Bistable spatial light modulator using a ferroelectric liquid crystal

Fukushima, Seiji; Kurokawa, Takashi; Matsuo, Shinji; Kozawaguchi, Haruki

doi:10.1364/ol.15.000285

Cited by 64 publications

(17 citation statements)

References 4 publications

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“…So this half-wave plate converts s-polarized light to p-polarized light and vice versa. LC-PSLM [18,19] is like a programmable half-wave plate. It consists of a thin layer of liquid crystal (LC) placed between two glass plates, each coated with a transparent electrical conductor.…”

Section: All-optical Circuit Of Rpblumentioning

confidence: 99%

“…51, No. 21 / APPLIED OPTICS either aligned with the polarization of the incident optical field (when the voltage is lower than the threshold or the voltage is equal to zero) or rotated by an angle of 2ψ ≈ 90°(ψ is the tilt angle of the optic axis) to the incident field (if the voltage exceeds its threshold voltage, which is ∼4.5 V)[18,19]. For applying electric voltage, s-polarized light becomes ppolarized, or vice versa.…”

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confidence: 99%

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Optical reversible programmable Boolean logic unit

Chattopadhyay¹

2012

Appl. Opt.

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Computing with reversibility is the only way to avoid dissipation of energy associated with bit erase. So, a reversible microprocessor is required for future computing. In this paper, a design of a simple all-optical reversible programmable processor is proposed using a polarizing beam splitter, liquid crystal-phase spatial light modulators, a half-wave plate, and plane mirrors. This circuit can perform 16 logical operations according to three programming inputs. Also, inputs can be easily recovered from the outputs. It is named the "reversible programmable Boolean logic unit (RPBLU)." The logic unit is the basic building block of many complex computational operations. Hence the design is important in sense. Two orthogonally polarized lights are defined here as two logical states, respectively.

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Section: All-optical Circuit Of Rpblumentioning

confidence: 99%

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confidence: 99%

Optical reversible programmable Boolean logic unit

Chattopadhyay¹

2012

Appl. Opt.

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“…The SSFLC structure with bi‐stable switching cannot provide an intrinsic continuous gray scale, unless a time or space‐averaging process is applied . The inherent physical gray scale of passively addressed FLC cells can be obtained only if the FLC possesses multi‐stable electro‐optical switching as a consequence of ferroelectric domains, which appear if the spontaneous polarization P s is high enough . Ferroelectric domains in a helix‐free FLC form a quasi‐periodic structure with a variable optical density as it appears between crossed polarizers (Fig.…”

Section: Introductionmentioning

confidence: 99%

Ferroelectric liquid crystals: Excellent tool for modern displays and photonics

2015

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The ferroelectric liquid crystals, because of their fast electro‐optical response, are one of the most important classes of liquid crystals. Here, in this review, we have summarized the different electro‐optical modes for ferroelectric liquid crystals. Clark–Lagerwall effect (surface stabilized ferroelectric liquid crystal), deformed helix ferroelectric (DHF) effect, electrically suppressed helix (ESH) mode, DHF orientational Kerr effect, and ESH diffraction modes have been discussed. All of the crucial features, that is, optics, electro‐optics, dynamics, and their dependence on material parameters, operational regime, and applications, have been reviewed.

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“…Simultaneously an increasing interest towards dynamic holographic imaging was observed due to its prospective application in optical devices [10][11][12]. Among the others, a very interesting candidate for the photo addressable medium seems to be surface stabilized (untwisted) structures of the ferro-(SSFLC) and antiferroelectric liquid crystal (SSAFLC).…”

Section: Introductionmentioning

confidence: 99%

Holographic Recordings Using Bistable SmC* Structures

Sutkowski

Grudniewski

Piecek

et al. 2009

Molecular Crystals and Liquid Crystals

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Numerous methods of re-writable optical recordings using nematic mixtures for holographic media have been presented. A new approach to this problem is possible by using surface stabilized ferroelectric liquid crystal structures (SSFLC). This is very promising from the theoretical point of view because the surface stabilized the structure of ferroelectric smectic SmC Ã material inherently consists of a memory effect while driving by external electric field. Moreover, due to the layered structure of the surface stabilized ferroelectric liquid crystal there is a possibility of obtaining high resolution of the written gratings. In the paper, some theoretical basis regarding possibility of optical addressing of SSFCL cells are discussed. Methods of preparation of the optically addressed SSFLC cells in room temperature bistable SmC Ã structure are presented. Experiments with these cells in simple holographic two-beam set-up (DWTM) are described.

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Bistable spatial light modulator using a ferroelectric liquid crystal

Cited by 64 publications

References 4 publications

Optical reversible programmable Boolean logic unit

Optical reversible programmable Boolean logic unit

Ferroelectric liquid crystals: Excellent tool for modern displays and photonics

Holographic Recordings Using Bistable SmC* Structures

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