Inkqubo yoMfuniselo ye-LPT-2 ye-Acousto-Optic Effect

Inkcazelo emfutshane:

Uvavanyo lwesiphumo se-Acousto-optic sisizukulwana esitsha sesixhobo sovavanyo lomzimba kwiiKholeji nakwiiyunivesithi, sisetyenziselwa ukufunda inkqubo ebonakalayo yentsimi yombane kunye nonxibelelwano lwebala elikhanyayo kuvavanyo olusisiseko lwefiziksi kunye nemifuniselo yobuchwephesha enxulumeneyo, kwaye ikwasebenza kuphando lovavanyo lwe-optical. unxibelelwano kunye nokulungiswa kolwazi olubonakalayo.Inokuboniswa ngokubonakalayo nge-digital oscilloscope ephindwe kabini (Ngokuzikhethela).

Xa amaza e-ultrasound ehamba kwindawo ephakathi, i-medium ixhomekeke kwi-elastic strain kunye neenguqu zexesha kunye nexesha kunye neendawo, ezibangela utshintsho lwexesha elifanayo kwi-index refractive ye-medium.Ngenxa yoko, xa i-ray yokukhanya idlula kwi-medium phambi kwamaza e-ultrasound phakathi, iphazamiseka ngokusebenza okuphakathi njengesigaba sokugaya.Le yithiyori esisiseko ye-acousto-optic effect.

Isiphumo se-acousto-optic sihlelwa ngokwesiqhelo se-acousto-optic effect kunye ne-anomalous acousto-optic effect.Kwi-isotropic medium, i-plane ye-polarization yokukhanya kwesiganeko ayitshintshwa yi-acousto-optic interaction (ebizwa ngokuba yi-normal acousto-optic effect);kwi-anisotropic medium, i-plane ye-polarization yokukhanya kwesiganeko iguqulwa yi-acousto-optic interaction (ebizwa ngokuba yi-anomalous acousto-optic effect).Isiphumo esingaqhelekanga se-acousto-optic sibonelela ngesiseko esingundoqo sokwenziwa kweziphambukisi eziphambili ze-acousto-optic kunye nezihluzo ezicokisekileyo ze-acousto-optic.Ngokungafaniyo nesiphumo esiqhelekileyo se-acousto-optic, isiphumo esingaqhelekanga se-acousto-optic ayinakuchazwa yi-Raman-Nath diffraction.Nangona kunjalo, ngokusebenzisa iikhonsepthi zokunxibelelana kweparametric ezinje ngokuthelekisa ukukhawuleza kunye nokudityaniswa kwe-nonlinear optics, ithiyori edibeneyo yokunxibelelana kwe-acousto-optic inokusekwa ukucacisa zombini iziphumo eziqhelekileyo kunye nezingaqhelekanga ze-acousto-optic.Imifuniselo kule nkqubo igubungela kuphela isiphumo esiqhelekileyo se-acousto-optic kwimidiya ye-isotropic.

Thumela i-imeyile kuthi

Iinkcukacha zeMveliso

Iithegi zeMveliso

Linge imizekelo

1. Jonga i-Bragg diffraction kunye nomlinganiselo we-Bragg diffraction angle

2. Bonisa i-acousto-optic modulation waveform

3. Qwalasela isenzeko se-acousto-optic deflection

4. Umlinganiselo we-acousto-optic diffraction kunye ne-bandwidth

5. Ukulinganisa isantya sokuhamba samaza e-ultrasound kwindawo ephakathi

6. Ukulinganisa unxibelelwano lwe-optical usebenzisa i-acousto-optic modulation technique

Iinkcukacha

Inkcazo	Iinkcukacha
I-He-Ne Laser Output	<1.5mW@632.8nm
LiNbO₃Ikristale	I-Electrode: X umphezulu wegolide we-electrode flatness <λ/8@633nmUluhlu lweTransmittance: 420-520nm
I-Polarizer	I-Optical aperture Φ16mm / ububanzi beWavelength 400-700nmPolarizing degree 99.98%Transmissivity 30% (paraxQllel);0.0045% (the nkqo)
Umtshini	I-PIN yefotocell
Ibhokisi yaMandla	Imveliso ye-sine wave yokumodareyitha i-amplitude: 0-300V eqhubekayo ekuqhutyweni.Isiphumo sombane we-DC bias voltage: 0-600V eqhubekayo ehlengahlengiswayo isiphumo somthamo: 1kHz
I-Optical Rail	1m, iAluminiyam