Zobrazeno 1 - 10
of 118
pro vyhledávání: '"Sven T. Lagerwall"'
Autor:
Sven T. Lagerwall
Publikováno v:
Liquid Crystals. 40:1698-1729
Before 1910, the study of liquid crystals was dominated by Lehmann and the German school of chemists. The point of gravity then moved to France with Friedel as a leading figure. While there are many studies about Lehmann, there are fewer about Friede
Autor:
Per Rudquist, Sven T. Lagerwall, J.-L. de Bougrenet de la Tocnaye, P. Gautier, Pontus Jägemalm, L. Dupont, B. Caillaud
Publikováno v:
Molecular Crystals and Liquid Crystals. 494:195-204
Recent developments in welding technology, in particular the high intensity pulsed welding arc, have sharpened the requirements on speed and adjustable attenuation for safe and ergonomic operations. With this advent the conventional welding helmets b
Autor:
Per Rudquist, Sven T. Lagerwall, David Engström, Pontus Jägemalm, L. Dupont, B. Caillaud, P. Gautier, J.-L. de Bougrenet de la Tocnaye
Publikováno v:
Ferroelectrics. 364:66-71
The use of automatically operating shutters for welding is since long a recognized application of liquid crystals with an important market. With the advent and success of the new pulsed welding technique the conventional welding helmets based on nema
Publikováno v:
Comptes Rendus Chimie. 11:212-220
Free-surface drops of blue phase attached to a glass slide present topologically concentric lines, which we first believed to be steps at the air interface, as this was often observed in smectic drops or in other liquid crystals. Actually these conto
Publikováno v:
Encyclopedia of Optical and Photonic Engineering, Second Edition ISBN: 9781439850992
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5396238b0990dc240bcde2280aa48d2
https://doi.org/10.1081/e-eoe2-120014870
https://doi.org/10.1081/e-eoe2-120014870
Publikováno v:
Encyclopedia of Optical and Photonic Engineering, Second Edition ISBN: 9781439850992
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0da25503c18c6042f7296ba1ca68c0bb
https://doi.org/10.1081/e-eoe2-120009601
https://doi.org/10.1081/e-eoe2-120009601
Publikováno v:
Encyclopedia of Optical and Photonic Engineering, Second Edition ISBN: 9781439850992
If we abandon the mirror symmetry present in the ordinary nematics, a new world opens up for applications, for photonics as well as for displays. The basic new phenomenon that now appears is scattering. In practice, we enter this domain by using chol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4587e5c92ecf5bcd3a2b72dd49f0ad7
https://doi.org/10.1081/e-eoe2-120014868
https://doi.org/10.1081/e-eoe2-120014868
Publikováno v:
Encyclopedia of Optical and Photonic Engineering, Second Edition ISBN: 9781439850992
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3251d88db86b7ff6f6b0578dd456d554
https://doi.org/10.1081/e-eoe2-120014869
https://doi.org/10.1081/e-eoe2-120014869
Publikováno v:
Ferroelectrics. 344:177-188
Horizontally surface-stabilized orthoconic antiferroelectric liquid crystals (OAFLCs) provide excellent contrast electrooptic switching. However, in very thin cells the bulk relaxation to the anticlinic state tends to be slow because the synclinic st
Autor:
Frank Giesselmann, Jan P. F. Lagerwall, Sebastien Rauch, Sven T. Lagerwall, Per Rudquist, Gerd Heppke
Publikováno v:
Ferroelectrics. 315:221-230
By mixing a bistereogenic antiferroelectric liquid crystal (AFLC) compound, exhibiting only the SmQ* and SmC a * mesophases, with the achiral N-SmC liquid crystal HOAB we could induce all three AFLC SmC-type subphases, SmCα*, SmCβ* and SmCγ*. This