ʻO LPT-2 Pūnaehana Hoʻokolohua no ka Acousto-Optic Effect

Wehewehe

ʻO ka hoʻokolohua hopena Acousto-optic kahi hanauna hou o ka pono hoʻokolohua kino ma Colleges a me nā kula nui, hoʻohana ʻia e hoʻopaʻa i ka hana kino o ka pā uila a me ka launa mālamalama i nā hoʻokolohua physics maʻamau a me nā hoʻokolohua ʻoihana e pili ana, a pili pū i ka noiʻi hoʻokolohua o ka opua ke kamaʻilio a me ka hana ʻikepili opua. Hiki ke ʻike ʻia e ka oscilloscope papalua helu (Koho).

Ke hele ka nalu ultrasound i kahi meakino, hiki i ka medium ke kānana me nā loli manawa i ka manawa a me ka manawa, e hoʻololi ana i nā papa manawa like i ka papa kuhikuhi bias o ka medium. A ʻo kahi hopena, ke hele i kahi kukuna o ka mālamalama ma waena o ka waena i ke alo o nā nalu ultrasound i ka waena, ua diffract ia e ka meakino e hana nei ma ke ʻano he papa manamana. ʻO kēia ke kumumanaʻo o ka acousto-optic hopena.

Hoʻonohonoho ʻia ka hopena Acousto-optic i ka hopena acousto-optic maʻamau a me ka hopena anomic acousto-optic. I kahi ala isotropic, ʻaʻole i loli ka mokulele polarization o ka mālamalama hanana e ka pilina acousto-optic (i kapa ʻia he acousto-optic hopena); i kahi meahana anisotropic, ua hoʻololi ʻia ka mokulele o ka polarization o ke kukui hanana e ka pilina acousto-optic (i kapa ʻia ka anomaly acousto-optic hopena). Hāʻawi ka hopena acousto-optic Anomal i ke kumu kumu no ka hana ʻana i nā deflector acousto-optic holomua a me nā kānana acousto-optic i hiki ke hoʻopili ʻia. ʻAʻole like me ka hopena acousto-optic maʻamau, ʻaʻole hiki ke wehewehe ʻia ka hopena acousto-optic anomalos e ka diffraction a Raman-Nath. Eia nō naʻe, ma ka hoʻohana ʻana i nā manaʻo pilina parametric e like me ka momentum match a me ke kuhi hewa ʻole ʻana i nā optic nonlinear, hiki ke hoʻokumu ʻia kahi kumumanaʻo i hoʻohui ʻia o ka pilina acousto-optic e wehewehe i nā hopena acousto-optic maʻamau. Uhi wale nā ​​hoʻokolohua i kēia ʻōnaehana i ka hopena acousto-optic maʻamau i ka pāpāho isotropic.

Nā Laʻana Hoʻokolohua 

1. E nānā i ka diffraction a Bragg a ana i ka huina diffraction a Bragg

2. Hōʻike i ka hawewe modulate acousto-optic

3. Nānā i ka hanana defect acousto-optic

4. E ana i ka pono o ka diffraction acousto-optic a me ka bandwidth

5. E ana i ka wikiwiki o ka huakaʻi o nā nalu ultrasound i kahi meakino

6. Hoʻohālikelike i ka kamaʻilio opua me ka hoʻohana ʻana i ke ʻano modulate acousto-optic

Hoakaka