LPT-2 Pūnaehana Hoʻokolohua no ka Acousto-Optic Effect

ʻO ka wehewehe pōkole:

Acousto-optic hopena hoʻokolohua mea he hou hanauna o kino hoʻokolohua mea i loko o Colleges a me nā kulanui, ua hoʻohana 'ia e aʻo i ke kino kaʻina o ka uila kahua a me ka malamalama kahua pāʻani i loko o kumu physics hoʻokolohua a me ka pili 'oihana hoʻokolohua, a pili i ka hoʻokolohua noiʻi o optical. kamaʻilio a me ka hana ʻike ʻike.Hiki ke hōʻike maka ʻia e ka oscilloscope pālua (koho).

Ke holo nā hawewe ultrasound ma kahi ʻano, pili ka mea i ke kānana elastic me nā hoʻololi manawa i ka manawa a me ka lewa, e hoʻololi ana i kahi hoʻololi like ʻole i ka helu kuhikuhi refractive o ka medium.ʻO ka hopena, i ka wā e hele ai kahi kukuna o ke kukui ma waena o kahi ʻano i mua o nā hawewe ultrasound ma ke kikowaena, ua ʻokoʻa ʻia e ka mea e hana ana ma ke ʻano he pae kuki.ʻO kēia ke kumumanaʻo kumu o ka hopena acousto-optic.

Hoʻokaʻawale ʻia ka hopena acousto-optic i ka hopena acousto-optic maʻamau a me ka hopena acousto-optic anomalous.Ma kahi ʻano isotropic, ʻaʻole i hoʻololi ʻia ka mokulele o ka polarization o ke kukui hanana e ka acousto-optic interaction (i kapa ʻia ka hopena acousto-optic maʻamau);i loko o kahi ʻano anisotropic, hoʻololi ʻia ka mokulele o ka polarization o ke kukui hanana e ka acousto-optic interaction (i kapa ʻia he anomalous acousto-optic effect).Hāʻawi ka hopena acousto-optic anomalous i ke kumu nui no ka hana ʻana i nā deflectors acousto-optic holomua a me nā kānana acousto-optic tunable.ʻAʻole like me ka hopena acousto-optic maʻamau, ʻaʻole hiki ke wehewehe ʻia ka hopena acousto-optic anomalous e Raman-Nath diffraction.Eia nō naʻe, ma ka hoʻohana ʻana i nā manaʻo pānaʻi parametric e like me ka hoʻohālikelike ʻana i ka manawa a me ka hoʻohālikelike ʻana i nā optics nonlinear, hiki ke hoʻokumu ʻia kahi manaʻo hui o ka launa acousto-optic e wehewehe i nā hopena acousto-optic maʻamau a anomalous.ʻO nā hoʻokolohua ma kēia ʻōnaehana e uhi wale i ka hopena acousto-optic maʻamau i ka media isotropic.