Results 261 to 270 of about 84,369 (338)

Understanding Interfacial Photoswitching Mechanisms in Atomically‐Thin TMD‐Spiropyran Hybrids

Advanced Materials Technologies, EarlyView.
Photochromic molecules can effectively modulate the optoelectronic properties of atomically thin transition metal dichalcogenide semiconductors. Spiropyran that switches its chemical configuration upon alternating UV and visible irradiation enables light‐programmable optoelectronic devices.
Sewon Park, Jaehoon Ji, Michael Brophy, John Audi, Jean Rouillon, Carlos Benitez‐Martin, Joakim Andréasson, Jeong Ho You, Jong Hyun Choi   +8 more
wiley   +1 more source

Simultaneous photoacoustic detection of coal spontaneous combustion indicator gases using single laser and absorption feature selection-optimized partial least squares regression. [PDF]

Photoacoustics
Zhang L, Mou Z, Liu L, Huan H, Zhang X, Wang Y, Zhang W, Liang Y, Xu H, Ma Y, Mandelis A.   +10 more
europepmc   +1 more source

Thickness‐Dependent Infrared Emissivity of Ultrathin Freestanding MoSiN Nanocomposite Membranes

Advanced Optical Materials, EarlyView.
ABSTRACT Metals and dielectrics show opposite trends in thickness‐dependent infrared emissivity: metallic films exhibit a rise in emissivity below a critical thickness, while dielectric films show a corresponding decline. For applications demanding both high emissivity and mechanical strength in membranes with nanoscale thickness, combining these ...
Reethu Sebastian, Amrid Amnache, Nadi Braidy, Luc G. Fréchette   +3 more
wiley   +1 more source

Successful prehospital double sequential external defibrillation in a 15-year-old with hypertrophic cardiomyopathy. [PDF]

Resusc Plus
Weilbacher F, Matthé D, Fricke J, Amr E, Dietrich M, Popp E, Katzenschlager S.   +6 more
europepmc   +1 more source

Probing Near‐Field EM Fluctuations in Superparamagnetic CoFeB With NV Quantum Dephasometry

Advanced Optical Materials, EarlyView.
We non‐invasively investigate the superparamagnetic spin dynamics of a 1.1 nm CoFeB layer by probing its near‐field EM fluctuations using NV centers‐based quantum dephasometry. Our findings are further supported by theoretical modeling and SQUID‐based magnetization characterization. These results provide critical insight into the magnetization dynamics
Shoaib Mahmud, Wei Zhang, Pronoy Das, Angshuman Deka, Wenbo Sun, Zubin Jacob   +5 more
wiley   +1 more source

A MEMS Microbolometer-Based ATR Mid-Infrared Sensor for Direct Dissolved CO₂ Detection and UV-Induced Sediment Carbon Assay in Aquatic Environments. [PDF]

Sensors (Basel)
Hasan MR, Nikeghbal A, Tran S, Sium FS, Noh S, Kim H, Mastrangelo CH.   +6 more
europepmc   +1 more source

Spacer‐Less Substrate‐Integrated Metasurface for Near‐Unity Terahertz Absorption

Advanced Optical Materials, EarlyView.
ABSTRACT Although conventional metal‐insulator‐metal (MIM) terahertz (THz) absorbers can provide near‐unity absorption, their multilayer stacks inevitably introduce additional thickness, mass, and residual stress, which limit their compatibility with THz thermal sensing platforms.
Zihao Zhao, Kazuho Harada, Qian Liu, Isao Morohashi, Xu Fang, Kazuhiko Hirakawa, Ya Zhang   +6 more
wiley   +1 more source

High precision measurements of the hyperfine structure of Vanadium ions in the ultraviolet range. [PDF]

Sci Rep
Karadimas A, Bettaney D, Campbell P, Cheal B, Chinthakayala S, de Groote R, Koszorús Á, Moore I, Raggio A, Warbinek J.   +9 more
europepmc   +1 more source

On‐Chip Saturated Absorption of CO2 in a Silicon‐on‐Sapphire Waveguide

Advanced Optical Materials, EarlyView.
We demonstrate the first saturated absorption of a molecular gas on a planar photonic chip. By coupling carbon dioxide with the tightly confined light of a silicon‐on‐sapphire waveguide, we achieve optical saturation using only milliwatt powers. This breakthrough provides a practical, low‐power foundation for creating ultra‐compact mid‐infrared ...
Shahar Edelstein, Noa Mazurski, Uriel Levy   +2 more
wiley   +1 more source