Results 101 to 110 of about 141,990 (293)

Mid-Infrared Imaging of NGC 6334 I [PDF]

, 2002
We present high-resolution (
Caswell J. L., Cesaroni R., Charles M. Telesco, Ellingsen S. P., Forster J. R., James M. De Buizer, James T. Radomski, Neckel T., Persi P., Persi P., Robert K. Pina, Tapia M.   +11 more
core   +2 more sources

Mid-infrared upconversion spectroscopy [PDF]

Journal of the Optical Society of America B, 2016
Mid-infrared (MIR) spectroscopy is emerging as an attractive alternative to near-infrared or visible spectroscopy. MIR spectroscopy offers a unique possibility to probe the fundamental absorption bands of a large number of gases as well as the vibrational spectra of complex molecules.
Tidemand-Lichtenberg, Peter, Dam, Jeppe Seidelin, Andersen, H. V., Høgstedt, Lasse, Pedersen, Christian   +4 more
openaire   +2 more sources

Elucidating the Role of Surface Ligands on the Oxidative Etching of Au Bipyramids During Photothermia Using Liquid Cell Transmission Electron Microscopy

Advanced Functional Materials, EarlyView.
Gold bipyramids can act as efficient plasmonic nanoheaters, but they often reshape during laser heating. This study shows that oxygen nanobubbles drive oxidative etching and that surface ligands control stability. CTAB‐ and citrate‐coated particles blunt and lose optical performance, whereas polystyrene sulfonate preserves shape and heating by ...
Irene López‐Sicilia, Valentina Girelli Consolaro, Sophie Marbach, Nancy Rahbany, Grégoire Petit, Ovidiu Ersen, Juan J. Giner‐Casares, Ali Abou‐Hassan   +7 more
wiley   +1 more source

GeAsSeTe/GeAsSe Pedestal Waveguides for Long-Wave Infrared Tunable on-Chip Spectroscopy

Photonics
A dry-etched pedestal chalcogenide waveguide platform, designed for use in long-wave IR spectrometer applications, is demonstrated, fabricated and optically characterized.
Vasileios Mourgelas, Sirawit Boonsit, James Shafto Wilkinson, Ganapathy Senthil Murugan   +3 more
doaj   +1 more source

Mid-infrared group IV nanowire laser. [PDF]

Sci Adv
Semiconductor nanowires have shown great potential for enabling ultracompact lasers for integrated photonics platforms. Despite the impressive progress in developing nanowire lasers, their integration into Si photonics platforms remains challenging largely because of the use of III-V and II-VI semiconductors as gain media. Recently, group IV nanowires,
Kim Y, Assali S, Ge J, Koelling S, Luo M, Luo L, Joo HJ, Tan J, Shi X, Ikonic Z, Li H, Moutanabbir O, Nam D.   +12 more
europepmc   +6 more sources

Mid Infrared Polarisation of Ultraluminous Infrared Galaxies [PDF]

, 2001
The mid infrared polarisation properties of four Ultraluminous Infrared Galaxies (ULIRGs) have been investigated by broad band filter observations with the ISOCAM instrument on board the Infrared Space Observatory (ISO).
A. Efstathiou, Antonucci, Antonucci, Barger, Carilli, Cesarsky, Clavel, Downes, Efstathiou, Efstathiou, Efstathiou, Genzel, Goldader, Gonatas, Granato, Greaves, Haas, Hall, Heisler, Hildebrand, Hiltner, Hughes, Jones, Kawara, Kessler, Koningl, Krolik, Krügel, Leach, Minchin, Novak, Ott, Pier, Puget, R. Siebenmorgen, Rigopoulou, Sanders, Sargent, Siebenmorgen, Siebenmorgen, Skinner, Smith, Smith, Soifer, Sopp, Veilleux, Ward-Thompson   +46 more
core   +2 more sources

The Role of Ultra‐Thin Buffer Layers for Achieving Ultra‐Low Dark Currents in Single‐Component Organic Photodetectors

Advanced Functional Materials, EarlyView.
Here, SubNc single‐component organic photodiodes (SC‐OPDs) are investigated, which achieve highly competitive performance metrics, including high EQE, ultra‐low JD, and high specific detectivity (D*). This study emphasizes the critical role of an organic buffer layer in studying the interface energetics and effects to achieve state‐of‐the‐art ...
Anncharlott Kusber, Ying Sun, Jakob Wolansky, Louis Conrad Winkler, Anna‐Lena Hofmann, Fred Kretschmer, Hrisheekesh Thachoth Chandran, Tianyi Zhang, Mike Hambsch, Stefan C. B. Mannsfeld, Karl Leo, Ji‐Seon Kim, Johannes Benduhn   +12 more
wiley   +1 more source

Simultaneous Mid-Infrared Gas Sensing and Upconversion Based on Third Harmonic Generation in Cascaded Waveguides

IEEE Photonics Journal, 2020
The performance of conventional gas sensors based on light absorption in the mid-infrared are limited by the high-cost and low efficiency of photon detection at these wavelengths. In this paper, cascaded suspended waveguides are proposed and analyzed for
Jianxing Pan, Zhenxing Chen, Tianye Huang, Shuwen Zeng, Zhuo Cheng, Pan Huang, Xiang Zhao, Perry Ping Shum, Gilberto Brambilla   +8 more
doaj   +1 more source

Sirius B Imaged in the Mid-Infrared: No Evidence for a Remnant Planetary System

, 2011
Evidence is building that remnants of solar systems might orbit a large percentage of white dwarfs, as the polluted atmospheres of DAZ and DBZ white dwarfs indicate the very recent accretion of metal-rich material. (Zuckerman et al. 2010).
Andrew J. Skemer, Bessel, Brinkworth, Farihi, Hartkopf, Holberg, Jura, Jura, Laird M. Close, Mullally, Perryman, Reach, von Hippel, Zuckerman, Zuckerman   +14 more
core   +1 more source

Atomic Layer Deposition in Transistors and Monolithic 3D Integration

Advanced Functional Materials, EarlyView.
Transistors are fundamental building blocks of modern electronics. This review summarizes recent progress in atomic layer deposition (ALD) for the synthesis of two‐dimensional (2D) metal oxides and transition‐metal dichalcogenides (TMDCs), with particular emphasis on their enabling role in monolithic three‐dimensional (M3D) integration for next ...
Yue Liu, Taoyu Zou, Cheng‐Yan Xu, Liang Zhen, Yang Li, Yong‐Young Noh   +5 more
wiley   +1 more source