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Showing 1 to 12 of 16 entries
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Ultralow-loss 3-dB photonic crystal waveguide splitter.

Optics letters

Frandsen LH, Borel PI, Zhuang YX, Harpøth A, Thorhauge M, Kristensen M, Bogaerts W, Dumon P, Baets R, Wiaux V, Wouters J, Beckx S.
PMID: 15309839
Opt Lett. 2004 Jul 15;29(14):1623-5. doi: 10.1364/ol.29.001623.

A photonic crystal waveguide splitter that exhibits ultralow-loss 3-dB splitting for TE-polarized light is fabricated in silicon-on-insulator material by use of deep UV lithography. The high performance is achieved by use of a Y junction, which is designed to...

Efficient propagation of TM polarized light in photonic crystal components exhibiting band gaps for TE polarized light.

Optics express

Borel P, Frandsen L, Thorhauge M, Harpøth A, Zhuang Y, Kristensen M, Chong H.
PMID: 19466056
Opt Express. 2003 Jul 28;11(15):1757-62. doi: 10.1364/oe.11.001757.

We have investigated the properties of TM polarized light in planar photonic crystal waveguide structures, which exhibit photonic band gaps for TE polarized light. Straight and bent photonic crystal waveguides and couplers have been fabricated in silicon-on-insulator material and...

Highly Enantioselective Catalytic Hetero-Diels-Alder Reaction with Inverse Electron Demand.

Angewandte Chemie (International ed. in English)

Thorhauge J, Johannsen M, Jørgensen KA.
PMID: 29710966
Angew Chem Int Ed Engl. 1998 Sep 18;37(17):2404-2406. doi: 10.1002/(SICI)1521-3773(19980918)37:17<2404::AID-ANIE2404>3.0.CO;2-D.

Valuable substrates for the synthesis of natural products, compounds 3 (R

The influence of acceptor and donor doping on the protonic surface conduction of TiO.

Physical chemistry chemical physics : PCCP

Stub SØ, Thorshaug K, Rørvik PM, Norby T, Vøllestad E.
PMID: 29845151
Phys Chem Chem Phys. 2018 Jun 13;20(23):15653-15660. doi: 10.1039/c8cp00571k.

The transport of protonic charge carriers along and within the pore surfaces of porous oxide matrices is of significant importance for many catalytic and electrochemical applications, with porous TiO2 being a candidate material both for photocatalytic applications and as...

On the intermediates in chiral bis(oxazoline)copper(II)-catalyzed enantioselective reactions--experimental and theoretical investigations.

Chemistry (Weinheim an der Bergstrasse, Germany)

Thorhauge J, Roberson M, Hazell RG, Jørgensen KA.
PMID: 12007099
Chemistry. 2002 Apr 15;8(8):1888-98. doi: 10.1002/1521-3765(20020415)8:8<1888::AID-CHEM1888>3.0.CO;2-9.

The intermediates in the chiral bis(oxazoline)copper(II)-catalyzed reactions have been investigated by means of experimental and theoretical investigations. It is shown that the absolute configuration of the hetero-Diels-Alder adduct obtained from the reaction of ethyl glyoxylate with 1,3-cyclohexadiene in the...

Quantifying the promotion of Cu catalysts by ZnO for methanol synthesis.

Science (New York, N.Y.)

Kuld S, Thorhauge M, Falsig H, Elkjær CF, Helveg S, Chorkendorff I, Sehested J.
PMID: 27199425
Science. 2016 May 20;352(6288):969-74. doi: 10.1126/science.aaf0718.

Promoter elements enhance the activity and selectivity of heterogeneous catalysts. Here, we show how methanol synthesis from synthesis gas over copper (Cu) nanoparticles is boosted by zinc oxide (ZnO) nanoparticles. By combining surface area titration, electron microscopy, activity measurement,...

To drive or not to drive? A study of travel behavior for a recent drinking occasion.

Travel behaviour & society

MacLeod KE, Thorhauge M, Villalobos V, van Meijgaard J, Karriker-Jaffe KJ, Kelley-Baker T, Ragland DR.
PMID: 34703766
Travel Behav Soc. 2020 Jul;20:74-82. doi: 10.1016/j.tbs.2020.02.008. Epub 2020 Mar 05.

Despite decades of education and enforcement campaigns, alcohol-impaired driving persists as a social problem in the U.S. Are there other factors influencing decisions to drive after alcohol consumption that may be amenable to change? We conducted a roadside survey...

In situ infrared emission spectroscopy for quantitative gas-phase measurement under high temperature reaction conditions: an analytical method for methane by means of an innovative small-volume flowing cell.

Applied spectroscopy

Usseglio S, Thorshaug K, Karlsson A, Dahl IM, Nielsen CJ, Jens KJ, Tangstad E.
PMID: 20149274
Appl Spectrosc. 2010 Feb;64(2):141-8. doi: 10.1366/000370210790619564.

We have used infrared emission spectroscopy (IRES) in order to perform in situ studies under flowing gas-phase conditions. When the small-volume cell developed herein is used, we can (1) observe emission spectra from a hot gas-phase sample having an...

Efficient photonic crystal directional couplers.

Optics letters

Thorhauge M, Frandsen LH, Borel PI.
PMID: 12956367
Opt Lett. 2003 Sep 01;28(17):1525-7. doi: 10.1364/ol.28.001525.

We demonstrate highly efficient and spectrally flat broadband coupling in photonic crystal directional couplers. The result is obtained by use of a novel design with smaller holes between coparallel photonic crystal waveguides for efficient channel-to-channel coupling. The system studied...

Catalytic Asymmetric Friedel-Crafts Alkylation of β,γ-Unsaturated α-Ketoesters: Enantioselective Addition of Aromatic C-H Bonds to Alkenes.

Angewandte Chemie (International ed. in English)

Jensen KB, Thorhauge J, Hazell RG, Jørgensen KA.
PMID: 29711935
Angew Chem Int Ed Engl. 2001 Jan 05;40(1):160-163. doi: 10.1002/1521-3773(20010105)40:1<160::AID-ANIE160>3.0.CO;2-S.

No abstract available.

An experimental and theoretical study of spin-spin coupling in chlorosilanes.

The journal of physical chemistry. A

Thorshaug K, Swang O, Dahl IM, Olafsen A.
PMID: 16898680
J Phys Chem A. 2006 Aug 17;110(32):9801-4. doi: 10.1021/jp060704g.

An experimental and theoretical study of the absolute value of the one-bond spin-spin coupling constant |(1)J(Si,H)| in SiH(n)Cl(4-n) (n = 0-4) dissolved in THF-d(8) is presented. We found |(1)J(Si,H)| to increase with an increasing number of chlorine substituents, and...

Linker conformation effects on the band gap in metal-organic frameworks.

Inorganic chemistry

Flage-Larsen E, Thorshaug K.
PMID: 24528111
Inorg Chem. 2014 Mar 03;53(5):2569-72. doi: 10.1021/ic4028628. Epub 2014 Feb 14.

In this work, we investigate how torsion in the middle aromatic ring on the terphenyldicarboxylate linker in UiO-68 affects the band gap. Furthermore, we incorporate the effect of monosubstitution on the linker (UiO-68-R; R = H, F, I, NH2,...

Showing 1 to 12 of 16 entries