Results 201 to 210 of about 120,003 (344)

Diameter Dependence of Light Absorption in GaAs Nanowires Evidenced by Photoluminescence Spectroscopy

Advanced Optical Materials, EarlyView.
Photoluminescence spectroscopy is introduced as a qualitative method to probe light absorption in highly phase‐pure GaAs nanowire arrays and single nanowires, for which direct absorption measurements are challenging. Using defect‐line saturation and the exciton‐to‐plasma transition as indicators for the density of photogenerated charge carriers, a ...
Francisca Marín, Ijaas Mohamed, Oliver Brandt, Lutz Geelhaar   +3 more
wiley   +1 more source

A rising tide: intrinsic alignments since the turn of the millennium. [PDF]

Astron Astrophys Rev
Chisari NE.
europepmc   +1 more source

Electroluminescence and Franz–Keldysh Modulation Observed in Sn/Ge Multi‐Quantum Wells

Advanced Optical Materials, EarlyView.
We investigate the optoelectronic properties of PIN diodes based on ultrathin α‐Sn/Ge multiple quantum film structures, fabricated by molecular beam epitaxy, both experimentally and theoretically. The samples exhibit a light emission spectrum in the short‐wavelength infrared range with two transitions. Furthermore, when operating as a photodetector, we
Michael Oehme, Damiano Marian, Maurice Wanitzek, Christian Spieth, Daniel Schwarz, Florian Bärwolf, Markus Andreas Schubert, Alwin Daus, Michele Virgilio, Giovanni Capellini   +9 more
wiley   +1 more source

Comparing the motion of dark matter and standard model particles on cosmological scales. [PDF]

Nat Commun
Grimm N, Bonvin C, Tutusaus I.
europepmc   +1 more source

An on-going multi-wavelength survey of Ly-alpha emitters at redshifts z\n = 2 - 8 [PDF]

, 2006
K. Nilsson, J. P. U. Fynbo, P. Møller, Álvaro Orsi   +3 more
openalex   +1 more source

Tunable Patterned Blue Phase Liquid Crystals Based on Lithographic Process Technology

Advanced Optical Materials, EarlyView.
A patterned blue phase liquid crystal device with electrically driven, localized bistability is demonstrated using a cost‐efficient photolithographic dual‐alignment process. The device switches between a high‐contrast patterned state and a uniform reflective state.
Jia‐Yu Cao, Ting‐Mao Feng, Duan‐Yi Guo, Liang‐Ying Wu, Aleksandra Neumann, Kamil Orzechowski, Chun‐Ta Wang   +6 more
wiley   +1 more source

f(Q) gravity as a possible resolution of the H₀ and S₈ tensions with DESI DR2. [PDF]

Sci Rep
Kavya NS, Swagat Mishra S, Sahoo PK.
europepmc   +1 more source

On the Origin of Lyman-$α$ Blobs at High Redshift: Kinematic Evidence for a Hyperwind Galaxy at z = 3.1

, 2003
Youichi Ohyama, Y. Taniguchi, Koji S. Kawabata, Yasuhiro Shioya, Takashi Murayama, Tohru Nagao, Tadafumi Takata, Masanori Iye, Makiko Yoshida   +8 more
openalex   +1 more source

SHELS: A COMPLETE GALAXY REDSHIFT SURVEY WITH R ⩽ 20.6 [PDF]

, 2014
Margaret J. Geller, Ho Seong Hwang, Daniel G. Fabricant, Michael J. Kurtz, Ian P. Dell’Antonio, Harus Jabran Zahid   +5 more
openalex   +1 more source

Is the emission line redshift the redshift? [PDF]

Monthly Notices of the Royal Astronomical Society, 1977
openaire   +1 more source