Results 71 to 80 of about 33,443 (166)

Lithium Niobate Quadratic Integrated Nonlinear Photonics: Enabling Ultra‐Wide Bandwidth and Ultrafast Photonic Engines

open access: yesNanophotonics, Volume 15, Issue 9, 13 May 2026.
This perspective surveys emerging quantum and classical photonic applications across operating wavelengths and timescales, highlighting persistent technological gaps in integrated light sources. We examine the unique advantages of quadratic nonlinear photonics on the thin‐film lithium niobate (TFLN) platform and discuss strategies for realizing ...
Meng Tian   +7 more
wiley   +1 more source

Two superluminous supernovae from the early universe discovered by the Supernova Legacy Survey

open access: yes, 2013
We present spectra and lightcurves of SNLS 06D4eu and SNLS 07D2bv, two hydrogen-free superluminous supernovae discovered by the Supernova Legacy Survey. At z = 1.588, SNLS 06D4eu is the highest redshift superluminous SN with a spectrum, at M_U = -22.7 is
Astier, P.   +17 more
core   +3 more sources

Apollo telescope mount: A partial listing of scientific publications, supplement 2 [PDF]

open access: yes
Reports are compilations of bibliographies from the principal investigator groups of the Apollo Telescope Mount (Skylab solar observatory facility) that gathered data from May 28, 1973, to February 8, 1974.
Reynolds, J. M., Snoddy, W. C.
core   +1 more source

Candidate Type II Quasars at 2 < z < 4.3 in the Sloan Digital Sky Survey III

open access: yes, 2013
At low redshifts, dust-obscured quasars often have strong yet narrow permitted lines in the rest-frame optical and ultraviolet, excited by the central active nucleus, earning the designation Type II quasars.
Alexandroff, Rachael   +14 more
core   +3 more sources

Origin of Life

open access: yes, 2012
The evolution of life has been a big enigma despite rapid advancements in the fields of biochemistry, astrobiology, and astrophysics in recent years.
A. Gibbons   +46 more
core   +1 more source

Apollo-Soyuz pamphlet no. 3: Sun, stars, in between [PDF]

open access: yes, 1977
The structure of the sun and its surface temperature and brightness are discussed as background for explaining the ASTP joint experiment to photograph the solar corona from Soyuz while the Apollo spacecraft created an artificial eclipse by blocking out ...
From, T. P., Page, L. W.
core   +1 more source

The Robo-AO-2 facility for rapid visible/near-infrared AO imaging and the demonstration of hybrid techniques [PDF]

open access: yes, 2018
We are building a next-generation laser adaptive optics system, Robo-AO-2, for the UH 2.2-m telescope that will deliver robotic, diffraction-limited observations at visible and near-infrared wavelengths in unprecedented numbers.
Baranec, Christoph   +25 more
core   +1 more source

Apollo-Soyuz test project Extreme Ultraviolet Telescope MA-083 [PDF]

open access: yes
Follow-on studies to the Apollo-Soyuz Extreme Ultraviolet Telescope experiment (MA-083) include analyses of individual target stars or classes of stars, not only with regard to the EUV data but also in connection with theoretical models and observations ...
Bowyer, C. S.
core   +1 more source

Astronomy: Starbursts near and far

open access: yes, 2010
Observations of intensely bright star-forming galaxies both close by and in the distant Universe at first glance seem to emphasize their similarity.
D Calzetti   +12 more
core   +1 more source

The Emergence of the Modern Universe: Tracing the Cosmic Web [PDF]

open access: yes, 1999
This is the report of the Ultraviolet-Optical Working Group (UVOWG) commissioned by NASA to study the scientific rationale for new missions in ultraviolet/optical space astronomy approximately ten years from now, when the Hubble Space Telescope (HST) is ...
Baum, S. A.   +10 more
core  

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