Nhazi laser bụ ihe a na-ahụkarị na ndụ anyị kwa ụbọchị na ọtụtụ n'ime anyị maara ya nke ọma. Ị nwere ike na-anụkarị na okwu nanosecond laser, picosecond laser, femtosecond laser. Ha niile bụ nke ultrafast laser. Ma ị maara otú e si ekewa ha?
Nke mbụ, ka anyị chọpụta ihe "nke abụọ" a pụtara.
1 nanosecond = 10
-9 nke abụọ
1 picosecond = 10
-12 nke abụọ
1 femtosecond = 10
-15 nke abụọ
Ya mere, nnukwu ọdịiche dị n'etiti nanosecond laser, picosecond laser na femtosecond laser dị na oge ha.
Utlrafast laser pụtaraOgologo oge gara aga, ndị mmadụ gbalịrị iji laser rụọ ọrụ micromachining. Otú ọ dị, ebe ọ bụ na laser omenala nwere ogologo usu obosara na obere laser ike, ihe ndị a ga-edozi dị mfe ịgbaze ma nọgide na-ekupụ. Ọ bụ ezie na ọkụ laser nwere ike ilekwasị anya n'ime obere ntụpọ laser, mmetụta okpomọkụ na ihe ndị ahụ ka dị nnọọ ukwuu, nke na-egbochi nhazi nhazi. Naanị ibelata mmetụta okpomọkụ nwere ike imeziwanye ogo nhazi ahụ.
Ma mgbe ultrafast laser na-arụ ọrụ na ihe ndị ahụ, mmetụta nhazi nwere mgbanwe dị ịrịba ama. Ka ike pulse na-abawanye nke ukwuu, njupụta ike dị elu na-adị ike nke ukwuu iji kpochapụ ngwa elektrọnik dị n'èzí. Ebe ọ bụ na mmekọrịta dị n'etiti laser ultrafast na ihe ndị ahụ dị nnọọ mkpụmkpụ, ion abanyelarị n'elu ihe ahụ tupu ya ebuga ike na ihe ndị gbara ya gburugburu, n'ihi ya, a gaghị ebute mmetụta okpomọkụ na ihe ndị gbara ya gburugburu. Ya mere, a na-akpọ nhazi laser ultrafast dị ka nhazi oyi.
Enwere ngwa dị iche iche nke ultrafast laser na mmepụta mmepụta ihe. N'okpuru anyị ga-akpọ aha ole na ole:
1.Ọgbapu oghereN'ime imewe bọọdụ sekit, ndị mmadụ na-amalite iji ntọala ceramics dochie ntọala rọba ọdịnala iji ghọta nrụpụta ọkụ ka mma. Iji jikọọ akụrụngwa eletrọnịkị, ọtụtụ puku μm larịị obere oghere kwesịrị ịkụnye na bọọdụ ahụ. Ya mere, iji mee ka ntọala ahụ kwụsie ike n'emeghị ka ntinye ọkụ na-egbochi ya n'oge a na-egwupụta oghere aghọwo ihe dị mkpa. Na picosecond lase bụ ezigbo ngwá ọrụ.
Laser Picosecond na-achọpụta mkpọpu oghere site na-agwụ ike ma na-edobe ịdị n'otu nke oghere ahụ. Na mgbakwunye na bọọdụ sekit, picosecond laser nwekwara ọdabara iji rụọ oghere dị elu na ihe nkiri rọba dị mkpa, semiconductor, ihe nkiri metal na sapphire.
2. Ide ederede na ịkpụEnwere ike ịmepụta ahịrị site na nyocha na-aga n'ihu iji kpuchie pulse laser. Nke a na-achọ nnukwu nyocha iji banye n'ime ceramics ruo mgbe akara ahụ ruru 1/6 nke ọkpụrụkpụ ihe. Wee kewaa modul nke ọ bụla na ntọala ceramics yana ahịrị ndị a. Ụdị nkewa a ka a na-akpọ ide akwụkwọ.
Ụzọ ọzọ nkewapụ bụ pulse laser ablation cutting. Ọ na-achọ ikpochapụ ihe ahụ ruo mgbe a ga-egbutu ihe ahụ kpamkpam.
Maka ide akwụkwọ na ịkpụcha ihe ndị dị n'elu, picosecond laser na nanosecond laser bụ nhọrọ kacha mma.
3.Mkpuchi mkpuchiNgwa micromachining ọzọ nke laser ultrafast bụ mwepụ mkpuchi. Nke a pụtara kpomkwem iwepu mkpuchi na-emebighị ma ọ bụ mebie ihe ntọala. Ablation nwere ike ịbụ ahịrị nke ọtụtụ micrometer obosara ma ọ bụ nnukwu ọnụ ọgụgụ nke ọtụtụ centimita square. Ebe ọ bụ na obosara nke mkpuchi dị ntakịrị karịa obosara nke ablation, okpomọkụ agaghị agafe n'akụkụ. Nke a na-eme ka laser nanosecond dabara nke ọma.
Ultrafast laser nwere nnukwu ikike na ọdịnihu na-ekwe nkwa. Ọ na-egosi na ọ dịghị post-processing chọrọ, mfe nke mwekota, elu nhazi arụmọrụ, obere ihe oriri, ala gburugburu ebe obibi mmetọ. A na-eji ya n'ọtụtụ ebe na ụgbọala, ngwá electronic, ngwa, ígwè nrụpụta, wdg .. Iji mee ka laser ultrafast na-agba ọsọ nke ọma na ogologo oge, a ghaghị ịnọgide na-enwe okpomọkụ ya nke ọma. S&A Teyu CWUP usoroobere mmiri chillers dị ezigbo mma maka iju laser ultrafast ruo 30W. Nkeji chiller laser ndị a nwere ọkwa dị elu nke ± 0.1 ℃ ma na-akwado ọrụ nkwukọrịta Modbus 485. Site na pipeline emebere nke ọma, ohere nke imepụta afụ adịla ntakịrị, nke na-ebelata mmetụta ya na laser ultrafast.
