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Showing 25 to 36 of 268 entries
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"Ultracold" neutral plasmas at room temperature.

Physical review letters

Heilmann N, Peatross JB, Bergeson SD.
PMID: 22861862
Phys Rev Lett. 2012 Jul 20;109(3):035002. doi: 10.1103/PhysRevLett.109.035002. Epub 2012 Jul 16.

We report a measurement of the electron temperature in a plasma generated by a high-intensity laser focused into a jet of neon. The 15 eV electron temperature is determined using an analytic solution of the plasma equations assuming local...

Tunable phonon polaritons in atomically thin van der Waals crystals of boron nitride.

Science (New York, N.Y.)

Dai S, Fei Z, Ma Q, Rodin AS, Wagner M, McLeod AS, Liu MK, Gannett W, Regan W, Watanabe K, Taniguchi T, Thiemens M, Dominguez G, Castro Neto AH, Zettl A, Keilmann F, Jarillo-Herrero P, Fogler MM, Basov DN.
PMID: 24604197
Science. 2014 Mar 07;343(6175):1125-9. doi: 10.1126/science.1246833.

van der Waals heterostructures assembled from atomically thin crystalline layers of diverse two-dimensional solids are emerging as a new paradigm in the physics of materials. We used infrared nanoimaging to study the properties of surface phonon polaritons in a...

Excess heat capacity in liquid binary alkali-fluoride mixtures.

Inorganic chemistry

Beilmann M, Beneš O, Capelli E, Reuscher V, Konings RJ, Fanghänel T.
PMID: 23421448
Inorg Chem. 2013 Mar 04;52(5):2404-11. doi: 10.1021/ic302168g. Epub 2013 Feb 19.

Using drop calorimetry, we measured enthalpy increments of the LiF-KF, LiF-RbF, and LiF-CsF binary systems at temperatures above the melting point. Ten samples with different compositions (four compositions for LiF-KF, one composition for LiF-RbF, and five compositions for LiF-CsF)...

Far-infrared nonlinear optics. II. chi (3) contributions from the dynamics of free carriers in semiconductors.

Physical review. B, Condensed matter

Keilmann F, Mayer A.
PMID: 9938020
Phys Rev B Condens Matter. 1986 May 15;33(10):6962-6968. doi: 10.1103/physrevb.33.6962.

No abstract available.

A Competency Framework for Developing Global Laboratory Leaders.

Frontiers in public health

Albetkova A, Chaignat E, Gasquet P, Heilmann M, Isadore J, Jasir A, Martin B, Wilcke B.
PMID: 31482080
Front Public Health. 2019 Aug 20;7:199. doi: 10.3389/fpubh.2019.00199. eCollection 2019.

Building sustainable national health laboratory systems requires laboratory leaders who can address complex and changing demands for services and build strong collaborative networks. Global consensus on laboratory leadership competencies is critically important to ensure the harmonization of learning approaches...

Correction to Highly Anisotropic in-Plane Excitons in Atomically Thin and Bulklike 1T'-ReSe.

Nano letters

Arora A, Noky J, Drüppel M, Jariwala B, Deilmann T, Schneider R, Schmidt R, Del Pozo-Zamudio O, Stiehm T, Bhattacharya A, Krüger P, Michaelis de Vasconcellos S, Rohlfing M, Bratschitsch R.
PMID: 28972768
Nano Lett. 2017 Nov 08;17(11):7169. doi: 10.1021/acs.nanolett.7b04178. Epub 2017 Oct 03.

No abstract available.

Highly scalable femtosecond coherent beam combining demonstrated with 19 fibers.

Optics letters

Le Dortz J, Heilmann A, Antier M, Bourderionnet J, Larat C, Fsaifes I, Daniault L, Bellanger S, Simon Boisson C, Chanteloup JC, Lallier E, Brignon A.
PMID: 28504751
Opt Lett. 2017 May 15;42(10):1887-1890. doi: 10.1364/OL.42.001887.

Coherent beam combining in the femtosecond regime of a record number of 19 fibers is demonstrated. The interferometric phase measurement technique, particularly well suited to phase-lock a very large number of fibers, is successfully demonstrated in the femtosecond regime....

Basic Properties of a New Polymer Gel for 3D-Dosimetry at High Dose-Rates Typical for FFF Irradiation Based on Dithiothreitol and Methacrylic Acid (MAGADIT): Sensitivity, Range, Reproducibility, Accuracy, Dose Rate Effect and Impact of Oxygen Scavenger.

Polymers

Khan M, Heilemann G, Lechner W, Georg D, Berg AG.
PMID: 31635117
Polymers (Basel). 2019 Oct 19;11(10). doi: 10.3390/polym11101717.

The photon induced radical-initiated polymerization in polymer gels can be used for high-resolution tissue equivalent dosimeters in quality control of radiation therapy. The dose (D) distribution in radiation therapy can be measured as a change of the physical measurement...

Carbon Monoxide Activation by a Molecular Aluminium Imide: C-O Bond Cleavage and C-C Bond Formation.

Angewandte Chemie (International ed. in English)

Heilmann A, Hicks J, Vasko P, Goicoechea JM, Aldridge S.
PMID: 31999037
Angew Chem Int Ed Engl. 2020 Mar 16;59(12):4897-4901. doi: 10.1002/anie.201916073. Epub 2020 Feb 18.

Anionic molecular imide complexes of aluminium are accessible via a rational synthetic approach involving the reactions of organo azides with a potassium aluminyl reagent. In the case of K

Design and Synthesis of Photodissociable Ligands Based on Azoimidazoles for Light-Driven Coordination-Induced Spin State Switching in Homogeneous Solution.

The Journal of organic chemistry

Schütt C, Heitmann G, Wendler T, Krahwinkel B, Herges R.
PMID: 26761623
J Org Chem. 2016 Feb 05;81(3):1206-15. doi: 10.1021/acs.joc.5b02817. Epub 2016 Jan 27.

Light-switchable azoimidazoles were rationally designed and synthesized, and their performance was investigated as photodissociable ligands (PDL) and for spin state switching of Ni porphyrins. The rationally designed ligands exhibit a high photochemical conversion rate (trans → cis > 98%)...

Arene C-H Activation at Aluminium(I): meta Selectivity Driven by the Electronics of S.

Angewandte Chemie (International ed. in English)

Hicks J, Vasko P, Heilmann A, Goicoechea JM, Aldridge S.
PMID: 32722863
Angew Chem Int Ed Engl. 2020 Nov 09;59(46):20376-20380. doi: 10.1002/anie.202008557. Epub 2020 Sep 02.

The reactivity of the electron-rich anionic Al

Testing a Smartphone App (Young with Diabetes) to Improve Self-Management of Diabetes Over 12 Months: Randomized Controlled Trial.

JMIR mHealth and uHealth

Castensøe-Seidenfaden P, Husted GR, Jensen AK, Hommel E, Olsen B, Pedersen-Bjergaard U, Kensing F, Teilmann G.
PMID: 29945861
JMIR Mhealth Uhealth. 2018 Jun 26;6(6):e141. doi: 10.2196/mhealth.9487.

BACKGROUND: Young people often struggle to self-manage type 1 diabetes during the transition from childhood to adulthood. Mobile health (mHealth) apps may have the potential to support self-management, but evidence is limited and randomized controlled trials are needed.OBJECTIVE: We...

Showing 25 to 36 of 268 entries