Results 111 to 120 of about 238,857 (343)

Photothermal Fluctuations as a Fundamental Limit to Low-Frequency Squeezing in a Degenerate Optical Parametric Amplifier

, 2005
We study the effect of photothermal fluctuations on squeezed states of light through the photo-refractive effect and thermal expansion in a degenerate optical parametric amplifier (OPA).
A. E. Siegman, C. Fabre, David E. McClelland, Eugeniy E. Mikhailov, H. J. Kimble, Keisuke Goda, Kirk McKenzie, Nergis Mavalvala, Ping Koy Lam   +8 more
core   +1 more source

Photon Avalanching Nanoparticles: The Next Generation of Upconverting Nanomaterials?

Advanced Functional Materials, EarlyView.
This Perspective outlines the mechanistic foundations that enable photon‐avalanche (PA) behavior in lanthanide nanomaterials and contrasts them with emerging application spaces and forward‐looking design strategies. By bridging threshold engineering, energy‐transfer dynamics, and materials engineering, we provide a coherent roadmap for advancing the ...
Kimoon Lee, Yunseo Kim, Hyeong‐ku Jo, Dongjoon Yoon, Byeonghyeok Im, WonJeong Yu, Eui‐Rim On, Changhwan Lee   +7 more
wiley   +1 more source

Disordered Carbon Shells Enable Shape Dependent Fluorescence Enhancement in Nanodiamond Quantum Sensors Revealed by Correlative TEM–Fluorescence Microscopy

Advanced Functional Materials, EarlyView.
Molten KNO2 treatment induces a lowrefractive index disordered carbon shell on fluorescent nanodiamonds, enhancing fluorescence emission while preserving spin coherence. Machine learningassisted correlative TEMPL enables direct single‐particle resolution of this enhancement relative to air‐oxidized nanodiamonds of similar morphology, establishing a ...
Parkarsh Kumar, Tom Vaillant, Mehran Kianinia, Haotian Wen, Adam Stewart, Peter J. Reece, Hugues A. Girard, Jean‐Charles Arnault, Huan‐Cheng Chang, Igor Aharonovich, Shery L. Y. Chang   +10 more
wiley   +1 more source

Amplifier circuit for a silicon-photomultiplier-coupled plastic scintillator detector

He jishu
BackgroundThe silicon photomultiplier (SiPM) is sensitive to environmental noise, its performance is greatly affected by ambient noise.PurposeThis study aims to design a negative-feedback selective amplifier circuit for SiPM coupled plastic scintillator ...
TANG Chenyang, CHEN Xinnan, GAO Chunyu, LI Yupeng, WANG Xiao, TANG Xiuzhang   +5 more
doaj   +1 more source

Wideband SiGe-HBT Low-Noise Amplifier with Resistive Feedback and Shunt Peaking. [PDF]

Sensors (Basel), 2023
Song I, Ryu G, Jung SH, Cressler JD, Cho MK.   +4 more
europepmc   +1 more source

Study on Noise Performance Enhancement of Tunable Low Noise Amplifier Using CMOS Active Inductor [PDF]

, 2011
Youngkyu Sung, Kyung‒Sik Yoon
openalex   +1 more source

Regulated Ion‐Diffusion Hydrogels for Subtle and Multimodal Temperature‐Strain Sensing in Wound Monitoring

Advanced Functional Materials, EarlyView.
A soft, dual‐channel hydrogel patch enables simultaneous detection of wound temperature and strain by integrating ion‐diffusion‐mediated thermoelectric and resistive sensing. The conformal design maintains stable performance during motion, capturing subtle inflammatory and mechanical changes for continuous wound monitoring.
Yu Fang, Xinglong Pan, Zhiwei Li, Wanheng Lu, Chang Liu, Yi Zhou, Guo Tian, Ghim Wei Ho   +7 more
wiley   +1 more source

Artificial Neural Network Modeling of a CMOS Differential Low-Noise Amplifier Using the Bayesian Regularization Algorithm. [PDF]

Sensors (Basel), 2023
Subburaman B, Thangaraj V, Balu V, Pandyan UM, Kulkarni J.   +4 more
europepmc   +1 more source

A minimum-noise, low temperature cooled parametric amplifier system with a simulated closed-cycle refrigerator system monthly report no. 10, 1 apr. - 1 may 1965 [PDF]

Minimum noise, low temperature, cooled parametric amplifier with simulated closed-cycle refrigerator ...

core   +1 more source