WAVE PLAY
Farantin igiyar ruwa, wanda kuma ana kiranta jigilar lokaci, shine naúrar gani wanda ke canza yanayin haske ta hanyar samar da bambance bambancen hanya (ko bambanci na lokaci) tsakanin bangarorin biyu masu hade da juna. Lokacin da abin da ya faru ya ƙetare faranti tare da nau'ikan sigogi daban, hasken fita yana da bambanci, wanda zai iya kasancewa da hasken layin maraba, haske mai saurin canzawa, hasken da ya kewaya, da sauransu. daga farantin kalaman.
Wuraren faranti ana yinsu ne da kayan juzu'i iri-iri tare da madaidaicin kauri irin su ma'adini, calcite ko mica, wanda akasinsa na gani yayi daidai da yanayin wafer. Matsakaitan faranti (ciki har da λ / 2 da wave / 4 faranti faranti) an gina su ne akan ginin iska wanda ke ba da damar yin amfani da su don aikace-aikacen iko mai ƙarfi tare da saurin lalacewa sama da 10 J / cm² don 20 ns a nisan 1064 nm.
Rabin (λ / 2) Wave Plate
Bayan wucewa cikin farantin girgiza na λ / 2, hasken layi mara haske har ila yau yana cikin layi yana daidaitawa, kodayake, akwai bambanci na kusurwa (2θ) tsakanin jirgin girgiza na haɗakar girgiza da girgiza girgizar lamarin da ya faru. Idan θ = 45 °, rationaukar girgiza na hasken fita yana da kusan mutuƙar girgiza na hasken abin da ya faru, shine, lokacin da θ = 45 °, farantin λ / 2 na iya canza yanayin polarization ta 90 °.
Quarter (λ / 4) Wave Plate
Lokacin da kusurwa tsakanin abin da ya faru jirgin sama na girgiza lamarin wutar lantarki da hasken wutar lantarki mai karfin wuta shine of = 45 °, hasken da ke wuce teburin wave / 4 yana da madaidaiciyar madaidaiciya. In ba haka ba, bayan wucewa ta cikin farantin igiyar ruwa na λ / 4, wutar da aka raba madaidaiciya za ta kasance da layi cikin layi. Farantin walimar λ / 4 yana da tasirin daidai tare da farantin wave / 2 lokacinda ya ba da damar haske ta wuce sau biyu.
Bayanan WISOPTIC - Wave Plates
Daidaitawa | Babban Taimakawa | ||
Kayan aiki | Laser-sa na kwata-kwata | ||
Burin rashin jituwa | + 0.0 / -0.2 mm | + 0.0 / -0.15 mm | |
Ba da haƙuri | ± λ / 200 | ± λ / 300 | |
Share Share | > 90% na yankin tsakiyar | ||
Ingantawar Kasa [S / D] | <20/10 [S / D] | <10/5 [S / D] | |
Watsa shirye-shiryen Wavefront | λ / 8 @ 632.8 nm | λ / 10 @ 632.8 nm | |
Daidaici (farantin karfe) | ≤ 3 ” | 1 ” | |
Mai sakawa | R < 0.2% a zangon tsakiya | ||
Lalacewar Laser | 10 J / cm² @ 1064 nm, 10 ns, 10 Hz |