EGO
Afere mbufụt, a na-akpọkwa retarder na-adọ, bụ ngwa anya na-agbanwe ọnọdụ nke polarization nke ìhè site na imepụta ihe dị iche n'ụzọ ụzọ (ma ọ bụ ọdịiche na-adọ) n'etiti abụọ Portrization orthogonal abụọ orthogonal. Mgbe ọkụ mere na-agafe na mpempe ebili mmiri na ụdị parameter dị iche iche, ìhè ọpụpụ dị iche, nke nwere ike ịbụ linearly polarized, elliptically polarized, lightly pola ikike, wdg nke efere efegharị efegharị.
A na-ejikarị mpempe akwụkwọ wave mee ihe na-agbanwe agbanwe na oke ọkpụrụkpụ dị ka quartz, calcite ma ọ bụ mica, nke njiri elu ya na ihe dị n'akụkụ elu wafer. Epekele ebugharị ọkọlọtọ (gụnyere λ / 2 na λ / 4 efere efere) na-arụ ọrụ na ikuku na-enye ohere iji ha maka ngwa ndị dị elu na nbibi dị elu karịa 10 J / cm² maka ntanetị 20 ns na 1064 nm.
Ọkara (λ / 2) Wave Plate
Mgbe agabigafechara n’elu ebili mmiri λ / 2, ìhè linearly polarized ka dị n’ahịrị n’agha, n’agbanyeghi, enwere ọdịiche akụkụ (2θ) n’agbata ụgbọelu na-ama jijiji nke mgbakwụnye jikọtara ọnụ na ikuku ịma jijiji nke ihe merenụ na-agbanye ọkụ. Ọ bụrụ θ = 45 Celsius, ụgbọ elu nke ịma mma nke ọpụpụ ìhè dị na mbara igwe na-ama jijiji nke ọkụ ahụ merenụ, ya bụ, mgbe θ = 45 Celsius, efere λ / 2 nwere ike gbanwee stere polarization site na 90 Celsius.
Quarter (λ / 4) Wave Plate
Mgbe oghere dị n'etiti etiti ihe merenụ nke ọkụ na-enwusi ike na eriri anya nke ebili mmiri bụ θ = 45 Celsius, ọkụ na-agafe agafe λ / 4 na-agafe agafe. Ma ọ bụghị ya, mgbe ị gafesịrị efere λ / 4, ọkụ ga-agafe agafe ga-adị linearly. Mpempe ọkụ ebili mmiri λ / 4 nwere mmetụta nha anya na mpịgharị ebili mmiri λ / 2 mgbe ọ kwere ka ọkụ gafere ugboro abụọ.
Nkọwapụta WISOPTIC - Wave Plates
Ọkọlọtọ | Nnukwu Nchịkwa | ||
Ihe | Laser-kristal quartz | ||
Nlele nke dayameta | + 0.0 / -0.2 mm | + 0.0 / -0.15 mm | |
Ndidi Nkwụghachi azụ | Λ / 200 | Λ / 300 | |
Kọwaa Aperture | > 90% nke mpaghara etiti | ||
N'elu elu [S / D] | <20/10 [S / D] | <10/5 [S / D] | |
Ngbanwe Wavefront | λ / 8 @ 632.8 nm | λ / 10 @ 632.8 nm | |
Irikota (otu efere) | ≤ 3 ” | 1 ” | |
Mkpuchi | R < 0.2% na ngbanwe nke etiti | ||
Laszọ Ọgwụ Laser | 10 J / cm² @ 1064 nm, 10 ns, 10 Hz |