Taw qhia txog "Tus Ntsuj Plig" ntawm cov lasers khov kho

Taw qhia txog "Tus Ntsuj Plig" ntawm cov lasers khov kho

Cov dej ntws tseem ceeblaser khov khocov ntaub ntawv

Lub hauv paus ntawm txhua lub laser yog cov khoom ua haujlwm laser, thiab cov khoom ua haujlwm ntawm lub xeev khov kholaseryog qhov khoom khov kho. Feem ntau cov khoom siv laser solid-state yog tsim los ntawm cov crystal matrices thiab cov doped atoms lossis ions nrog laser activity, thaum amorphous (iav) matrices yog qhov tsis tshua muaj. Kev txhim kho tshiab hauv kev siv tshuab ceramic npaj yuav nthuav dav qhov kev siv ntawm cov khoom siv laser pheej yig thiab zoo, uas tuaj yeem ua rau qhov loj dua li cov khoom siv crystal.

Cov khoom siv laser solid-state feem ntau siv

Ruby: Nws cov tshuaj lom neeg yog chromium-doped txhuas oxide (Cr:Al₂O₃). Cov ruby ​​cuav muaj cov tshuaj lom neeg zoo ib yam li cov ruby ​​zoo li pob zeb diamond, tab sis lawv muaj kev ntshiab thiab zoo dua. Lawv zoo li liab dawb thiab muaj lub laser wavelength ntawm 694.3 nanometers.

2. Neodymium-doped yttrium txhuas garnet (Nd:YAG): Siv lead ua los ntawm cov khoom siv dag, nrog lub laser wavelength ntawm 1064 nanometers, nws yog ib feem ntawm lub teeb ze-infrared thiab tsis pom thiab tsis muaj kev nyab xeeb rau lub qhov muag. Nd:YAG tam sim no yog cov khoom siv laser solid-state uas siv dav tshaj plaws, ntau dua li ruby. Lub laj thawj tseem ceeb yog tias nws qhov laser threshold qis dua, thiab nws tuaj yeem ua tiav lub zog tso zis siab dua hauv qab tib lub zog nkag.

3. Neodymium-doped yttrium vanadate (Nd:YVO₄) Feem ntau hu ua "vanadate", nws tau dhau los ua cov khoom siv zoo tshaj plaws rau lub zog qis mus rau nruab nrab (txog li ob peb watts) diode-pumped solid-state lasers vim nws qhov loj stimulated emission cross-section, qis laser threshold thiab polarized output yam ntxwv. Lub wavelengths ua haujlwm yog 1064 nanometers thiab 1340 nanometers, thiab tom qab zaus ob npaug, nws tuaj yeem tso zis lasers nrog wavelengths ntawm 532 nanometers thiab 670 nanometers.

4. Iav Neodymium-doped (Nd:Iav): Siv iav amorphous ua lub matrix, nws cov khoom laser zoo ib yam li Nd:YAG. Nws qhov tsis zoo tseem ceeb yog tias nws cov thermal conductivity qis heev, tsuas yog 1/10 ntawm cov siv lead ua, ua rau nws nyuaj rau txias hauv cov ntawv thov muaj zog siab. Txawm li cas los xij, nws qhov zoo yog qhov tseeb tias nws tuaj yeem ua rau hauv cov xov xwm laser nrog lub cheeb tshaj ib ko taw, tswj tau qhov ceev ntawm lub zog, zam kev puas tsuaj rau cov khoom siv kho qhov muag hauv kilojoule-level.lub tshuab laser pulsed, thiab muaj tus nqi qis dua.

Lwm cov ntaub ntawv tseem ceeb ntawm cov khoom siv laser solid-state, cov ntaub ntawv erbium-doped: suav nrog erbium-doped yttrium txhuas garnet (Er:YAG, qhov tso zis wavelength 2940 nanometers) thiab erbium-doped Iav (Er:Iav, qhov tso zis wavelength 1540 nanometers). Cov ntaub ntawv Holmium doped: suav nrog holmium doped yttrium txhuas garnet (Ho:YAG), holmium doped lithium yttrium fluoride (Ho:YLF), thiab holmium doped Iav (Ho: iav, qhov tso zis wavelength 2000 txog 2100 nanometers). Cov ntaub ntawv Thulium-doped: suav nrog thulium-doped yttrium txhuas garnet (Tm:YAG), thulium-doped lutetium txhuas garnet (Tm:LuAG), thiab thulium-holmium co-doped lithium yttrium fluoride (Tm,Ho:YLF, qhov tso zis wavelength 2000 txog 2030 nanometers). Cov ntaub ntawv Ytterbium-doped: xws li ytterbium-doped potassium gadolinium tungstate (Yb:KGW, qhov tso zis wavelength 1025 txog 1045 nanometers). Alexandrite (qhov tso zis wavelength 655 txog 815 nanometers). Titanium-doped Sapphire (Ti:Sapphire, qhov tso zis wavelength 840 txog 1100 nanometers)