LPT-2 Faʻataʻitaʻiga System mo Acousto-Optic Aʻafiaga

Faʻamatalaga

Acousto-optic aafiaga faʻataʻitaʻiga o se fou augatupulaga o le faʻataʻitaʻiga faʻamalositino mea faigaluega i Kolisi ma iunivesite, e faʻaaoga e suʻesuʻe ai le faʻagasologa o le tino o le eletise malae ma le malamalama faʻafesoʻotaʻi fola i faʻavae faataʻitaʻi faʻataʻitaʻiga ma fesoʻotaʻi faʻataʻitaʻiga faʻataʻitaʻi, ma e faʻaoga foi i le faʻataʻitaʻiga suʻesuʻega o vaʻaiga fesoʻotaʻiga ma vaʻaiga faʻamatalaga faʻapitoa. E mafai ona faʻaaliga vaʻaia e oscilloscope faʻalua numera (Filifili).

Pe a femalagaaʻi galu ultrasound i se auala, o le auala e mafai ona faʻafaigata faʻaletonu ma suiga faavaitaimi i taimi uma ma avanoa, mafua ai le tutusa suiga faavaitaimi i le refact index o le auala. O lona iʻuga, pe a pasia se ave o le malamalama i se auala i le i ai o ultrasound galu i le auala, e diffraction e le auala galue o se vaega valavala. Lenei o le faʻavae autu o le acousto-optic aafiaga.

Acousto-optic aafiaga ua faʻavasegaina i masani acousto-optic aafiaga ma anomalos acousto-optic aafiaga. I se isotropic auala, o le vaʻalele o polarization o le mea na tupu moli e le suia e le acousto-optic fegalegaleaiga (taʻua o masani acousto-optic aafiaga); i se anisotropic auala, o le vaalele o polarization o le mea na tupu moli ua suia e le acousto-optic fegalegaleaiga (taʻua anomalos acousto-optic aafiaga). O le Anomalous acousto-optic effect e maua ai le faʻavae autu mo le fausiaina o alualu i luma o le acousto-optic deflectors ma le mafai ona faʻamamaina acousto-optic filters. E le pei ole masani ole acousto-optic, ole anomalos acousto-optic aafiaga e le mafai ona faʻamatalaina e Raman-Nath diffraction. Peitaʻi, i le faʻaaogaina o mataupu e fesoʻotaʻi ai le parametric e pei o le momentum match ma le le fetaui lelei i optlinear nonlinear, e mafai ona faʻamautuina se talitonuga tuʻufaʻatasia o le acousto-optic e faʻamatala ia lagona masani ma le masani aʻi. O faʻataʻitaʻiga i lenei faiga e naʻo le ufiufi masani acousto-optic aafiaga i isotropic ala faʻasalalau.

Faʻataʻitaʻiga Faʻataʻitaʻiga 

1. Matauina le eseesega o Bragg ma fuaina le Bragg diffraction angle

2. Faʻaalia le fesuiaiga o gaioiga faʻaosofia o le acousto-optic

3. Matauina le teteʻe ese o le acousto-optic

4. Fua fua le lelei o le eseesega o le acousto-optic ma le bandwidth

5. Fua le saoasaoa o femalagaaiga o galu ultrasound i se auala

6. Faʻataʻitaʻi vaʻaiga fesoʻotaʻiga faʻaaogaina acousto-optic modulation metotia

Faʻamatalaga