Results 91 to 100 of about 78,821 (320)

Probiotic‐Based Mineralized Living Materials to Produce Antimicrobial Yogurts

Advanced Healthcare Materials, EarlyView.
The self‐assembly and mineralization of collagen in the presence of probiotics produces hybrid living materials that hosts and protects the cells. Intra‐ and interfibrillar mineralization of collagen fibers, as occurring in bone, results, respectively, in a bulk and single‐cell protective layer of cells, that survive in simulated gastric conditions and,
Gloria B. Ramírez‐Rodríguez, Laura Sabio, Laura Cerezo‐Collado, Víctor Garcés, Jose M. Domínguez‐Vera, José M. Delgado‐López   +5 more
wiley   +1 more source

Antireflection microstructures on ZnSe for mid- and far-IR fabricated by femtosecond laser ablation assisted with wet chemical etching

Scientific Reports
Most infrared materials used in high-power systems, such as optical parametric generators, have high values of refractive indices, which result in high Fresnel losses.
Andrei Teslenko, Tatiana Konstantinova, Andrey Bushunov, Artem Ibragimov, Ilya Rodionov, Mikhail Tarabrin   +5 more
doaj   +1 more source

Comparison of Thermal Detector Arrays for Off-Axis THz Holography and Real-Time THz Imaging

Sensors, 2016
In terahertz (THz) materials science, imaging by scanning prevails when low power THz sources are used. However, the application of array detectors operating with high power THz sources is increasingly reported.
Erwin Hack, Lorenzo Valzania, Gregory Gäumann, Mostafa Shalaby, Christoph P. Hauri, Peter Zolliker   +5 more
doaj   +1 more source

Optoelectronic Devices for In‐Sensor Computing

Advanced Materials, EarlyView.
The raw data obtained directly from sensors in the noisy analogue domain is often unstructured, which lacks a predefined format or organization and does not conform to a specific data model. Optoelectronic devices for in‐sensor visual processing can integrate perception, memory, and processing functions in the same physical units, which can compress ...
Qinqi Ren, Chaoyi Zhu, Sijie Ma, Zhaoqing Wang, Jianmin Yan, Tianqing Wan, Weicheng Yan, Yang Chai   +7 more
wiley   +1 more source

SPECTROSCOPIC PROPRIETIES OF CRYSTALS MF2 (M=Cd, Sr, Ba) DOPED TO RARE EARTH IONS

Journal of Fundamental and Applied Sciences, 2015
In the present work, we are interested by studying the spectroscopic properties for optical applications, mainly laser amplification, of MF2 crystals, where M is an alkaline earth (Ba, Sr) or Cadmium (Cd) doped with rare earth ions (Tb3+, Er3+, Ho3+). So
M. Diaf, S. Khiari, K. Labbaci, L. Guerbous, J. P. Jouart   +4 more
doaj   +1 more source

Study on high pressure plasma produced by ArF laser [PDF]

arXiv, 2004
When an ArF excimer laser beam was focused in a high pressure argon gas from 50 to 130 atm, the plasma development is observed by streak camera from side window of chamber. The high pressure ArF laser plasma develops symmetrically and the plasma produced by ArF excimer laser hardly develops as compared with the plasma produced by XeCl.
arxiv  

Pushing Radiative Cooling Technology to Real Applications

Advanced Materials, EarlyView.
Radiative cooling controls surface optical properties for solar and thermal radiation, offering solutions for global warming and energy savings. Despite significant advances, key challenges remain: optimizing optical efficiency, maintaining aesthetics, preventing overcooling, enhancing durability, and enabling scalable production.
Chongjia Lin, Keqiao Li, Meng Li, Benjamin Dopphoopha, Jiongzhi Zheng, Jiazheng Wang, Shanshan Du, Yang Li, Baoling Huang   +8 more
wiley   +1 more source

Mode Competition in Gas and Semiconductor Lasers [PDF]

arXiv, 2003
The output spectrum of both gas and semiconductor lasers usually contains more than one frequency. Multimode operation in gas versus semiconductor lasers arises from different physics. In gas lasers, slow equilibration of the electron populations at different energies makes each frequency an independent single-mode laser. The slow electron diffusion in
arxiv  

Advancements in Understanding the Physicochemical Properties of Reticular Materials: An In Situ and Operando Spectroscopic Perspective

Advanced Materials, EarlyView.
This review explores how in situ and operando spectroscopic techniques reveal the real‐time behavior of reticular materials, including MOFs and COFs. These methods track material formation and functionalization, structural changes, defect formation, dynamic responses to external triggers, and catalytic processes.
Bettina Baumgartner, Anna Wach, Xinwei Ye, Evelyn Ploetz, Bert M. Weckhuysen   +4 more
wiley   +1 more source

Far-infrared free-electron lasers and their applications [PDF]

Contemporary Physics, 2009
Free-electron lasers based on radio-frequency linear accelerators provide an important source of far-infrared radiation which allow exciting experiments that cannot be performed in any other way. Facilities such as FELIX (Nieuwegein, The Netherlands), JFEL (Newport News VA, USA), FELBE (Dresden, Germany), CLIO (Paris, France) and others provide mid ...
openaire   +4 more sources