Title :
Tunable ferroelectric photonic crystals
Author :
Aktsipetrov, O.A. ; Murzina, T.V. ; Sychev, F.Yu. ; Kolmychek, I.A.
Author_Institution :
Dept. of Phys., Moscow State Univ., Moscow
Abstract :
Spectral tuning of photonic band gap (PBG) in photonic crystals is attained due to temperature changes of the refractive index of sodium nitrite infiltrated into the porous silicon template, composed by electrochemical etching of n-type silicon. Optical second harmonic generation measurements prove the ferroelectric state of the infiltrated NaNO2 and reveal the ferroelectric behavior different from spinning films of sodium nitrite that is attributed to nanocrystalline and surface effects of NaNO2 inside porous silicon matrix. The tuning of PBG up to 15 nm is achieved in the temperature interval from 50degC to 200degC.
Keywords :
ferroelectric materials; optical harmonic generation; photonic band gap; photonic crystals; refractive index; NaNO2; Si; electrochemical etching; ferroelectric photonic crystals; n-type silicon; optical second harmonic generation; photonic band gap; porous silicon template; refractive index; sodium nitrite; spectral tuning; temperature 50 degC to 200 degC; Etching; Ferroelectric materials; Optical films; Optical harmonic generation; Optical tuning; Photonic band gap; Photonic crystals; Refractive index; Silicon; Temperature;
Conference_Titel :
Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-859-9
