Zobrazeno 1 - 10
of 88
pro vyhledávání: '"Dieter Cuypers"'
Publikováno v:
APL Materials, Vol 12, Iss 10, Pp 101114-101114-6 (2024)
This study investigates the critical electric field thresholds required for phase transitions in the blue phases of liquid crystals (BPs) confined within vertical field switching cells. BPs are attractive for electro-optical applications due to their
Externí odkaz:
https://doaj.org/article/e818afbd1bb447db9f502e88ad2abf05
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
Abstract Optical beam deflectors based on the combination of cholesteric liquid crystals and polymer micro gratings are reported. Dual frequency cholesteric liquid crystal (DFCh-LC) is adopted to accelerate the switching from the homeotropic state ba
Externí odkaz:
https://doaj.org/article/1ab6ca3605794db3ae32b35c0a2e75df
Autor:
Xiaobing Shang, Ailee Mae Trinidad, Pankaj Joshi, Jelle De Smet, Dieter Cuypers, Herbert De Smet
Publikováno v:
IEEE Photonics Journal, Vol 8, Iss 3, Pp 1-11 (2016)
An effective tunable optical beam deflection device based on a periodic gradient refractive index (GRIN) profile is reported, which is capable of achieving a 5° beam deflection with an angle resolution of 0.5°. The operation voltage is around 6 Vpp
Externí odkaz:
https://doaj.org/article/f9cae54db335408b80b0ef17d170c5b1
Autor:
Xiaobing Shang, Dieter Cuypers, Tigran Baghdasaryan, Michael Vervaeke, Hugo Thienpont, Jeroen Beeckman, Kristiaan Neyts, Quan Li, Chao Wu, Hongqiang Li, Changjun Jiang, Herbert De Smet
Publikováno v:
Crystals, Vol 10, Iss 11, p 977 (2020)
Emerging applications requiring light beam manipulation, such as high-efficiency sunlight concentrators for solar cells, switchable micro-lens arrays for autostereoscopic displays, tunable lenses for augmented reality goggles, auto-focusing spectacle
Externí odkaz:
https://doaj.org/article/35890ebd3c0b42349590c4360c6022d6
Autor:
Xiaobing Shang, Jin-Yi Tan, Oliver Willekens, Jelle De Smet, Pankaj Joshi, Dieter Cuypers, Esma Islamaj, Jeroen Beeckman, Kristiaan Neyts, Michael Vervaeke, Hugo Thienpont, Herbert De Smet
Publikováno v:
IEEE Photonics Journal, Vol 7, Iss 2, Pp 1-13 (2015)
In this paper, we present an electrically controllable microoptical component for light beam steering and light intensity distribution built on the combination of nematic liquid crystal (LC) and polymer microprisms. Polymer microprism arrays are fabr
Externí odkaz:
https://doaj.org/article/4a0614c32f70427f985b632664cb25c4
Autor:
Nick Rondelez, António Correia, Wouter Ryckaert, Herbert De Smet, Dieter Cuypers, Youri Meuret
Publikováno v:
OPTICS EXPRESS
To realize laser-driven high-luminance white light sources, many reflective configurations have been studied, often resulting in a challenging optical design. In this paper it is demonstrated that the efficacy of a transmissive configuration can be s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6ff15e86c514d432a2ba5e9ca8a3e8c1
https://lirias.kuleuven.be/handle/20.500.12942/689796
https://lirias.kuleuven.be/handle/20.500.12942/689796
Autor:
Dieter Cuypers, Herbert De Smet
Publikováno v:
Proceedings of the International Display Workshops. :760
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::832bcc9bdde52f8ea355c562b572a81b
https://doi.org/10.36463/idw.2022.0760
https://doi.org/10.36463/idw.2022.0760
Publikováno v:
SID Symposium Digest of Technical Papers. 50:985-988
The design and technology of tunable liquid crystal based lenses is discussed. Specific attention is paid to lenses with small diameters and high f‐number and it is demonstrated that in that case a segmented Fresnel lens approach can be most favora
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce50b16e207faba63fee4d5d71d0d4b8
https://doi.org/10.1002/sdtp.13091
https://doi.org/10.1002/sdtp.13091
Autor:
Herbert De Smet, Changjun Jiang, Hongqiang Li, Jeroen Beeckman, Tigran Baghdasaryan, Xiaobing Shang, Michael Vervaeke, Chao Wu, Quan Li, Dieter Cuypers, Kristiaan Neyts, Hugo Thienpont
Publikováno v:
Crystals, Vol 10, Iss 977, p 977 (2020)
CRYSTALS
CRYSTALS
Emerging applications requiring light beam manipulation, such as high-efficiency sunlight concentrators for solar cells, switchable micro-lens arrays for autostereoscopic displays, tunable lenses for augmented reality goggles, auto-focusing spectacle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bbec5d7cb88ec241b4281b138520b574
https://www.mdpi.com/2073-4352/10/11/977
https://www.mdpi.com/2073-4352/10/11/977
Autor:
Ana Radosavljević, Jan Matthijs ter Meulen, Geert Van Steenberge, Dieter Cuypers, Jeroen Missinne, Marie-Aline Mattelin, Sander Kommeren, Jos Vandael, Luc Verduyckt
Publikováno v:
Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XIII
In a waveguide-type display for augmented reality, the image is injected in the waveguide and extracted in front of the eye appearing superimposed on the real world scene. An elegant and compact way of coupling these images in and out is by using bla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d6ebe33c32e945d4f9d9bd971e0baaef
https://biblio.ugent.be/publication/8653351
https://biblio.ugent.be/publication/8653351