Nkà na ụzụ laser ultrafast wafer dị elu

Ọrụ dị elu ultrafast waferteknụzụ laser
Ike dị eluultrafast lasersa na-ejikarị eme ihe n'ichepụta ihe dị elu, ozi, microelectronics, biomedicine, nchebe mba na mpaghara agha, na nchọpụta sayensị dị mkpa dị mkpa iji kwalite mmepụta sayensị na nkà na ụzụ mba na mmepe dị elu. Mpekere dị obereusoro laserya na uru nke elu nkezi ike, nnukwu usu ume na magburu onwe doo àgwà nwere oké ọchịchọ attosecond physics, ihe nhazi ihe na ndị ọzọ na nkà mmụta sayensị na ulo oru ubi, na ọtụtụ ebe na-eche banyere mba ụwa.
N'oge na-adịbeghị anya, otu ndị na-eme nchọpụta na China ejiriwo modul wafer na-emepụta onwe ya na nkà na ụzụ na-emewanyewanyewanye nkà na ụzụ iji nweta ọrụ dị elu (nkwụsi ike dị elu, ike dị elu, àgwà ọkụ dị elu, arụmọrụ dị elu) ultra-fast wafer.lasermmepụta. Site na imewe nke oghere nkwuputa nkwalite na njikwa nke elu okpomọkụ na nkwụsi ike n'ibu nke diski diski n'ime oghere, mmepụta laser nke otu ume ume> 300 μJ, obosara usu <7 ps, nkezi ike> 150 W nwetara. , na arụmọrụ ntụgharị ọkụ na-enwu ọkụ kachasị elu nwere ike iru 61%, nke bụkwa ọrụ ntụgharị anya kachasị elu nke a kọrọ ugbu a. The beam quality factor M2 <1.06 @ 150W, 8h nkwụsi ike RMS <0.33%, mmezu a na-egosi ọganihu dị mkpa na laser ultrafast wafer laser dị elu, nke ga-enyekwu ohere maka ngwa laser ultrafast dị elu.

Ugboro ugboro ugboro ugboro, ike dị elu wafer regeneration amplification system
E gosipụtara usoro nke ihe nrịbama laser wafer na eserese 1. Ọ na-agụnye isi iyi mkpụrụ eriri, isi laser iberi dị mkpa na oghere ampilifaya na-emegharị ahụ. A na-eji oscillator ytterbium-doped fiber oscillator nwere nkezi ike nke 15 mW, ogologo ikuku etiti nke 1030 nm, obosara usu nke 7.1 ps na nkwughachi nke 30 MHz ka ejiri mee ihe dị ka isi mmalite mkpụrụ. Isi laser wafer na-eji Yb arụrụ n'ụlọ: YAG kristal nwere dayameta nke 8.8 mm yana ọkpụrụkpụ nke 150 µm na sistemu mgbapụta strok 48. Isi iyi mgbapụta na-eji ahịrị zero-phonon LD nwere ogologo nm mkpọchi 969 nm, nke na-ebelata ntụpọ quantum ruo 5.8%. Ọdịdị dị jụụ pụrụ iche nwere ike ime ka kristal wafer dị jụụ ma hụ na nkwụsi ike nke oghere mmeghari ahụ. Oghere na-emewanyewanye ihe na-emepe emepe nwere mkpụrụ ndụ Pockels (PC), Thin Film Polarizers (TFP), Quarter-Wave Plates (QWP) na resonator dị elu. A na-eji ndị na-ekewapụ ihe iji gbochie ìhè amụbawanye ka ọ ghara imebi isi mmalite mkpụrụ. A na-eji ihe dịpụrụ adịpụ nke nwere TFP1, Rotator na Half-Wave Plates (HWP) iji kewapụ mkpụrụ ntinye na mkpụrụ akụ. Mkpụrụ mkpụrụ akụ na-abanye n'ime ụlọ nkwalite nkwalite site na TFP2. Barium metaborate (BBO) kristal, PC, na QWP jikọtara iji mepụta mgba ọkụ anya nke na-etinye voltaji dị elu oge ụfọdụ na PC iji họrọ ijide mkpụrụ akụ mkpụrụ wee gbasaa ya azụ na gaba n'ime oghere. Usu a na-achọsi ike na-agbagharị n'ime oghere ma na-abawanye nke ọma n'oge mgbasagharị njem ahụ site n'ịgbanwe oge mkpakọ nke igbe ahụ nke ọma.
Igwe ọkụ na-eme ka wafer regeneration na-egosi arụmọrụ dị mma ma na-arụ ọrụ dị mkpa na mpaghara mmepụta ihe dị elu dị ka oké ultraviolet lithography, isi iyi mgbapụta attosecond, 3C electronics, na ụgbọ ala ike ọhụrụ. N'otu oge ahụ, a na-atụ anya na a ga-etinye teknụzụ laser wafer na nnukwu ikengwaọrụ laser, na-enye ụzọ nnwale ọhụrụ maka nhazi na nchọpụta dị mma nke ihe na nanoscale space scale na femtosecond time scale. Na ihe mgbaru ọsọ nke ijere isi mkpa nke mba, oru ngo otu ga-anọgide na-elekwasị anya laser technology ọhụrụ, n'ihu agbaji site nkwadebe nke strategic elu-ike laser kristal, na n'ụzọ dị irè melite onwe nnyocha na mmepe ikike nke laser ngwaọrụ na. mpaghara ozi, ike, akụrụngwa dị elu na ihe ndị ọzọ.