Ts'ebetso ea laser e tloaelehile haholo bophelong ba rona ba letsatsi le letsatsi mme ba bangata ba rona re e tseba haholo. U ka 'na ua utloa hangata hore mantsoe nanosecond laser, laser picosecond, femtosecond laser. Kaofela ke tsa laser ea ultrafast. Empa na u tseba ho li khetholla?
Taba ea pele, a re boneng hore na "bobeli" tsena li bolela'ng.
1 nanosecond = 10
-9 ea bobeli
motsotsoana o le mong = 10
-12 ea bobeli
1 femtosecond = 10
-15 ea bobeli
Ka hona, phapang e kholo lipakeng tsa laser ea nanosecond, laser ea picosecond le laser ea femtosecond e nakong ea nako ea tsona.
Moelelo oa laser utlrafastKhale koana, batho ba ile ba leka ho sebelisa laser ho etsa micromachining. Leha ho le joalo, kaha laser ea setso e na le bophara ba pulse e telele le matla a tlase a laser, lisebelisoa tse lokelang ho sebetsoa li bonolo ho qhibiliha le ho lula li fetoha mouoane. Leha beam ea laser e ka shebisoa sebakeng se senyenyane haholo sa laser, tšusumetso ea mocheso ho thepa e ntse e le kholo haholo, e fokotsang ho nepahala ha ts'ebetso. Ho fokotsa mocheso feela ho ka ntlafatsa boleng ba ts'ebetso.
Empa ha laser ea ultrafast e sebetsa ho lisebelisoa, phello ea ts'ebetso e na le phetoho e kholo. Ha matla a pulse a ntse a eketseha haholo, matla a phahameng a matla a matla ho lekana ho tima lisebelisoa tsa elektroniki tse kantle. Kaha tšebelisano lipakeng tsa laser ea ultrafast le thepa e khuts'oane haholo, ion e se e tlositsoe holim'a lintho tse bonahalang pele e fetisetsa matla ho lisebelisoa tse potolohileng, kahoo ha ho na mocheso o tla tlisoa linthong tse potolohileng. Ka hona, ts'ebetso ea laser ea ultrafast e boetse e tsejoa e le ts'ebetso e batang.
Ho na le mefuta e mengata ea likopo tsa laser ea ultrafast tlhahiso ea indasteri. Ka tlase re tla bolela tse seng kae:
1.Ho phunya lesobaKa moralo oa boto ea potoloho, batho ba qala ho sebelisa motheo oa li-ceramics ho nka sebaka sa motheo oa polasetiki oa setso ho hlokomela mocheso o betere. E le ho hokahanya likarolo tsa elektronike, likoti tse nyenyane tse likete tsa μm li hloka ho phunngoa ka boto. Ka hona, ho boloka motheo o tsitsitse ntle le ho sitisoa ke ho kenya letsoho mocheso nakong ea ho phunya sekoti ho fetohile ntho ea bohlokoa haholo. Mme picosecond lase ke sesebelisoa se loketseng.
Laser ea Picosecond e hlokomela ho phunya lesoba ka ho boreha 'me e boloka ho tšoana ha lesoba. Ntle le boto ea potoloho, laser ea picosecond e boetse e sebetsa bakeng sa ho phunya lesoba la boleng bo holimo holim'a filimi e tšesaane ea polasetiki, semiconductor, filimi ea tšepe le safire.
2.Ho ngola le ho itšehaMohala o ka etsoa ka ho sekena ho tsoelang pele ho koahela molumo oa laser. Sena se hloka palo e kholo ea ho hlahlojoa e le hore u kene ka hare ho li-ceramics ho fihlela mohala o fihlile ho 1/6 ea botenya ba thepa. Ebe u arola mojule ka mong ho tloha motheong oa ceramics hammoho le mela ena. Karohano ea mofuta ona e bitsoa scribing.
Mokhoa o mong oa ho arola ke pulse laser ablation cutting. E hloka ablating lintho tse bonahalang ho fihlela thepa ka ho feletseng khaola ka.
Bakeng sa ho ngola le ho itšeha ka holimo, laser ea picosecond le laser nanosecond ke likhetho tse loketseng.
3.Ho tlosoa ho roalaTšebeliso e 'ngoe ea micromachining ea laser ea ultrafast ke ho tlosoa ha li-coating. Sena se bolela ho tlosa ho roala ka mokhoa o nepahetseng ntle le ho senya kapa ho senya thepa ea motheo. The ablation e ka ba mela ea micrometer tse 'maloa bophara kapa tekanyo e kholo ea lisekoere lisenthimithara tse' maloa. Kaha bophara ba ho roala bo nyane haholo ho feta bophara ba ablation, mocheso o ke ke oa fetisetsa ka lehlakoreng. Sena se etsa hore laser ea nanosecond e be e loketseng haholo.
Ultrafast laser e na le bokhoni bo botle le bokamoso bo ts'episang. Ha e na ts'ebetso ea morao-rao e hlokahalang, boiketlo ba ho kopanya, ts'ebetso e phahameng ea ts'ebetso, tšebeliso e tlase ea thepa, tšilafalo e tlase ea tikoloho. E 'nile ea sebelisoa haholo likoloing, lisebelisoa tsa elektronike, lisebelisoa, tlhahiso ea mechine, joalo-joalo. Ho boloka laser ea ultrafast e sebetsa hantle ka nako e telele, mocheso oa eona o tlameha ho bolokoa hantle. S&A Letoto la CWUP la Teyuli-chiller tsa metsi tse nkehang li loketse haholo bakeng sa ho pholisa li-lasers tsa ultrafast ho fihla ho 30W. Litsi tsena tsa laser chiller li na le boemo bo holimo haholo ba ho nepahala ha ± 0.1 ℃ 'me li tšehetsa tšebetso ea puisano ea Modbus 485. Ka pipeline e entsoeng hantle, monyetla oa ho hlahisa bubble e se e le nyane haholo, e leng se theolang tšusumetso ho laser e potlakileng haholo.
