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Ndemanga Yachidule ya Lithium Niobate Crystal ndi Ntchito Zake - Gawo 8: Kugwiritsa Ntchito Acoustic kwa LN Crystal
Kutumiza kwaposachedwa kwa 5G kumaphatikizapo gulu laling'ono la 6G la 3 mpaka 5 GHz ndi millimeter wave band ya 24 GHz kapena kupitilira apo.Kuwonjezeka kwa mafupipafupi olankhulirana sikungofunika kuti zinthu za piezoelectric za zida za kristalo zikwaniritsidwe, komanso zimafunikanso zowonda zopyapyala ndi magetsi ang'onoang'ono opindika ...Werengani zambiri -
Ndemanga Yachidule ya Lithium Niobate Crystal ndi Ntchito Zake - Gawo 7: Dielectric Superlattice ya LN Crystal
Mu 1962, Armstrong et al.Poyamba adapereka lingaliro la QPM (Quasi-phase-match), yomwe imagwiritsa ntchito cholumikizira cha lattice chopindika choperekedwa ndi superlattice kubweza kusagwirizana kwa gawo munjira yowonera parametric.Mayendedwe a polarization a ferroelectrics amakhudza kuchuluka kwa polarization kosagwirizana ndi χ2....Werengani zambiri -
Ndemanga Yachidule ya Lithium Niobate Crystal ndi Ntchito Zake - Gawo 6: Kugwiritsa Ntchito Mwanzeru kwa LN Crystal
Kuphatikiza pa zotsatira za piezoelectric, mphamvu ya photoelectric ya LN crystal ndi yolemera kwambiri, yomwe imakhala ndi electro-optical effect ndi mawonekedwe osawoneka bwino omwe amagwira ntchito kwambiri ndipo amagwiritsidwa ntchito kwambiri.Kuphatikiza apo, LN crystal itha kugwiritsidwa ntchito pokonzekera mawonekedwe apamwamba kwambiri opangidwa ndi proton ...Werengani zambiri -
Ndemanga Yachidule ya Lithium Niobate Crystal ndi Ntchito Zake - Gawo 5: Kugwiritsa ntchito mphamvu ya piezoelectric ya LN Crystal
Lithium niobate crystal ndi chinthu chabwino kwambiri cha piezoelectric chokhala ndi zinthu zotsatirazi: kutentha kwa Curie, kutentha kocheperako kwa piezoelectric effect, high electromechanical coupling coefficient, low dielectric loss, khola thupi ndi mankhwala,...Werengani zambiri -
Ndemanga Yachidule ya Lithium Niobate Crystal ndi Ntchito Zake - Gawo 4: Near-Stoichiometric Lithium Niobate Crystal
Poyerekeza ndi LN crystal yachibadwa (CLN) yokhala ndi mawonekedwe omwewo, kusowa kwa lithiamu pafupi ndi stoichiometric LN crystal (SLN) kumabweretsa kuchepa kwakukulu kwa zolakwika za lattice, ndipo katundu wambiri amasintha moyenerera.Gome ili m'munsili likuwonetsa kusiyana kwakukulu kwa thupi.Comp...Werengani zambiri -
Ndemanga Yachidule ya Lithium Niobate Crystal ndi Ntchito Zake - Gawo 3: Anti-photorefractive Doping of LN Crystal
Photorefractive kwenikweni ndi maziko a holographic kuwala ntchito, komanso kumabweretsa mavuto kwa ntchito zina kuwala, kotero kuwongolera photorefractive kukana wa lifiyamu niobate kristalo wakhala anapatsidwa chidwi kwambiri, mwa amene doping malamulo ndi njira yofunika kwambiri.Mu...Werengani zambiri -
Ndemanga Yachidule ya Lithium Niobate Crystal ndi Ntchito Zake - Gawo 2: Chidule cha Lithium Niobate Crystal
LiNbO3 sichipezeka m'chilengedwe ngati mchere wachilengedwe.Mapangidwe a kristalo a makristasi a lithiamu niobate (LN) adanenedwa koyamba ndi Zachariasen mu 1928. Mu 1955 Lapitskii ndi Simanov anapereka magawo a lattice a hexagonal ndi trigonal system of LN crystal ndi X-ray powder diffraction analysis.Mu 1958 ...Werengani zambiri -
Ndemanga Yachidule ya Lithium Niobate Crystal ndi Ntchito Zake - Gawo 1: Chiyambi
Lithium Niobate (LN) crystal imakhala ndi polarization yapamwamba kwambiri (0.70 C/m2 pa kutentha kwa chipinda) ndipo ndi kristalo wa ferroelectric wokhala ndi kutentha kwambiri kwa Curie (1210 ℃) komwe kumapezeka pakali pano.LN crystal ili ndi makhalidwe awiri omwe amakopa chidwi chapadera.Choyamba, ili ndi zotsatira zambiri zapamwamba za photoelectric ...Werengani zambiri -
Chidziwitso Chachikulu cha Crystal Optics, Gawo 2: kuthamanga kwa gawo la optical wave ndi liwiro la mzere
Liwiro lomwe kutsogolo kwa mafunde a ndege ya monochromatic kumafalikira motsatira njira yake yodziwika bwino kumatchedwa gawo liwiro la mafunde.Liwiro lomwe mphamvu yamafunde amayendera imatchedwa ray velocity.Komwe kuwala kumayenda monga momwe diso la munthu limawonera ndi kumene ...Werengani zambiri -
Kudziwa Kwambiri kwa Crystal Optics, Gawo 1: Tanthauzo la Crystal Optics
Crystal Optics ndi nthambi ya sayansi yomwe imaphunzira kufalikira kwa kuwala mu kristalo imodzi ndi zochitika zake.Kufalikira kwa kuwala mu ma kiyubiki makhiristo ndi isotropic, sikusiyana ndi makristalo a amorphous amogeneous.M'makina ena asanu ndi limodzi a kristalo, mawonekedwe wamba ...Werengani zambiri -
Kupita Patsogolo Pakafukufuku wa Makristalo Osinthika a Electro-Optic Q - Gawo 8: KTP Crystal
Potaziyamu titanium oxide phosphate (KTiOPO4, KTP mwachidule) kristalo ndi kristalo wopanda mzere wokhala ndi zinthu zabwino kwambiri.Ndi ya orthogonal crystal system, point group mm2 ndi space group Pna21.Kwa KTP yopangidwa ndi njira ya flux, ma conductivity apamwamba amachepetsa kugwiritsa ntchito kwake ...Werengani zambiri -
Kupita Patsogolo Pakafukufuku wa Makristalo Osinthidwa a Electro-Optic Q-Gawo 7: LT Crystal
Mapangidwe a kristalo a lithiamu tantalate (LiTaO3, LT mwachidule) ndi ofanana ndi LN crystal, a cubic crystal system, gulu la 3m, gulu la R3c.LT crystal ili ndi piezoelectric, ferroelectric, pyroelectric, acousto-optic, electro-optic ndi nonlinear optical properties.LT cr...Werengani zambiri
