Lanthanum gallium silicate (La₃Ua ʻōlelo ʻo Ga₅SiO₁₄, LGS) pili i ka ʻōnaehana kristal tripartite, pūʻulu kiko 32, pūʻulu ākea P₃₂₁ (No.150). He nui nā hopena o LGS e like me ka piezoelectric, electro-optical, optical rotation, a hiki ke hoʻohana ʻia i mea laser ma o ka doping. I ka makahiki 1982, ʻo Kaminskyet al. hōʻike i ka ulu ʻana o nā kristal LGS doped. Ma 2000, ua hoʻomohala ʻia nā kristal LGS me ke anawaena o 3 iniha a me ka lōʻihi o 90 mm e Uda a me Buzanov.

ʻO LGS crystal kahi mea piezoelectric maikaʻi loa me ke ʻano ʻoki ʻana o ka coefficient wela. Akā ʻokoʻa mai nā noi piezoelectric, pono nā noi electro-optic Q-switching i ka ʻoi aku ka maikaʻi o ka kristal. I ka makahiki 2003, ʻo Konget al. Ua ulu maikaʻi nā kristal LGS me ka ʻike ʻole ʻia o nā hemahema macroscopic ma o ka hoʻohana ʻana i ke ʻano Czochralski, a ʻike ʻia e pili ana ka lewa ulu i ke kala o nā kristal. Ua loaʻa iā lākou nā aniani LGS kala ʻole a me ka hina a ua hana ʻo LGS i EO Q-switch me ka nui o 6.12 mm × 6.12 mm × 40.3 mm. Ma 2015, hoʻokahi hui noiʻi ma ke Kulanui ʻo Shandong i ulu maikaʻi i nā kristal LGS me ke anawaena 50 ~ 55 mm, lōʻihi 95 mm, a me ke kaumaha 1100 g me ka ʻike ʻole o nā hemahema macro.

Ma 2003, ʻo ka hui noiʻi i ʻōlelo ʻia ma luna o ke Kulanui ʻo Shandong e hoʻokuʻu i ka kukuna laser e hele i loko o ke aniani LGS ʻelua a hoʻokomo i kahi pā hawewe hawewe e pale aku i ka hopena o ka hoʻololi ʻana, no laila ua ʻike ʻia ka hoʻohana ʻana i ka hopena rotation optical o LGS crystal. Ua hana ʻia ka LGS EO Q-switch mua a hoʻohana pono ʻia i ka ʻōnaehana laser.

I ka makahiki 2012, ʻo Wang et al. ua hoʻomākaukau i kahi LGS electro-optic Q-switch me ka nui o 7 mm × 7 mm × 45 mm, a ʻike i ka hoʻopuka ʻana o 2.09 μm pulsed laser beam (520 mJ) i loko o ke kukui uila i puhi ʻia Cr, Tm, Ho: YAG ʻōnaehana laser. . I ka makahiki 2013, 2.79 μm pulsed laser beam (216 mJ) i hoʻokō ʻia i loko o ke kukui uila i hoʻomake ʻia Cr, Er: YSGG laser, me ka laula pulse 14.36 ns. I ka makahiki 2016, ʻo Maet al. ua hoʻohana i ka 5 mm × 5 mm × 25 mm LGS EO Q hoʻololi i Nd: LuVO4 laser nenoaiu, e ike i ka repetition rate o 200 kHz, o ia ka kiʻekiʻe repetition rate o LGS EO Q-switched laser nenoaiu i hoike akea i keia manawa.

Ma ke ʻano he mea hoʻololi EO Q, ʻoi aku ka maikaʻi o ke aniani LGS a me ka paepae pōʻino kiʻekiʻe, a hiki ke hana ma ke alapine repetition kiʻekiʻe. Eia nō naʻe, he nui nā pilikia: (1) He pipiʻi ke kumukūʻai maka o LGS crystal, a ʻaʻohe mea holomua i ka hoʻololi ʻana i ka gallium me ka alumini ka mea maʻalahi; (2) He liʻiliʻi ka helu EO o LGS. I mea e hōʻemi ai i ka voltage hana ma luna o ka manaʻo o ka hōʻoia ʻana i ka lawa o ka aperture, pono e hoʻonui ʻia ka lōʻihi aniani o ka mea hana, ʻaʻole ia e hoʻonui wale i ke kumukūʻai akā hoʻonui pū i ka nalowale hoʻokomo.

LGS Crystal – WISOPTIC TECHNOLOGY