Abstract
We investigate numerically the optical properties of a hexagonal half-Skyrmion lattice exhibited by a highly chiral liquid crystal confined between two parallel plates. Our study focuses on the near and far-field reflection for normally incident light with di erent polarizations. We show that, when the wavelength of the incident light is longer than a threshold value, the reflectivity is almost insensitive to the polarization of the incident light, although the intensity profiles of the reflected light, in particular in the near-field regime, depend significantly on the polarization. The former property is attributable to the quasi two-dimensional nature of the half-Skyrmion lattice, that is, an almost uniform orientational order along the direction normal to the confining plates. Our results for the intensity of reflected light generated by evanescent as well as propagating contributions suggest that direct evidence of the formation and structure of half-Skyrmions could be provided by near-field optics with resolutions higher than that of conventional optical microscopy.
| Original language | English |
|---|---|
| Pages (from-to) | 1174-1184 |
| Number of pages | 11 |
| Journal | Optics Express |
| Volume | 26 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Jan 22 2018 |
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All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics
Cite this
Reflection spectra and near-field images of a liquid crystalline half-Skyrmion lattice. / Fukuda, Jun Ichi; Umer, Slobodan.
In: Optics Express, Vol. 26, No. 2, 22.01.2018, p. 1174-1184.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Reflection spectra and near-field images of a liquid crystalline half-Skyrmion lattice
AU - Fukuda, Jun Ichi
AU - Umer, Slobodan
PY - 2018/1/22
Y1 - 2018/1/22
N2 - We investigate numerically the optical properties of a hexagonal half-Skyrmion lattice exhibited by a highly chiral liquid crystal confined between two parallel plates. Our study focuses on the near and far-field reflection for normally incident light with di erent polarizations. We show that, when the wavelength of the incident light is longer than a threshold value, the reflectivity is almost insensitive to the polarization of the incident light, although the intensity profiles of the reflected light, in particular in the near-field regime, depend significantly on the polarization. The former property is attributable to the quasi two-dimensional nature of the half-Skyrmion lattice, that is, an almost uniform orientational order along the direction normal to the confining plates. Our results for the intensity of reflected light generated by evanescent as well as propagating contributions suggest that direct evidence of the formation and structure of half-Skyrmions could be provided by near-field optics with resolutions higher than that of conventional optical microscopy.
AB - We investigate numerically the optical properties of a hexagonal half-Skyrmion lattice exhibited by a highly chiral liquid crystal confined between two parallel plates. Our study focuses on the near and far-field reflection for normally incident light with di erent polarizations. We show that, when the wavelength of the incident light is longer than a threshold value, the reflectivity is almost insensitive to the polarization of the incident light, although the intensity profiles of the reflected light, in particular in the near-field regime, depend significantly on the polarization. The former property is attributable to the quasi two-dimensional nature of the half-Skyrmion lattice, that is, an almost uniform orientational order along the direction normal to the confining plates. Our results for the intensity of reflected light generated by evanescent as well as propagating contributions suggest that direct evidence of the formation and structure of half-Skyrmions could be provided by near-field optics with resolutions higher than that of conventional optical microscopy.
UR - http://www.scopus.com/inward/record.url?scp=85040965788&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85040965788&partnerID=8YFLogxK
U2 - 10.1364/OE.26.001174
DO - 10.1364/OE.26.001174
M3 - Article
AN - SCOPUS:85040965788
VL - 26
SP - 1174
EP - 1184
JO - Optics Express
JF - Optics Express
SN - 1094-4087
IS - 2
ER -