LPT-2 Tsarin Gwaji don Tasirin Acousto-Optic

Takaitaccen Bayani:

Gwajin tasirin tasirin Acousto-optic sabon ƙarni ne na kayan aikin gwaji na zahiri a cikin kwalejoji da jami'o'i, ana amfani da su don nazarin tsarin jiki na filin lantarki da hulɗar filin haske a cikin gwaje-gwajen kimiyyar lissafi na asali da gwaje-gwajen kwararru masu alaƙa, sannan kuma ya shafi binciken gwaji na gani na gani. sadarwa da sarrafa bayanan gani.Ana iya nuna shi ta gani ta hanyar oscilloscope biyu na dijital (Na zaɓi).

Lokacin da raƙuman ruwa na duban dan tayi tafiya a cikin matsakaici, matsakaicin yana ƙarƙashin nau'in nau'i na roba tare da canje-canje na lokaci-lokaci a cikin lokaci da sararin samaniya, yana haifar da irin wannan canji na lokaci-lokaci a cikin ma'anar refractive na matsakaici.A sakamakon haka, lokacin da ray na haske ya ratsa ta matsakaici a gaban duban dan tayi taguwar ruwa a cikin matsakaici, shi ne diffracted da matsakaici aiki a matsayin lokaci grating.Wannan shine ainihin ka'idar tasirin acousto-optic.

Tasirin Acousto-optic an rarraba shi cikin tasirin acousto-optic na al'ada da tasirin acousto-optic mara kyau.A cikin matsakaicin isotropic, jirgin sama na polarization na hasken abin da ya faru ba a canza shi ta hanyar hulɗar acousto-optic (wanda ake kira tasirin acousto-optic na al'ada);a cikin matsakaicin anisotropic, jirgin sama na polarization na hasken abin da ya faru yana canzawa ta hanyar hulɗar acousto-optic (wanda ake kira tasirin acousto-optic mara kyau).Tasirin acousto-optic mai ban sha'awa yana ba da maɓalli na tushe don ƙirƙira na ci-gaba na acousto-optic deflectors da masu tace sautin-optic mai kunnawa.Ba kamar tasirin acousto-optic na al'ada ba, tasirin acousto-optic ba zai iya yin bayanin ta hanyar Raman-Nath diffraction ba.Koyaya, ta hanyar amfani da ra'ayoyin ma'amala mai ma'ana kamar daidaitawar lokaci da rashin daidaituwa a cikin na'urorin gani mara kyau, za'a iya kafa ƙa'idar haɗin kai na hulɗar acousto-optic don yin bayani duka na al'ada da tasirin acousto-optic.Gwaje-gwajen da ke cikin wannan tsarin kawai suna rufe tasirin acousto-optic na al'ada a cikin kafofin watsa labarai na isotropic.