LPT-2 Yekuongorora Sisitimu yeAcousto-Optic Mhedzisiro
Tsananguro
Acousto-optic athari kuyedza chizvarwa chitsva chechimbo chekuyedza mumacollege nemayunivhesiti, chinoshandiswa kuongorora mashandiro emagetsi emagetsi uye kudyidzana kwechiedza mune yekutanga fizikisi kuyedza uye inoenderana nehunyanzvi hwekuyedza, uye zvakare inoshanda kune yekuyedza kwekuongorora kweiyo optical. kutaurirana uye kuona kwemaziso kugadzirisa. Inogona kuratidzwa nemadhijitari maviri oscilloscope (Inesarudzo).
Kana masaisai e-ultrasound achifamba nepakati, iyo yepakati inoenderana nekunetsekana uye nekuchinja kwe periodic mune zvese nguva nenzvimbo, zvichikonzera shanduko yakafanana yenguva nenguva muindekisi yekuratidzira yepakati. Nekuda kweizvozvo, kana mwenje wechiedza ukapfuura nepakati nepakati paine masaisa e ultrasound mukati, inoparadzaniswa nepakati ichiita sechikamu chesefa. Iyi ndiyo dzidziso yakakosha yeacousto-optic athari.
Acousto-optic athari yakarongedzwa kuita zvakajairika acousto-optic mhedzisiro uye anomalous acousto-optic mhedzisiro. Mune isotropic yepakati, iyo ndege yekuparadzanisa yechiitiko chechiedza haina kuchinjwa neacousto-optic kudyidzana (inonzi yakajairwa acousto-optic maitiro); mune anisotropic svikiro, iyo ndege yekuparadzanisa yechiitiko chechiedza inoshandurwa neacousto-optic kudyidzana (inonzi anomalous acousto-optic athari). Anomalous acousto-optic athari inopa hwaro hwakakosha hwekugadzira epamberi acousto-optic deflectors uye inogadziriswa acousto-optic mafirita. Kusiyana neyakajairika acousto-optic mhedzisiro, anomalous acousto-optic mhedzisiro haigone kutsanangurwa naRaman-Nath diffraction. Nekudaro, nekushandisa parametric yekudyidzana pfungwa senge yekumhanyisa enzanirana uye kusatenderana mune zvisina mutsetse optics, yakabatana dzidziso yeacousto-optic kudyidzana inogona kusimbiswa kutsanangura zvese zvakajairika uye zvisina kunaka acousto-optic mhedzisiro. Iko kuyedzwa mune ino system kunongovhara zvakajairika acousto-optic mhedzisiro muisotropic midhiya.
Edza Mienzaniso
1. Cherekedza Bragg kusiyanisa uye kuyera Bragg diffraction angle
2. Ratidza acousto-optic modulation waveform
3. Cherekedza acousto-optic deflection phenomenon
4. Kuyera acousto-optic diffraction kunyatsoshanda uye bandwidth
5. Enzanisa iyo velocity yekufamba kweiyo ultrasound mafungu mune yepakati
6. Tevedzera oparesheni yekutaurirana uchishandisa acousto-optic modulation maitiro
Magadzirirwo
|
Tsananguro |
Magadzirirwo |
| Iye-Ne Laser Kuburitsa | <1.5mW@632.8nm |
| LiNbO3 Crystal | Electrode: X surface gold plated electrode flatness <λ/8@633nmTransmittance range: 420-520nm |
| Polarizer | Optical aperture Φ16mm / Wavelength renji 400-700nmPolarizing degree 99.98% Transmissivity 30% (paraxQllel); 0.0045% (yakamira) |
| Detector | PIN pikicha |
| Simba Bhokisi | Kubuditsa sine wave modulation amplitude: 0-300V inoenderera inogadziriswaOutput DC tsvete voltage: 0-600V inoenderera inochinjika kuburitsa kubuda frequency: 1kHz |
| Optical Rail | 1m, Aluminium |
