Results 61 to 70 of about 3,928,586 (321)

Covert sensing using floodlight illumination [PDF]

, 2018
We propose a scheme for covert active sensing using floodlight illumination from a THz-bandwidth amplified spontaneous emission (ASE) source and heterodyne detection.
Bash, Boulat A., Datta, Animesh, Gagatsos, Christos N., Guha, Saikat, Zhang, Zheshen   +4 more
core   +3 more sources

Mid-Infrared Photoacoustic Detection of Glucose in Human Skin: Towards Non-Invasive Diagnostics

Sensors, 2016
Diabetes mellitus is a widespread metabolic disease without cure. Great efforts are being made to develop a non-invasive monitoring of the blood glucose level.
Jonas Kottmann, Julien M. Rey, Markus W. Sigrist   +2 more
doaj   +1 more source

Effective Excess Noise Suppression in Continuous-Variable Quantum Key Distribution through Carrier Frequency Switching

Entropy, 2023
Continuous-variable quantum key distribution (CV-QKD) is a promising protocol that can be easily integrated with classical optical communication systems.
Jing Dong, Tao Wang, Zhuxuan He, Yueer Shi, Lang Li, Peng Huang, Guihua Zeng   +6 more
doaj   +1 more source

Distributed quantum sensing in a continuous variable entangled network

, 2019
Networking plays a ubiquitous role in quantum technology. It is an integral part of quantum communication and has significant potential for upscaling quantum computer technologies that are otherwise not scalable. Recently, it was realized that sensing of
Andersen, Ulrik L., Borregaard, Johannes, Breum, Casper R., Christandl, Matthias, Gehring, Tobias, Guo, Xueshi, Izumi, Shuro, Larsen, Mikkel V., Neergaard-Nielsen, Jonas S.   +8 more
core   +1 more source

Challenges in Open-air Microwave Quantum Communication and Sensing

, 2018
Quantum communication is a holy grail to achieve secure communication among a set of partners, since it is provably unbreakable by physical laws. Quantum sensing employs quantum entanglement as an extra resource to determine parameters by either using ...
Deppe, Frank, Fedorov, Kirill G., Sanz, Mikel, Solano, Enrique   +3 more
core   +1 more source

Spatial and Temporal Variations of Thermal Contrast in the Planetary Boundary Layer

Journal of Remote Sensing
High-spectral resolution infrared sounders on board satellites can measure atmospheric trace gases confined to the planetary boundary layer (PBL). However, their sensitivity to the PBL depends on the temperature difference between the surface and the ...
Tommaso Di Gioacchino, Lieven Clarisse, Lara Noppen, Martin Van Damme, Sophie Bauduin, Pierre Coheur   +5 more
doaj   +1 more source

Controllable Formation and Real-Time Characterization of Single Microdroplets Using Optical Tweezers

Micromachines, 2022
Existing preparation methods for microdroplets usually require offline measurements to characterize single microdroplets. Here, we report an optical method used to facilitate the controllable formation and real-time characterization of single ...
Shuai Li, Hanlin Zhang, Wenqiang Li, Yizhou Zhang, Xiaowen Gao, Haiqing Liu, Nan Li, Huizhu Hu   +7 more
doaj   +1 more source

Dephasing in an Aharonov-Bohm interferometer containing a lateral double quantum dot induced by coupling with a quantum dot charge sensor

, 2010
We theoretically investigated the dephasing in an Aharonov-Bohm interferometer containing a lateral double quantum dot induced by coupling with a quantum dot charge sensor. We employed the interpolative 2nd-order perturbation theory to include the charge
Kubo, T., Tarucha, S., Tokura, Y.
core   +1 more source

Integrated quantum optical networks based on quantum dots and photonic crystals [PDF]

, 2011
Single solid-state optical emitters have quantum mechanical properties that make them suitable for applications in information processing and sensing. Most of these quantum technologies rely on the capability to integrate the emitters in reliable solid ...
Bajcsy, Michal, Englund, Dirk, Faraon, Andrei, Kim, Erik, Majumdar, Arka, Vučković, Jelena   +5 more
core   +1 more source

Measurement-induced nonlocal entanglement in a hot, strongly-interacting atomic system [PDF]

, 2020
Quantum technologies use entanglement to outperform classical technologies, and often employ strong cooling and isolation to protect entangled entities from decoherence by random interactions.
Jiménez Martínez, Ricardo, Kong, Jia, Lucivero, Vito Giovanni, Mitchell, Morgan W., Troullinou, Charikleia, Tóth, Géza   +5 more
core   +2 more sources