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LPT-2 Faiga Fa'ata'ita'iga mo Acousto-Optic Effect

Fa'amatalaga Puupuu:

Acousto-optic aafiaga faʻataʻitaʻiga o se augatupulaga fou o meafaifaʻaili faʻataʻitaʻiga faʻaletino i Kolisi ma iunivesite, e faʻaaogaina e suʻesuʻe ai le faʻagasologa faʻaletino o le eletise eletise ma fefaʻatauaʻiga malamalama i totonu o suʻesuʻega faʻapitoa o le fisiki ma suʻesuʻega faʻapolofesa faʻapitoa, ma faʻaoga foi i suʻesuʻega faʻataʻitaʻiga o mata feso'ota'iga ma fa'amatalaga mata'ina.E mafai ona fa'aali va'aia ile numera lua oscilloscope (filifiliga).

Pe a fealua'i galu ultrasound i totonu o se ala, o le alalaupapa e a'afia i le elastic strain ma suiga fa'avaitaimi i taimi uma ma avanoa, ma mafua ai se suiga fa'avaitaimi tutusa i le fa'asino igoa o le alalaupapa.O se taunuuga, pe a pasi atu se ave o le malamalama i totonu o se ala i le i ai o galu o le ultrasound i totonu o le alalaupapa, e faʻaseseina e le ala o loʻo galue o se vaega faʻapipiʻi.Ole a'oa'oga fa'avae lea ole acousto-optic effect.

Acousto-optic aafiaga ua faavasegaina i aafiaga acousto-optic masani ma anomalous acousto-optic aafiaga.I totonu o se faʻaogaina o le isotropic, o le vaalele o le polarization o le malamalama faʻalavelave e le suia e le acousto-optic fegalegaleaiga (taʻua masani acousto-optic aafiaga);i totonu o se ala o le anisotropic, o le vaalele o le polarization o le malamalama faʻalavelave ua suia e le acousto-optic fegalegaleaiga (taʻua anomalous acousto-optic aafiaga).A'afiaga o le acousto-optic anomalo e maua ai le fa'avae autu mo le fa'atupuina o fa'a'ese'ese acousto-optic fa'apitoa ma filiga fa'alogo fa'alogo.E le pei o le masani acousto-optic aafiaga, anomalous acousto-optic aafiaga e le mafai ona faamatalaina e Raman-Nath diffraction.Ae ui i lea, e ala i le fa'aogaina o manatu fa'atatau o feso'ota'iga e pei o le fa'afetauiga o le malosi ma le le fetaui i mata e le laina, e mafai ona fa'atūina se manatu tu'ufa'atasi o feso'ota'iga acousto-optic e fa'amatala uma ai a'afiaga acousto-optic masani ma anomalous.O fa'ata'ita'iga i totonu o lenei faiga e na'o le fa'aogaina masani acousto-optic i fa'asalalauga isotropic.


Fa'amatalaga Oloa

Faailoga o oloa

Fa'ata'ita'iga Fa'ata'ita'i

1. Mata'ituina le eseesega o Bragg ma fua le tulimanu o le eseesega o Bragg

2. Fa'aalia le fa'aoso-optic modulation waveform

3. Mata'ituina le fa'alavelave fa'afuase'i o le acousto-optic

4. Fua le acousto-optic diffraction lelei ma le bandwidth

5. Fua le saoasaoa femalagaa'i o galu ultrasound i totonu o se ala

6. Fa'ata'ita'i feso'ota'iga fa'apitoa e fa'aogaina ai le fa'aogaina o le fa'aogaina o le fa'aogaina o le fa'aogaina

 

Fa'amatalaga

Fa'amatalaga

Fa'amatalaga

He-Ne Laser Output <1.5mW@632.8nm
LiNbO3tioata Electrode: X luga auro fa'apipi'i fa'aeletise mafolafola <λ/8@633nmTransmittance laina: 420-520nm
Polarizer Va'aiga mata Φ16mm / Vave umi galu 400-700nmPolarizing tikeri 99.98%Transmissivity 30% (paraxQllel);0.0045% (tutusa)
Su'esu'e PIN photocell
Pusa Malosiaga Amplitude fa'aogaina o le galu o le sinus Output: 0-300V fa'aauau tunableOutput DC vili fa'aituau: 0-600V fa'aauau fetu'una'i fa'avevela fa'alava: 1kHz
Fa'ailoga Fa'atonu 1m, Alumini

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