Isistimu Yokuhlola ye-LPT-2 ye-Acousto-Optic Effect

Incazelo emfushane:

I-Acousto-optic effect experiment iyisizukulwane esisha sethuluzi lokuhlola ngokomzimba Emakolishi nasemanyuvesi, isetshenziselwa ukutadisha inqubo ebonakalayo yenkundla kagesi kanye nokusebenzisana kwenkundla yokukhanya ekuhloleni okuyisisekelo kwe-physics kanye nokuhlolwa kochwepheshe okuhlobene, futhi kusebenza ocwaningweni lokuhlola lwe-optical. ukuxhumana kanye nokucutshungulwa kolwazi lwe-optical.Ingaboniswa ngokubonakalayo nge-digital oscilloscope (Ongakukhetha).

Lapho amagagasi e-ultrasound ehamba ngendlela ephakathi, okuphakathi kungaphansi kokucindezeleka okunwebekayo okuhambisana nezinguquko ngezikhathi ezithile kukho kokubili isikhathi nendawo, okubangela ushintsho lwezikhathi ezifanayo kunkomba ye-refractive ye-medium.Ngenxa yalokho, lapho umsebe wokukhanya udlula phakathi nendawo lapho kukhona amagagasi e-ultrasound phakathi nendawo, iphazanyiswa yi-medium esebenza njenge-grating yesigaba.Lena ithiyori eyisisekelo ye-acousto-optic effect.

Umthelela we-Acousto-optic uhlukaniswa waba umphumela ovamile we-acousto-optic kanye nomphumela omangalisayo we-acousto-optic.Endaweni ye-isotropic, indiza ye-polarization yokukhanya kwesigameko ayishintshwa ukusebenzisana kwe-acousto-optic (okuthiwa umphumela ojwayelekile we-acousto-optic);endaweni ye-anisotropic, indiza ye-polarization yokukhanya kwesigameko iguqulwa ukusebenzisana kwe-acousto-optic (okuthiwa umphumela we-anomalous acousto-optic).Umphumela omangalisayo we-acousto-optic unikeza isisekelo esiyinhloko sokwenziwa kweziphambukisi ze-acousto-optic ezithuthukisiwe nezihlungi ze-acousto-optic eziguqulekayo.Ngokungafani nomphumela ojwayelekile we-acousto-optic, umphumela omangalisayo we-acousto-optic awukwazi ukuchazwa yi-Raman-Nath diffraction.Kodwa-ke, ngokusebenzisa imiqondo yokusebenzisana yepharamethikhi efana nokumatanisa umfutho nokungafani kuma-optics angaqondile, ithiyori ehlanganisiwe yokusebenzelana kwe-acousto-optic ingasungulwa ukuze ichaze kokubili imiphumela evamile neyindida ye-acousto-optic.Ukuhlolwa kule sistimu kuhlanganisa kuphela umphumela ovamile we-acousto-optic kumidiya ye-isotropic.

Thumela i-imeyili kithi

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Izibonelo Zokuhlola

1. Bheka i-Bragg diffraction bese ukala i-engeli ye-Bragg diffraction

2. Bonisa i-acousto-optic modulation waveform

3. Qaphela isenzeko sokuchezuka kwe-acousto-optic

4. Linganisa ukusebenza kahle kwe-acousto-optic diffraction kanye nomkhawulokudonsa

5. Linganisa isivinini sokuhamba samagagasi e-ultrasound ngendlela ephakathi

6. Lingisa ukuxhumana okubonakalayo usebenzisa i-acousto-optic modulation technique

Imininingwane

Incazelo	Imininingwane
I-He-Ne Laser Output	<1.5mW@632.8nm
LiNbO₃Ikristalu	I-Electrode: X surface gold plated electrode flatness <λ/8@633nmTransmittance range: 420-520nm
I-Polarizer	Imbobo yokubona Φ16mm /Ububanzi be-Wavelength 400-700nmPolarizing degree 99.98%Transmissivity 30% (paraxQllel);0.0045% (okuqondile)
Umtshina	I-PIN photocell
Ibhokisi Lamandla	I-Output sine wave modulation amplitude: 0-300V ukuqhubeka okuqhubekayoOkukhipha i-DC bias voltage: 0-600V imvamisa yokuphumayo eguquguqukayo eqhubekayo: 1kHz
I-Optical Rail	1m, Aluminium