in the solar atmosphere. Yet the detailed physical mechanisms driving reconnection are difficult to discern in the remote sensing observations that are used to study the solar ...
Carlsson, M., De Pontieu, B., Guo, L. J., Hansteen, V. H., Jafarzadeh, S., Martinez-Sykora, J., Nobrega-Siverio, D., Pereira, T. M. D., Rodriguez, J. de la Cruz, Scharmer, G. B., van der Voort, L. Rouppe, Vissers, G.   +11 more
core   +1 more source

Modified All-Fiber Fabry–Perot Interferometer and Its Refractive Index, Load, and Temperature Analyses

IEEE Photonics Journal, 2015
An all-fiber Fabry-Perot (FP) interferometer is proposed and validated by the arc splicing technique. By using conventional fiber and special hollow-core photonic crystal fiber, several FP cavities were formed at the conventional fiber tip using arc ...
D. Jauregui-Vazquez, Y. Lopez-Dieguez, J. M. Sierra-Hernandez, M. Perez-Maciel, M. S. Avila-Garcia, E. Vargas-Rodriguez, R. Rojas-Laguna, J. M. Estudillo-Ayala   +7 more
doaj   +1 more source

Simultaneous Inclination and Azimuth Sensing Based on a Multi-Core Fiber Fabry–Perot Interferometer with Vernier Effect

Photonics
Azimuth sensing plays a vital role in numerous industrial applications where tilt angle serves as a key parameter. To address the demand for accurate and reliable measurements, we propose an all-fiber two-dimensional inclinometer based on the Vernier ...
Jiayu Liu, Xianrui You, Rongsheng Liu, Dengwang Shi, Rui Zhou, Xueguang Qiao   +5 more
doaj   +1 more source

THE SIMULATION OF A FABRY-PEROT INTERFEROMETER [PDF]

Journal of Astronomy and Space Sciences, 1997
A Fabry-Perot interferometer has a very high (~1,000,000) resolution, so recently this has been widely used for many fields of space science. To understand the working principle of this a mathematical modeling is needed, and to analyze the interferogram ...
Gi-Hyuk Choi, David Rees
doaj