Results 61 to 70 of about 919,436 (348)

Robust ultrahigh-Q resonances in tetramer metasurfaces through centroid symmetry protection and area conservation

open access: yesLight: Science & Applications
Ultrahigh-Q optical resonances are the cornerstone of next-generation nanophotonic technologies, but their simultaneous realization of robustness and on-chip practicality remains a significant challenge.
Chaobiao Zhou   +5 more
doaj   +1 more source

High resolution spectroscopy in the microwave and far infrared [PDF]

open access: yes, 1990
High resolution rotational spectroscopy has long been central to remote sensing techniques in atmospheric sciences and astronomy. As such, laboratory measurements must supply the required data to make direct interpretation of data for instruments which ...
Pickett, Herbert M.
core   +1 more source

Mid- to Far-Infrared spectroscopy of Sharpless 171 [PDF]

open access: yes, 2003
We have collected one-dimensional raster-scan observations of the active star-forming region Sharpless 171 (S171), a typical HII region-molecular cloud complex, with the three spectrometers (LWS, SWS, and PHT-S) on board ISO.
Baluteau   +55 more
core   +1 more source

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan   +4 more
wiley   +1 more source

Infrared spectroscopy in superfluid helium droplets

open access: yesAdvances in Physics: X, 2019
For more than two decades, encapsulation in superfluid helium nanodroplets has served as a reliable technique for probing the structure and dynamics of molecules and clusters at a low temperature of ≈0.37 K. Due to weak interactions between molecules and
Deepak Verma   +3 more
doaj   +1 more source

M67 Blue Stragglers with High-resolution Infrared Spectroscopy

open access: yesThe Astronomical Journal, 2023
We report on the first detailed infrared chemical analysis of five binary members (S277, S997, S975, S1031, and S1195) in the open cluster M67 (NGC 2682).
K. E. Brady   +7 more
doaj   +1 more source

Far-infrared spectroscopy of nanoscopic InAs rings [PDF]

open access: yes, 1999
We have employed time-dependent local-spin density theory to analyze the far-infrared transmission spectrum of InAs self-assembled nano-rings recently reported [A. Lorke et al, cond-mat/9908263 (1999)]. The overall agreement between theory and experiment
Barranco, Manuel   +3 more
core   +3 more sources

Sustainable Synthesis of Bio‐Based Magnetic and Conductive Wood for Electromagnetic Interference Shielding Applications

open access: yesAdvanced Engineering Materials, EarlyView.
A wood‐based magnetic and conductive material called Magwood (MW), capable of blocking almost 99.99% of electromagnetic waves (in the X‐band frequency range), is synthesized using a simple, solvent‐free process. MW is lightweight, resists water, and is flame‐retardant, making it a promising alternative for shielding electronics. The rapid proliferation
Akash Madhav Gondaliya   +3 more
wiley   +1 more source

Single-defect spectroscopy in the shortwave infrared

open access: yesNature Communications, 2019
Chemical defects endow materials with unique properties but their investigation is challenging due to their small footprint. Here the authors develop a high throughput shortwave infrared spectroscopy method enabling spectral identification and ...
Xiaojian Wu   +3 more
doaj   +1 more source

Worthwhile Relevance of Infrared Spectroscopy in Characterization of Samples and Concept of Infrared Spectroscopy-Based Synchrotron Radiation

open access: yesJournal of Spectroscopy, 2020
The study explores the nitty-gritty of infrared spectroscopy. Firstly, the review gives a concise history of infrared discovery and its location in the electromagnetic spectrum.
Ayodele Temidayo Odularu
doaj   +1 more source

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