Cov ntsiab cai thiab kev siv ntawm 632.8nm nws -}} n} ne lasers

Tushelium - neon (nws - n} nas, raws li ib tug sawv cev ntawm cov roj classic roj classic, nyob hauv txoj haujlwm tsis tseem ceeb hauv ntau thaj teb vim nws cov kev ua haujlwm tshwj xeeb thiab kev thov thoob plaws. Especially the He-Ne laser operating at a wavelength of 632.8nm, which is in the visible red light band, is more in line with human visual perception habits. Ntxiv mus, nws muaj cov monochromatic zoo, thiab kev coj ua, ua rau nws siv teeb pom kev tshawb fawb thiab muaj kev lag luam. Hauv - qhov tob nrhiav ntawm lub ntsiab cai, thiab cov ntawv thov ntawm 632.8nm nws {}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}

I. Cov ntsiab cai yooj yim

(Kuv) Ua haujlwm yeeb tshuaj thiab Zog Qib Kev Hloov Tsheb

Cov tshuaj ua haujlwm ntawm nws - Ne} Tsis muaj kev sib xyaw ntawm 5: 1 txog 20: 1, thiab ua haujlwm hauv qis- siab mob. Raws li cov mob tshwj xeeb, thaum hluav taws xob teb tau siv zog, ua kom nrawm, ua ntej sib tsoo nrog Helium atoms thiab ionizing lawv mus rau lub xeev mactionable. Txij li lub zog ntawm kev ua yeeb yam ntawm lub xeev Helium atom yog siab dua qee cov atoms, helly rumping homs, li rumping neon atoms rau ntau dua lub zog. Raws li ntau ntawm neon atoms zoo siab rau lub zog siab, cov pejxeem kev faib khoom faib tawm yog tiav, uas yog qhov tsim nyog rau kev tsim nyog txhawb nqa tawm. Thaum neon atoms ntawm qhov kev hloov pauv siab theem mus rau qis dua, lawv tso teeb ntawm lub wavelength me ntsis ntawm ib txoj kev hloov pauv ntawm neon atoms. Tus txheej txheem no cuam tshuam nrog cov nyom atomic lub cev tshwm sim thiab kev sib txuam ntawm cov khoom me me. Qhov tsim nyog tswj tau xws li cov pa roj, kev tawm tsam siab, thiab kev tawm tsam yog qhov tseem ceeb rau kev tawm ruaj khov ntawm laser.

(II) Tsim qauv ntawm Revelical Revononator kab noj hniav

The optical resonator cavity is one of the core components of the He-Ne laser. It consists of two mirrors with different reflectivities. One end is a high-reflection mirror (HR>99.99%), uas yuav luag txhua yam cuam tshuam; Lwm qhov kawg yog cov zis rau Coupler (OC transmittas tus lej ~ 1%), cia ib qho me me ntawm lub teeb kom dhau los ntawm cov zis laser. Los ntawm kev ua tib zoo tsim qhov ntev thiab cov duab ntawm tus resonator kab noj hniav, cov qauv ntev tuaj yeem tsim cov txiaj ntsig theem no tuaj yeem tsim cov kab noj hniav ruaj khov nyob rau hauv cov kab noj hniav thiab tsis tu ncua. Qhov kev xaiv hom qauv no ua kom lub siab monochromaticity thiab ntau zaus ruaj khov ntawm lub laser. Ib qho ntxiv, cov kab noj hniav kom tsim nyog ntev lav cov tso zis ntev kom haum rau ntau yam kev ntsuas ntshav thiab sim cov kev xav tau. Piv txwv li, hauv kev cuam tshuam hauv kev cuam tshuam, ib lub laser nrog txoj kev ntsuas ntev ntev tuaj yeem tsim kom pom tseeb thiab cov kev ntsuas kom zoo ntawm cov khoom siv me me lossis cov kev hloov tuab.

(III) Kev Tshawb Xyuas Kev Ntsuas Cov Neeg Mob Polarization

Lub teeb emitted los ntawm nws -}} neb feem ntau muaj qee yam yam ntxwv polarization. Muaj qee kis, cov teeb meem tawm tuaj yeem yog polarly polarized, tab sis nyob rau lwm cov qauv tsim thiab kev ua haujlwm, linearly polternized lawm tuaj yeem ua tiav. Lub xeev polarization muaj qhov cuam tshuam tseem ceeb rau ntau yam xwm txheej. Piv txwv li, thaum siv wollaston prism rau cov nqaj sib cav, cov kev taw qhia lub teeb pom kev yuav tsum tau suav tias yog qhov kho kom zoo. Kev tshawb fawb qhia tau tias muaj cov sib txawv ntawm lub sijhawm -} spectral dynamics ntawm S / P cheeb tsam cheeb tsam. Nkag siab cov yam ntxwv no pab txhim kho txoj kev muaj kho qhov muag thiab txhim kho kev ua haujlwm. Los ntawm kev ua haujlwm kom tsim nyog polarization, xws li brewster Windows, lub xeev polarnients ntawm lub laser tuaj yeem tswj tau zoo thiab kho kom tau raws li cov cai thov kom paub.

(IV) Lub Zog Hluav Taws Xob Txiaj Ntsig

Tswj cov neeg ruaj khov hluav taws xob lub zog yog qhov taw qhia tseem ceeb ntawm nws - new laser. Txawm li cas los xij, thaum lub sijhawm ua haujlwm tiag tiag, nws cuam tshuam los ntawm ntau yam xws li kub hloov pauv thiab hloov pauv tam sim no. Yuav kom ua tiav qhov ntsuas ruaj khov ntawm ± 0.5% / teev, ntau yam kev ntsuas tau coj los ua. Ntawm ib sab tes, qhov ntsuas kub kev them nyiaj kho mob yog cov kev soj ntsuam, qhov chaw ua haujlwm tau hloov kho thiab ua haujlwm nyob rau hauv tiag tiag- lub sijhawm los tawm tsam qhov hloov ntawm qhov kub thiab txias; Ntawm qhov tod tes, kho tswj tam sim no ua kom muaj kev ruaj khov thiab muaj txiaj ntsig ntawm txoj kev tshem tawm. Cov thev naus laus zis thiab txoj kev ntseeg tau yooj yim heev thiab kev ruaj khov ntawm lub laser nyob rau hauv ib puag ncig ua haujlwm sib txawv thaum lub sijhawm ua haujlwm ntev.

Ii. Cov Ntsiab Lus Cov Qauv thiab Khoom Lag Luam Hom

(Kuv) Cov lus sib piv raug

Muaj cov qauv sib txawv ntawm 632.8nm nws - Tsis muaj nyob rau ntawm kev ua lag luam, nqaj sib txawv, thiab lub divergence divergence. Feem ntau hais lus, lub zog tuaj yeem los ntawm tus nqi qis ntawm 0.3mw mus rau ib qho siab dua ntawm φ0.5mm thiab divergence kaum sab xis hloov pauv nyob ntawm cov qauv tshwj xeeb. Cov Lasers nqua yog qhov haum rau qee zaus uas tsis tshua xav tau ntawm qhov kev siv lub qhov tseem ceeb, xws li kev qhia ua qauv qhia lossis kev qhia yooj yim thiab; Thaum siab - lub zog loj dua rau cov ntawv thov uas yuav tsum tau ua kom muaj lub teeb pom kev zoo, xws li} - thaj tsam iurradiation. Tsis tas li ntawd, tseem muaj cov lasers tshwj xeeb, xws li cais cov me me cov qauv siv, uas muaj qhov zoo rau kev teeb tsa thiab siv cov khoom sib txawv thiab cov chaw sib txawv.

(II) Cov Muaj Peev Xwm Tshwj Xeeb Ntau Yam

Ntxiv rau cov qauv kev hloov kho yoj txuas ntxiv hom nws- n} Tsis muaj qee qhov sib txawv nrog cov haujlwm tshwj xeeb. Piv txwv li, iodine zaus kom siv cov kab uas muaj zog sib xyaw kom ruaj khov, feem ntau siv rau lwm cov twj paj nruag thiab cov khoom siv; Acetylene zaus ...}}} Cov kauj xob xauv khoom tuaj yeem kaw qhov zaus ntawm tus qauv txheem hauv kev sib txuas lus kev sib txuas lus kho qhov muag; Ib qho ntxiv, lasers nruab nrog cov kev sib txuam fiber ntau tuaj yeem hloov kho kho qhov muag tawm rau ntau yam kev sim ua haujlwm thiab cov khoom siv ntau lawm. Cov kev ua haujlwm tshwj xeeb no ntxiv nthuav cov ntawv thov thiab yooj ntawm nws {}} n} n} n} n} nuers.

III. Cov ncauj lus ntxig thov cov chaw thov

(I) Kev tshawb fawb yooj yim

Cuam Tshuam Qhov Chaw: Ua tsaug rau nws cov kev qhia siab, 632.8nm nws -}} nem yog qhov chaw zoo tshaj plaws rau kev cuam tshuam. Hauv kev tshawb fawb physics, nws feem ntau siv los ntsuas kev tsis zoo me me, cov hlab ntsha, thiab cov khoom lag luam tawm. Piv txwv li, hauv cov khoom siv mechanics ua ntsuas kev ua tau zoo, hloov pauv kev cuam tshuam kom yog qhov tseeb ntawm cov khoom deformation ntawm cov ntaub ntawv nyob rau kev ntxhov siab; Hauv kev tshuaj xyuas zoo ntawm cov khoom siv kho kho kho kho qhov muag, kev cuam tshuam cuav tuaj yeem siv los kuaj seb cov tiaj tiaj thiab lub vojvoog ntawm curvature ua tau raws li qhov yuav tsum tau ua.

Physics Kuaj Xyuas Kev Qhia: Raws li kev sim ua ntej, nws -}} neb siv dav siv hauv University Diam tsev qhia. Nws tuaj yeem intuital qhia qhov kev ua kom zoo dua qub xws li grating diffraction,} {{2} {{2} {{2} Cov ntsiab lus tseem ceeb thiab cov qauv ntawm Waim Optics. Nyob rau tib lub sijhawm, vim nws qhov kev ua haujlwm yooj yim thiab kev nyab xeeb ntau, nws kuj haum rau cov khoom pib los xyaum txhais tes- ntawm kev txawj ntse.

(II) Kev Ntsuam Xyuas Kev Ntsuam Xyuas Thiab Kev Lag Luam

Precision Optical Elually: Lub sijhawm ua ke thiab commissioning of optical lub tshuab, meej cov txheej txheem ntawm ntau yam kev kho qhov muag 'txoj haujlwm yuav tsum muaj. Nyob rau lub sijhawm no, cov nqaj ncaj ncaj emitted los ntawm tus nws {}}}}} Tsis tau kho cov iav, thiab lwm cov khoom siv kom ntseeg tau tias qhov tseeb ntawm tag nrho cov kab ke.

Tawg lub teeb zog rau lub zog ntau dua kev txheeb xyuas hauv cov nus cytometry: Nyob rau hauv cov biomedical teb, ntws cytometry yog cov txheej txheem tseem ceeb rau kev txheeb xyuas ntawm tes thiab txheeb. Qhov chaw ruaj khov kho tau muab los ntawm tus nws - Tsis muaj kev faib tawm cov fluidescent hauv cell, thiab los ntawm kev faib tawm ntawm tes, morphology, thiab lwm yam, tuaj yeem tau txais. Qhov no yog qhov tseem ceeb tshaj plaws rau kev kawm cov yam ntxwv biological biological, kev kuaj mob, thiab kho kab mob.

Opacity Saib Xyuas Thiab Cov Khoom Noj Khoom Noj: Los ntawm kev siv lub zog ntawm kev siv lub teeb tom qab dhau los ntawm cov qauv, tiag}}} kev tshuaj xyuas cov qauv opacity tuaj yeem pom tau. Lub ntsiab cai no tau thov hauv kev lag luam ua khoom noj kom paub qhov txawv ntawm cov qhab nia sib txawv, xws li tshuaj ntsuam rau cov txiv hmab txiv ntoo lossis ntsuas cov nqaij zoo. Los ntawm cov tshuab tswj kev siv tshuab ua ke nrog kev ntsuas laser nrhiav tau, cov kab ua haujlwm tau zoo ntau lawm tuaj yeem ua tiav.

(III) Kev Kho Mob Ntaus

Intralascular irradiation kho rau cov kab mob plawv: Xyoo tsis ntev los no, tshawb fawb tau pom tias kev tawm tsam nrog cov phuam uas tsim nyog tuaj yeem txhawb cov ntshav ncig thiab txhim kho cov hlab tshuaj meabolic. Raws li cov ntsiab cai no, txoj kev kho mob iradiation tau maj mam thov hauv kev sim tshuaj xyuas rau qee yam kab mob plawv. Lub 632.8nm nws-}} nE laser ua ib qho uas xav tau lub teeb thiab biocompatibility.

Muaj peev xwm kev txhim kho ntawm tsis -} walapers cov khoom siv khozer: Dhau li ntawm kev kho ib ntus kev kho mob, tsis - Txoj Kev Yuam Kev Laser tau txais kev saib xyuas ntau dua. Tus nws - n} neb n} NEASER yuav tsum ua lub luag haujlwm tseem ceeb hauv thaj chaw no, piv txwv li, hauv kev kho cov kab mob ntawm daim tawv nqaij lossis txhawb nqa cov kab mob tawv nqaij lossis txhawb nqa cov qhov txhab. Tam sim no, kev tshawb fawb muaj feem xyuam kev nce qib nkaus, thiab ntau cov cuab yeej kho mob tshiab tuaj yeem tawm mus yav tom ntej.

(IV) Frontier Interdisciplinationary cov ntawv thov

Kev paub zoo txog kev xaiv hauv Raman spectroscopy: Raman scattering yog qhov tshwm sim tshwj xeeb tau pom tom qab roughening kev kho rau ntawm cov chaw hlau tshwj xeeb. Xaiv cov txiaj ntsig tsim nyog ua kom tiav yog qhov tseem ceeb rau tau txais siab- zoo Raman spectra. Lub 632.8nm nws-}} Tsis muaj qhov zoo tshaj plaws rau kev txhim kho kom tau txais kev txhim kho kom pom kev paub thiab daws teeb meem.

THEEM MODULATION Kev Ua Haujlwm Zoo Tshaj Plaws hauv Holographic Impression: Kev thau holographic yog cov txheej txheem uas sau txhua cov ntaub ntawv hais txog ib qho khoom, suav nrog cov amplitude thiab theem. Thaum siv tus nws {-}} ne}}}}}} nu laser rau Holaphy, li kev txhim kho kev ua kom zoo thiab sib piv. Qhov no yog qhov tseem ceeb tshaj plaws rau peb {- desensional tsim kho, micro {{} nano fillerication, thiab lwm thaj teb.

Anti -} jamming tsim rooj plaub ntawm Maritime Visual Kev Ntsuas Hluav Taws Xob: Hauv cov chaw ua haujlwm marine, tsoos pom kev pom kev yooj yim txoj kev yooj yim cuam tshuam los ntawm cov huab cua huab cua tsis zoo. Lub Maritime Vision System Tsim nrog tus nws -}}}}}}}} Kev Cuam Tshuam txawm nyob hauv qhov pom kev tsis pom kev xws li hnub los nag. Daim ntawv thov kev vam meej ntawm cov kab ke no ua rau muaj kev sib txawv ntawm nws {}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} ne} Tsis muaj laser nyob rau hauv cov xwm txheej tshwj xeeb.

Hauv cov ntsiab lus, tus 632.8nm helium - neon neon (nws - Nws muab cov txiaj ntsig zoo xws li tus nqi qis, yooj yim ntawm kev tiv thaiv, kev lag luam tseem ceeb, kev kho mob kev noj qab haus huv, thiab lwm yam nyob. Saib tom ntej, nrog kev txhim kho txuas ntxiv ntawm miniaturized ntim thev naus laus zis, portable nws- nuers yuav nrov dua; Meanwhile, kev sib tawg hauv zaus cov thev naus laus zis stability steelies yuav tsum nthuav nws cov khoom siv daim ntawv thov nyob rau hauv high {kawg}} metrology. Nws tuaj yeem yog cov khoom siv tau tias rau qee lub sijhawm los, 632.8nm nws}}}}}}} new} Tsis muaj cov kws tshawb nrhiav thiab cov kws tshawb fawb sib txawv.

Cov ntaub ntawv tiv toj:

Yog tias koj muaj tswv yim, xav tham nrog peb. Tsis hais qhov twg peb cov neeg yuav khoom yog thiab peb yuav tsum ua raws li peb lub hom phiaj los muab peb cov neeg siv khoom kom muaj txiaj ntsig zoo, tus nqi zoo tshaj plaws, thiab kev pabcuam zoo tshaj plaws.