Molao-motheo oa ho sebetsa oa DPSS Laser

1. Diode Pumping:

Ts'ebetso e qala ka laser diode, e hlahisang leseli la infrared. Leseli lena le sebelisetsoa ho "pompa" kristale ea Nd:YAG, ho bolelang hore e thabisa li-ion tsa neodymium tse kentsoeng ka har'a yttrium aluminium garnet crystal lattice. Laser diode e hlophisitsoe ho bolelele ba maqhubu bo lumellanang le sekhahla sa ho monya ha li-ion tsa Nd, ho netefatsa phetisetso e ntle ea matla.

2. Nd:YAG Crystal:

Kristale ea Nd: YAG ke mokhoa o sebetsang oa ho fumana chelete. Ha li-ion tsa neodymium li thabisoa ke khanya e pompang, li monya matla ebe li fallela sebakeng se phahameng sa matla. Ka mor'a nako e khutšoanyane, li-ion tsena li khutlela boemong bo tlaase ba matla, li lokolla matla a tsona a bolokiloeng ka mokhoa oa photon. Mokhoa ona o bitsoa emission e itlelang feela.

[Bala haholoanyane:Hobaneng re sebelisa kristale ea Nd YAG joalo ka mokhoa oa ho fumana chelete ho laser ea DPSS? ]

3. Phetoho ea Baahi le Phallo e Tsoang:

Hore ketso ea laser e etsahale, phetoho ea baahi e tlameha ho finyelloa, moo li-ion tse ngata li leng boemong ba thabo ho feta boemong bo tlaase ba matla. Ha li-photon li ntse li fofela pele le morao pakeng tsa liipone tsa lehare la laser, li susumetsa li-ion tsa Nd tse thabileng hore li lokolle li-photon tse ling tsa mohato o tšoanang, tataiso le bolelele ba maqhubu. Ts'ebetso ena e tsejoa e le stimulated emission, 'me e matlafatsa matla a khanya ka har'a kristale.

4. Laser Cavity:

Lehare la laser hangata le na le liipone tse peli pheletsong efe kapa efe ea kristale ea Nd:YAG. Seipone se le seng se bonesa haholo, 'me se seng sea bonahatsa hanyenyane, se lumella leseli le leng hore le tsoe ha laser e ntša. Mokoti o thothomela le khanya, 'me oa le holisa ka makhetlo a mangata a hlahisoang.

5. Ho Feta ha Maqhubu (Moloko oa Bobeli oa Harmonic):

Ho fetolela leseli la mantlha la maqhubu (hangata 1064 nm e hlahisoang ke Nd:YAG) ho leseli le letala (532 nm), kristale e imenang habeli (joalo ka KTP - Potassium Titanyl Phosphate) e behiloe tseleng ea laser. Kristale ena e na le thepa ea optical e se nang moeli e lumellang hore e nke li-photon tse peli tsa leseli la pele la infrared le ho li kopanya ho ba photon e le 'ngoe e nang le matla a mabeli, ka hona, halofo ea leqhubu la khanya ea pele. Mokhoa ona o tsejoa e le moloko oa bobeli oa harmonic (SHG).

6. Sephetho sa Leseli le Letala:

Sephetho sa khafetsa sena se imena habeli ke ho ntšoa ha leseli le botala bo khanyang ho 532 nm. Leseli lena le letala joale le ka sebelisoa bakeng sa lits'ebetso tse fapaneng, ho kenyeletsoa li-laser pointers, laser shows, fluorescence excitation in microscopy, le lits'ebetso tsa bongaka.

Ts'ebetso ena kaofela e sebetsa hantle haholo 'me e lumella tlhahiso ea matla a phahameng, khanya e tala e lumellanang ka mokhoa o kopanetsoeng le o ka tšeptjoang. Senotlelo sa katleho ea laser ea DPSS ke ho kopanya mecha ea litaba e tiileng (Nd: YAG crystal), ho pompa diode ka katleho, le ho imena habeli habeli ho fihlela bolelele bo batloang ba khanya.