Results 71 to 80 of about 15,014 (299)

The Evolution of Aerosol Jet Printing, A Review: Enhancing Material Versatility and Improvements for Next‐Generation Applications

Advanced Materials Technologies, EarlyView.
Aerosol Jet Printing (AJP) has emerged as a versatile additive manufacturing technique for high‐resolution, conformal, and multi‐material printing. This review highlights advances in printable materials, substrate compatibility, post‐processing, characterization, and process innovations, while critically discussing current challenges and future ...
Chandrachur Chatterjee, Rocco Lupoi, Michael J. Gibbons   +2 more
wiley   +1 more source

Luminescence spectra of a quantum-dot cascade laser [PDF]

Applied Physics Letters, 2001
A quantum cascade laser in which the quantum wells in the active regions are replaced by quantum dots with their atom-like discrete energy levels is an interesting system with which to study novel features in optical spectroscopy. We study structures suitable for diagonal lasing transitions in coupled dots, and vertical transitions in a single dot. The
Apalkov, V., Chakraborty, T.
openaire   +3 more sources

Mitigating Efficiency Roll‐Off in Phosphor‐Sensitized Fluorescence OLEDs via Molecular Polarity‐Based Benzofuropyridine Host Engineering

Advanced Optical Materials, EarlyView.
Positional isomerism in dibenzofuran‐based n‐type hosts modulates molecular polarity, charge‐transport balance, and emissive‐layer packing. The higher‐polarity BFPDB‐2 host facilitates efficient energy funneling, reduced aggregation, and preferential dipole orientation, leading to phosphor‐sensitized fluorescence OLEDs with enhanced external quantum ...
Nargis Ali, Xuyao Song, Yun‐Hi Kim, Min Chul Suh   +3 more
wiley   +1 more source

Optimization of quantum cascade laser operation by geometric design of cascade active band in open and closed models

Condensed Matter Physics, 2013
Using the effective mass and rectangular potential approximations, the theory of electron dynamic conductivity is developed for the plane multilayer resonance tunnel structure placed into a constant electric field within the model of open nanosystem, and
M.V. Tkach, Ju.O. Seti, I.V. Boyko, O.M. Voitsekhivska   +3 more
doaj   +1 more source

Tunable Microcavity-Stabilized Quantum Cascade Laser for Mid-IR High-Resolution Spectroscopy and Sensing

Sensors, 2016
The need for highly performing and stable methods for mid-IR molecular sensing and metrology pushes towards the development of more and more compact and robust systems.
Simone Borri, Mario Siciliani de Cumis, Giacomo Insero, Saverio Bartalini, Pablo Cancio Pastor, Davide Mazzotti, Iacopo Galli, Giovanni Giusfredi, Gabriele Santambrogio, Anatoliy Savchenkov, Danny Eliyahu, Vladimir Ilchenko, Naota Akikusa, Andrey Matsko, Lute Maleki, Paolo De Natale   +15 more
doaj   +1 more source

Oral Bioinspired Peroxisome‐Engineered Probiotics for Modulating Gut Microbiota Homeostasis and Alleviating Cardiac Chemotherapy Toxicity

Advanced Science, EarlyView.
This study developed an oral bioinspired peroxisome‐engineered probiotic (BPEP) by anchoring lipid‐encapsulated ruthenium nanozymes onto Escherichia coli Nissle 1917, utilizing probiotics to deliver nanozymes to the intestinal barrier for reactive oxygen species/reactive nitrogen species elimination, tight junction restoration, and gut microbiota ...
Shuyu Wang, Xiaowan Fan, Chao Zhang, Shuai Han, Yike Guo, Yuchen Wang, Wei Wang, Junyue Xing, Ying Liu, Wei Jiang, Xiaoying Chen   +10 more
wiley   +1 more source

Towards Broadband Mid-Infrared Fully Integrated Protein Sensor employing a Quantum Cascade Laser and Quantum Cascade Detector

, 2021
We present a combination of quantum cascade laser and quantum cascade detectors for broadband mid-IR spectroscopy sensing of bovine milk proteins in aqueous ...
Hinkov, Borislav, Strasser, Gottfried, Lendl, Bernhard, Dabrowska, Alicja, Schwaighofer, Andreas, David, Mauro, Harrer, Andreas   +6 more
core  

Ultrabroadband air-dielectric double-chirped mirrors for laser frequency combs

Light: Science & Applications
Dispersion engineering is critical for the creation of integrated broadband laser frequency combs. In the long wavelength infrared range (LWIR, 8-13 µm), frequency combs based on quantum cascade lasers are attractive since they are monolithic ...
Tianyi Zeng, Yamac Dikmelik, Feng Xie, Kevin Lascola, David Burghoff, Qing Hu   +5 more
doaj   +1 more source

Study of Free‐Space Optical Quantum Network: Review and Prospectives

Advanced Science, EarlyView.
Free from the constraints of fiber connections, free‐space quantum network enables longer and more flexible quantum network connections. This review summarizes and comparatively analyzes free‐space quantum network experiments based on ground stations, satellites, and mobile platforms.
Hua‐Ying Liu, Zhenda Xie, Shining Zhu
wiley   +1 more source

Short wavelength distributed feedback quantum cascade laser

, 2009
We report on a lateral grating, distributed feedback quantum cascade (QC) laser operating at 3.45 mu m with the intended application of trace gas detection.
T. J. Slight, Passaro, V.M.N., J. W. Cockburn, Revin, D.G., C. N. Ironside, Steer, M.J., G. Tandoi, De Leonardis, F., M. J. Steer, Slight, T.J., Langton, C., V. M. N. Passaro, Tandoi, G., Cockburn, J.W., D. G. Revin, Ironside, C.N., S. Y. Zhang, McKee, A., I. Eddie, T. SLIGHT, PASSARO, Vittorio, F. De Leonardis, A. McKee, C. Langton, DE LEONARDIS, Francesco, Zhang, S.Y., Eddie, I.   +26 more
core   +1 more source