Results 61 to 70 of about 158,783 (289)

NEOWISE Variability of the New Gaia Herbig Ae/Be and Classical Be Stars—Variability Sample and Statistical Analysis

The Astrophysical Journal Supplement Series, 2023
Light variability is an essential attribute of young stellar objects (YSOs) at the pre-main-sequence (PMS) stage, which can be treated as an indicator to trace star formation.
Ying Mei, Shi-Ming Song, Jun-Ting Liu, Lucas J. Hyland, Xi Chen   +4 more
doaj   +1 more source

Near-infrared Linear Polarization of Ultracool Dwarfs

, 2011
We report on near-infrared J- and H-band linear polarimetric photometry of eight ultracool dwarfs (two late-M, five L0-L7.5, and one T2.5) with known evidence for photometric variability due to dust clouds, anomalous red infrared colors, or low-gravity ...
A. Manchado, Allers, Allers, Alves, Ardila, Artigau, Artigau, B. Goldman, Basri, Bernat, Blake, Burgasser, Burrows, Chabrier, Cieza, Cruz, Fazio, Gelino, Gizis, Golimowski, Gorlova, Hashimoto, Herczeg, J. A. Acosta-Pulido, J. A. Caballero, Jayawardhana, Jayawardhana, K. Peña Ramírez, Kandori, Kirkpatrick, Kirkpatrick, Knapp, Kraus, Kusakabe, Leggett, Luhman, Luhman, M. R. Zapatero Osorio, Marley, Martín, McGovern, McLean, McLean, Mohanty, Mohanty, Morales-Calderón, Muzerolle, Patten, R. Rebolo, Reiners, Reiners, Rieke, Schmidt, Scholz, Sengupta, Sengupta, Sengupta, Simmons, Skrutskie, Stauffer, V. J. S. Béjar, Wright, Wright, Zapatero Osorio, Zapatero Osorio, Zapatero Osorio   +65 more
core   +1 more source

An Engineered Living Material With Pro‐Angiogenic Activity Inducible by Near‐Infrared Light

Advanced Functional Materials, EarlyView.
NIR‐responsive engineered living materials (ELMs) for controlled angiogenesis: Near‐infrared (800 nm) light activates engineered probiotic bacteria within alginate‐based living materials to secrete a blood vessel‐regenerating protein. The released protein promotes pro‐angiogenic effects in endothelial networks and chick chorioallantoic membranes.
Anwesha Chatterjee, Stefanie S. M. Meier, Sara Trujillo, Andreas Möglich, Shrikrishnan Sankaran   +4 more
wiley   +1 more source

Mid‐Infrared Optoelectronic Waveguide Devices with 2D Materials

Advanced Physics Research
Mid‐infrared (Mid‐IR) integrated optics has tremendous applications in spectroscopic sensing, imaging, and ranging. Compared with visible light and near‐IR wavelengths, the study of mid‐IR photonic integrated devices is limited due to the need for more ...
Liqiang Qi, Tianping Xu, Zhengkun Xing, Si Chen, Zunyue Zhang, Tiegen Liu, Zhenzhou Cheng   +6 more
doaj   +1 more source

Black Silicon Revisited as an Ultrabroadband Perfect Infrared Absorber over 20 μm Wavelength Range

Advanced Photonics Research, 2023
Black silicon properties are investigated in the wavelength range extending from 0.2 to 25 μm with a focus on the mid‐infrared (MIR). It is demonstrated that concurrently increasing the initial level of doping of bare silicon, with given limits, enables ...
Sreyash Sarkar, Ahmed A. Elsayed, Yasser M. Sabry, Frédéric Marty, Jérémie Drévillon, Xiaoyi Liu, Zhongzhu Liang, Elodie Richalot, Philippe Basset, Elyes Nefzaoui, Tarik Bourouina   +10 more
doaj   +1 more source

Germanium-on-silicon mid-infrared arrayed waveguide grating multiplexers [PDF]

, 2013
In this letter, we describe the use of a germanium-on- silicon waveguide platform to realize an arrayed waveguide grating (AWG) operating in the 5 mu m wavelength range, which can be used as a wavelength multiplexer for mid-infrared (midIR) light engines
Aditya Malik, Gunther Roelkens, Joris Van Campenhout, Muhammad Muneeb, Roger Loo, Shibnath Pathak, Student Member, Yosuke Shimura   +7 more
core   +2 more sources

Amyloidogenic Peptide Fragments Designed From Bacterial Collagen‐like Proteins Form Hydrogel

Advanced Functional Materials, EarlyView.
This study identified amyloidogenic sequence motifs in bacterial collagen‐like proteins and exploited these to design peptides that self‐assemble into β‐sheet fibers and form hydrogels. One hydrogel supported healthy fibroblast growth, showing promise for biocompatible materials. Our work demonstrates that bacterial sequences can be harnessed to create
Vamika Sagar, Xuen J Ng, Lukas Lechel, Ashish Chand Rajwar, Hendrik Bargel, Abhishek A. Jalan   +5 more
wiley   +1 more source

Dispersion Analysis of Silver Thiogallate in a Broad Mid‐Infrared Range

Advanced Photonics Research
Nonlinear optical materials designed for mid‐infrared applications gain increasing interest in photonics and quantum‐optical research. However, many of these materials remain unexplored in the broad mid‐infrared range due to the limited availability of ...
Evgeniy S. Zatsepin, Artem S. Sabanin, Dmitriy V. Badikov, Sergei P. Kulik, Anna V. Paterova   +4 more
doaj   +1 more source

A 100 Hz, 4.71 mJ, 3.8 μm, narrow-linewidth, electro-optic Q-switched self-optical parametric oscillator based on Nd:MgO:PPLN crystal

High Power Laser Science and Engineering
This paper introduces a high single-pulse energy, narrow-linewidth mid-infrared self-optical parametric oscillator (mid-IR SOPO) with a cavity length of 120 mm and a Nd:MgO:PPLN crystal.
Rui Zhao, Shuang Wu, Le Zhang, Hang Liu, Zijian Wang, Chao Wang, Yongji Yu, Guangyong Jin   +7 more
doaj   +1 more source

Laser Based Mid-Infrared Spectroscopic Imaging – Exploring a Novel Method for Application in Cancer Diagnosis [PDF]

, 2011
A number of biomedical studies have shown that mid-infrared spectroscopic images can provide both morphological and biochemical information that can be used for the diagnosis of cancer.
McCrow, Andrew, McCrow, Andrew
core   +1 more source