| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
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| Outline of Final Research Achievements |
The chiral smectic C phase of ferroelectric liquid crystals has a self-assembling helical structure which is regarded as a one-dimensional pseudo-photonic crystal. It is well known that a stop band of a ferroelectric liquid crystal can be tuned in wavelength domain by changing temperature or electric field. We have investigated the wavelength tunable optical filter with independently variable bandwidth using a full pitch band of ferroelectric liquid crystals. Electric field dependence of the ferroelectric liquid crystal director profiles is calculated by continuum theory, and then the optical properties of the full pitch band are calculated by the 4x4 matrix method. The results indicate that the bandwidth and wavelength can be independently controlled by varying incident angle, and electric field. We also experimentally investigated the transmission properties of the full pitch band.
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