Dab tsi yog qhov kev siv ntawm diffraction grating?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Diffraction gratings yuav pab tau thaum twg lub teeb yuav tsum tau muab faib mus rau hauv nws cais frequencies (los yog wavelengths), piv txwv li nyob rau hauv spectroscopy. Lawv yog cov khoom tseem ceeb hauv spectroscopy hauv astronomy, qhov twg ntau cov ntaub ntawv tau txais los ntawm kev txheeb xyuas spectro los ntawm cov hnub qub, thiab lwm yam.

Raws li txoj cai, lub diffraction grating ua li cas?

Hauv optics, a diffraction grating yog ib qho khoom siv kho qhov muag nrog cov qauv ncua sij hawm uas sib cais thiab cuam tshuam lub teeb rau hauv ob peb kab sib txawv ntawm cov lus qhia sib txawv.

Qhov thib ob, qhov diffraction zoo li cas? Diffraction gratings Cov kev txawv txav grating transforms ib qho teeb meem beam ntawm lub teeb rau hauv spectrum. Spectra tsim los ntawm kev txawv txav gratings yog heev pab tau nyob rau hauv daim ntawv thov los ntawm kev kawm cov qauv ntawm cov atoms thiab molecules rau kev tshawb nrhiav cov muaj pes tsawg leeg ntawm cov hnub qub.

lub hom phiaj ntawm grating yog dab tsi?

Ib diffraction grating ua zoo li lub prism cais lub teeb rau hauv qhov chaw raws li lub wavelength. Nws muaj me me, feem ntau yog ntu ntu uas cuam tshuam lub kaum sab xis ntawm qhov teeb meem teeb meem. Polychromatic (multi wavelength) lub teeb qhov chaw yog tsim los ntawm monochromatic (ib lub wavelength) cov khoom.

Dab tsi yog qhov kev sim diffraction grating?

Diffraction Grating Experiment : Wavelength ntawm Laser Teeb. Thaum lub teeb tsis sib tshooj lawv tsim kev cuam tshuam, thiab cov qauv tshwm sim los ntawm qhov no tuaj yeem siv los txiav txim qhov wavelength ntawm lub teeb. Ua qhov txias kev sim diffraction grating los txiav txim lub wavelength ntawm laser lub teeb emitted los ntawm tej laser pointer.