Results 241 to 250 of about 507,717 (322)

Development of Laterally Graded X‐Ray Multilayer Optics

open access: yesAdvanced Materials Technologies, EarlyView.
This work presents the development of laterally graded X‐ray multilayer optics with both constant and variable lateral gradients. By precisely controlling substrate speed profiles and mask design, these multilayers achieve highly accurate lateral gradients and excellent sagittal thickness uniformity, making them ideal for spectroscopy application at ...
Arindam Majhi   +11 more
wiley   +1 more source

The Origins & Reservoirs of Exocomets. [PDF]

open access: yesSpace Sci Rev
Bannister M   +13 more
europepmc   +1 more source

Planets

open access: yes, 2017
Vega, Ellianie S
core  

Millisecond‐Switching Dual‐Band/Dual‐Polarization Ka‐Band Wavefront Control Enabled by a Complementary Liquid‐Crystal Metasurface

open access: yesAdvanced Materials Technologies, EarlyView.
An LCD‐compatible complementary liquid‐crystal metasurface delivers dual‐band, dual‐polarized Ka‐band wavefront control with millisecond switching via a 10‐µm LC gap. Interlaced patch/slot pairs enable independent phase tuning at 28 and 38 GHz, while strategic 45° slot rotation suppresses parasitic resonances. Measurements on a 160 × 160‐cell prototype
Daehyeon Kim   +4 more
wiley   +1 more source

Earth-mass planets with He atmospheres in the habitable zone of Sun-like stars. [PDF]

open access: yesNat Astron
Lammer H   +6 more
europepmc   +1 more source

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