Ubuhanga buhanitse ultrafast wafer laser tekinoroji

Gukora cyane ultrafast wafertekinoroji ya laser
Imbaraga-nyinshiIbikoresho bya ultrafastzikoreshwa cyane mu nganda zateye imbere, amakuru, microelectronics, biomedicine, ingabo z’igihugu ndetse n’ingabo za gisirikare, kandi ubushakashatsi bwa siyansi bufite akamaro ni ngombwa mu guteza imbere udushya mu bumenyi n’ikoranabuhanga mu gihugu no mu iterambere ryiza. Gucisha makeSisitemuhamwe nibyiza byayo bifite ingufu zingana, ingufu nini nini nubwiza buhebuje bukenera cyane muri fiziki ya attosecond, gutunganya ibikoresho nizindi nzego zubumenyi ninganda, kandi ihangayikishijwe cyane nibihugu byo kwisi.
Vuba aha, itsinda ry’ubushakashatsi mu Bushinwa ryakoresheje ubwikorezi bwa wafer module hamwe n’ikoranabuhanga ryongera imbaraga mu kongera imbaraga kugira ngo bigere ku bikorwa byinshi (ituze ryinshi, imbaraga nyinshi, urumuri rwiza cyane, rukora neza) wafer yihuta cyanelaserIbisohoka. Binyuze mu gishushanyo mbonera cya amplifier cavity no kugenzura ubushyuhe bwubuso hamwe nubukanishi bwimikorere ya disiki ya kirisiti mu cyuho, lazeri isohora ingufu za pulse imwe> 300 μJ, ubugari bwa pulse <7 ps, imbaraga zingana> 150 W ziragerwaho , kandi urumuri rwinshi-rumuri rwo guhindura imikorere rushobora kugera kuri 61%, nabwo aribwo buryo bwiza bwo guhindura ibintu byavuzwe kugeza ubu. Ikintu cyiza cya M2 <1.06@150W, 8h itekanye RMS <0.33%, iki cyagezweho kigaragaza iterambere ryingenzi mubikorwa bya ultrafast wafer ya laser, bizatanga amahirwe menshi yo gukoresha ingufu za ultrafast zikoreshwa cyane.

Inshuro nyinshi zisubiramo, imbaraga nyinshi wafer yoguhindura sisitemu yo kongera imbaraga
Imiterere ya wafer laser amplifier yerekanwa ku gishushanyo cya 1. Harimo isoko yimbuto ya fibre, umutwe muto wa laser umutwe hamwe nu mwobo wongera imbaraga. Ytterbium-Dope fibre oscillator ifite impuzandengo ya mW 15, uburebure bwo hagati ya 1030 nm, ubugari bwa pulse ya 7.1 ps nigipimo cyo gusubiramo 30 MHz yakoreshejwe nkisoko yimbuto. Umutwe wa wafer laser ukoresha Yb: YAG kristal ifite diameter ya mm 8.8 nubugari bwa 150 µm hamwe na sisitemu yo kuvoma 48. Inkomoko ya pompe ikoresha umurongo wa zeru-fonon LD hamwe nuburebure bwa 969 nm bwo gufunga, bigabanya inenge ya kwant kugeza 5.8%. Imiterere idasanzwe yo gukonjesha irashobora gukonjesha neza wafer ya kirisiti kandi ikemeza ituze ryimyororokere. Imyororokere yongera imbaraga igizwe na selile ya Pockels (PC), Thin Film Polarizers (TFP), Quarter-Wave Plates (QWP) hamwe na resonator ihamye cyane. Akato gakoreshwa mu gukumira urumuri rwongerewe kwangiza inkomoko y'imbuto. Imiterere yo kwigunga igizwe na TFP1, Rotator na Half-Wave Plate (HWP) ikoreshwa mugutandukanya imbuto zinjiza hamwe na pulses zongerewe. Imbuto y'imbuto yinjira mu cyumba cyo kongera imbaraga binyuze muri TFP2. Barium metaborate (BBO) kristu, PC, na QWP ikomatanya kugirango ikore switch optique ikoresha voltage ndende mugihe kuri PC kugirango ihitemo ifata imbuto hanyuma ikwirakwize inyuma no mu cyuho. Impyisi yifuzwa iranyeganyega mu cyuho kandi ikongerwaho neza mugihe cyo kuzenguruka ingendo mukuzuza neza igihe cyo kwikuramo agasanduku.
Amplifier ya wafer yerekana imikorere myiza kandi izagira uruhare runini mubikorwa byo mu rwego rwo hejuru nko gukora ultraviolet lithographe ikabije, isoko ya pompe ya attosekond, ibikoresho bya elegitoroniki 3C, hamwe n’imodoka nshya. Muri icyo gihe, tekinoroji ya wafer iteganijwe gukoreshwa kuri nini-ikomeye cyaneibikoresho bya laser, gutanga uburyo bushya bwubushakashatsi bwo gushiraho no gutahura neza ibintu kurwego rwa nanoscale umwanya munini hamwe nigihe cya femtosekond. Hamwe nintego yo gukorera ibikenewe byigihugu cyane, itsinda ryumushinga rizakomeza kwibanda ku guhanga udushya mu ikoranabuhanga rya laser, kurushaho guca mu itegurwa ry’ingamba zikomeye zifite ingufu za lazeri, no kunoza neza ubushakashatsi bwigenga n’ubushobozi bwiterambere ry’ibikoresho bya laser muri imirima yamakuru, ingufu, ibikoresho byo murwego rwohejuru nibindi.