PMID- 26764706
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20160519
LR  - 20160115
IS  - 1550-2376 (Electronic)
IS  - 1539-3755 (Linking)
VI  - 92
IP  - 6
DP  - 2015 Dec
TI  - Light modulation in planar aligned short-pitch deformed-helix ferroelectric 
      liquid crystals.
PG  - 062502
LID - 10.1103/PhysRevE.92.062502 [doi]
AB  - We study both experimentally and theoretically modulation of light in a planar 
      aligned deformed-helix ferroelectric liquid crystal (DHFLC) cell with 
      subwavelength helix pitch, which is also known as a short-pitch DHFLC. In our 
      experiments, the azimuthal angle of the in-plane optical axis and electrically 
      controlled parts of the principal in-plane refractive indices are measured as a 
      function of voltage applied across the cell. Theoretical results giving the 
      effective optical tensor of a short-pitch DHFLC expressed in terms of the smectic 
      tilt angle and the refractive indices of the ferroelectric liquid crystal (FLC) 
      are used to fit the experimental data. The optical anisotropy of the FLC material 
      is found to be weakly biaxial. For both the transmissive and reflective modes, 
      the results of fitting are applied to model the phase and amplitude modulation of 
      light in the DHFLC cell. We demonstrate that if the thickness of the DHFLC layer 
      is about 50mum, the detrimental effect of field-induced rotation of the in-plane 
      optical axes on the characteristics of an axicon designed using the DHFLC spatial 
      light modulator in the reflective mode is negligible.
FAU - Kotova, Svetlana P
AU  - Kotova SP
AD  - Lebedev Physical Institute, Leninsky Prospekt 53, 119991 Moscow, Russia.
AD  - Samara State Aerospace University, Moskovskoe Shosse 34, 443086 Samara, Russia.
FAU - Samagin, Sergey A
AU  - Samagin SA
AD  - Lebedev Physical Institute, Leninsky Prospekt 53, 119991 Moscow, Russia.
FAU - Pozhidaev, Evgeny P
AU  - Pozhidaev EP
AD  - Lebedev Physical Institute, Leninsky Prospekt 53, 119991 Moscow, Russia.
AD  - Hong Kong University of Science and Technology, Clear Water Bay, 999077 Kowloon, 
      Hong Kong.
FAU - Kiselev, Alexei D
AU  - Kiselev AD
AD  - Hong Kong University of Science and Technology, Clear Water Bay, 999077 Kowloon, 
      Hong Kong.
AD  - Saint Petersburg National Research University of Information Technologies, 
      Mechanics and Optics, Kronverskyi Prospekt 49, 197101 St. Petersburg, Russia.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20151201
PL  - United States
TA  - Phys Rev E Stat Nonlin Soft Matter Phys
JT  - Physical review. E, Statistical, nonlinear, and soft matter physics
JID - 101136452
EDAT- 2016/01/15 06:00
MHDA- 2016/01/15 06:01
CRDT- 2016/01/15 06:00
PHST- 2015/08/20 00:00 [received]
PHST- 2016/01/15 06:00 [entrez]
PHST- 2016/01/15 06:00 [pubmed]
PHST- 2016/01/15 06:01 [medline]
AID - 10.1103/PhysRevE.92.062502 [doi]
PST - ppublish
SO  - Phys Rev E Stat Nonlin Soft Matter Phys. 2015 Dec;92(6):062502. doi: 
      10.1103/PhysRevE.92.062502. Epub 2015 Dec 1.