Near-infrared high-resolution imaging of the galactic center

2007 ◽  
pp. 41-49
Author(s):  
A. Eckart ◽  
R. Genzel ◽  
R. Hofmann ◽  
B. J. Sams ◽  
L. E. Tacconi-Garman
Keyword(s):  
High Resolution ◽  
Near Infrared ◽  
Galactic Center ◽  
High Resolution Imaging ◽  
Resolution Imaging

scholarly journals Near-infrared High-resolution Imaging Polarimetry of FU Ori-type Objects: Toward a Unified Scheme for Low-mass Protostellar Evolution

2018 ◽  
Vol 864 (1) ◽  
pp. 20 ◽  
Author(s):  
Michihiro Takami ◽  
Guangwei Fu ◽  
Hauyu Baobab Liu ◽  
Jennifer L. Karr ◽  
Jun Hashimoto ◽  
...  
Keyword(s):  
High Resolution ◽  
Near Infrared ◽  
High Resolution Imaging ◽  
Imaging Polarimetry ◽  
Low Mass ◽  
Resolution Imaging ◽  
Fu Ori

scholarly journals Structural and Morphological Properties of Ultraluminous Infrared Galaxies at 1 < z < 3

2015 ◽  
Vol 24 (3) ◽  
Author(s):  
Guanwen Fang ◽  
Zhongyang Ma ◽  
Yang Chen ◽  
Xu Kong
Keyword(s):  
High Resolution ◽  
Near Infrared ◽  
Hubble Space Telescope ◽  
Morphological Properties ◽  
Wide Field ◽  
High Resolution Imaging ◽  
Infrared Galaxies ◽  
Morphology And Structure ◽  
Ultraluminous Infrared Galaxies ◽  
Resolution Imaging

AbstractUsing the Hubble Space Telescope (HST)/Wide Field Camera 3 (WFC3) near-infrared high-resolution imaging from the 3D-HST survey, we analyze the morphology and structure of 502 ultraluminous infrared galaxies (ULIRGs;

Progress in design, nanofabrication and performance of metalenses

2021 ◽  
Author(s):  
Zhenghao WANG ◽  
Yongling WU ◽  
Dongfeng QI ◽  
Wenhui YU ◽  
Hongyu ZHENG
Keyword(s):  
High Resolution ◽  
Near Infrared ◽  
Visible Range ◽  
Infrared Range ◽  
High Dispersion ◽  
High Resolution Imaging ◽  
Direct Writing ◽  
Nanoscale Structures ◽  
Resolution Imaging ◽  
And Performance

Abstract Metalens has been shown to overcome the diffraction limit of conventional optical lenses to achieve sub-wavelength resolution. Due to its planar structure and lightweight, metalens has the potential applications in the manufacture of flat lenses for cameras and other high resolution imaging optics. However, currently reported metalenses have low focusing efficiencies: 26% - 68% in THz and GHz range, 1% - 91% in near infrared range (NIR), and 5% - 91.6% in the visible range. Far field imaging in the visible light is essential for use in camera and mobile phones, which requires a complex metalens structure with multi-layers of alternating metal and dielectric layers. Most of the reported metalenses work in a single wavelength, mainly due to the high dispersion characteristics of the diffractive metalenses. It remains a challenge to realize high resolution imaging for a wide wavelength band in particular in the visible range. In this review, we report the state-of-the-art in metalens design principle, types of nanoscale structures, and various fabrication processes. We introduce femtosecond laser direct writing based on two-photon polymerization as an emerging nanofabrication technology. We provide an overview of the optical performance of the recently-reported metalenses and elaborate the major research and engineering challenges and future prospects.

Near-infrared high-resolution imaging polarimetry of the Red Rectangle

2003 ◽  
Author(s):  
Koji Murakawa ◽  
Motohide Tamura ◽  
Hiroshi Suto ◽  
Takashi Miyata ◽  
Tim M. Gledhill ◽  
...  
Keyword(s):  
High Resolution ◽  
Near Infrared ◽  
High Resolution Imaging ◽  
Imaging Polarimetry ◽  
Resolution Imaging
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