Koj Puas Paub Cov Ntawv Thov Kev Lag Luam Ntawm DPSS Lasers?(Part 3)

DPSS Solid-State Lasersyog cov khoom siv laser ua haujlwm siab, lub cim tshiab ntawm cov khoom siv lub xeev laser nrog lub neej ntev, kev siv hluav taws xob tsawg, kev ruaj ntseg siab, siab teeb liab-rau-suab nrov piv, siab beam zoo, thiab tuaj yeem ua rau me me thiab lwm yam zoo.

5. Quantum technology

Qhov kev tshwm sim ntawm quantum thev naus laus zis tau cog lus tias yuav muaj kev txhim kho tseem ceeb hauv ntau yam xws li kev ntsuas ntsuas, cybersecurity, thiab suav. Muaj ntau lub koom haum uas tso siab rau lub moos atomic los ntsuas lub sijhawm kom raug tshaj plaws, thiab muaj kev txav loj heev los nqa quantum gravimeters los ntawm lub chaw kuaj mob mus rau thaj chaw los saib xyuas qhov ntws ntawm magma hauv cov kaus mom dej khov thiab cov roob hluav taws. Cov tuam txhab tshawb nrhiav roj tau pom muaj qhov xau hauv ntau txhiab mais ntawm cov kav dej hauv qab hiav txwv uas kim heev rau kev lag luam. GPS tam sim no siv txhua hnub hauv tsheb, xov tooj ntawm tes, lossis tsis ntev los no hauv iot smart devices. Tab sis yuav ua li cas yog tias koj nkag mus rau qhov ntev ntev, lossis xav khawb tob hauv av? Cov thev naus laus zis tam sim no tsis muaj qhov tseeb uas xav tau los pab koj taug kev hauv qhov xwm txheej no, tab sis "Tshaj Tawm, Kev Tshawb Fawb, thiab Sijhawm" (PNT luv luv) yog ib qho ntawm cov thev naus laus zis tseem ceeb tau tsim los ua quantum thev naus laus zis kev tshawb fawb nce qib.

Quantum thev naus laus zis tsom rau kev siv cov khoom meej thiab ruaj khov lossis cov atoms, thiab kev nkag siab txog cov khoom ntawm cov atoms no pab peb txhim kho qhov tseeb ntawm peb qhov ntsuas ntawm lub sijhawm thiab qhov chaw. Txhawm rau kom muaj peev xwm cuam tshuam nrog cov atoms, lawv thawj zaug yuav tsum tau ua kom qeeb lossis "txias" txhawm rau tshuaj xyuas lawv kom huv si. Rau qhov txias atoms thiab tshuaj xyuas lawv, siv cov teeb pom kev zoo sib xws, xws li diode-pumped solid-state (DPSS) lasers. Nyob rau hauv quantum daim ntaub ntawv, qhov nqaim ntawm linewidth ntawm lub laser, qhov zoo dua lub teeb liab xav tau los ntawm lub atom. Nws tseem yog ib qho tseem ceeb uas yuav tau xaiv lub wavelength cuam tshuam nrog lub atom kom ntes tau. Nrog rau kev txhim kho thiab miniaturization ntawm lub moos kho qhov muag, GPS qhov tseeb hauv qab qib millimeter tuaj yeem ua tiav. Vim yog qhov tseeb ntawm cov cuab yeej no, lawv kuj tseem yuav tsum tau ua tus kheej, tsis tas yuav muaj kev sib txuas lus satellite txuas ntxiv. Quantum sensors yog lwm ceg ntawm QT daim ntawv thov uas muaj peev xwm los txhim kho lub ntiajteb txawj nqus thiab magnetometry tam sim no, ob qho tib si tuaj yeem siv los soj ntsuam cov qauv hauv av lossis txawm pom cov khoom hauv dej hiav txwv tob.

6. Fluorescence

Photoluminescence yog ib lo lus dav dav uas npog ob qho tib si fluorescence thiab phosphorescence. Nyob rau hauv qhov kev txiav txim siab nruj tshaj plaws, fluorescence yog lub teeb tawm los ntawm excitation mus rau ib qho ntawm cov singlet xeev nyob rau hauv cov khoom - feem ntau yog ceev heev emission tom qab excitation - thaum phosphorescence yog lub teeb emitted los ntawm lub triplet xeev - ua rau qeeb qeeb thiab qeeb lub teeb emission.

Photoluminescence yog ib daim ntawv ntawm luminescence - lub emission ntawm lub teeb los ntawm cov khoom tshwm sim los ntawm absorbing zog - uas nyob rau hauv lem absorbs lub teeb lub zog, ua rau cov khoom emit ntawm txawv wavelengths.

Cov ntsiab lus no feem ntau tsis yog siv rau hauv txoj kev tshwj xeeb no, thiab feem ntau fluorescence tuaj yeem xav tias yog cov txheej txheem luminescence sai tom qab excitation, feem ntau ntawm lossis qis dua qib nanosecond, sib piv rau qeeb phosphorescence, uas feem ntau xav txog ntawm lossis siab dua qib microsecond. . Thaum lub teeb pom kev dav dav tuaj yeem tsim tau ntau qhov photoluminescence, ntau daim ntawv thov yuav tsum muaj qhov ua kom pom tseeb thiab qhov tseeb, xws li confocal microscopy, crystal defect inspection, lossis dynamic mixs ntawm fluorescent dyes thiab fluorophores.

Ntau daim ntawv thov sib xyaw ua ke fluorescence nrog rau lwm yam kev ntsuas, xws li Raman, qhov chaw muaj peev xwm ntawm ob qho tib si kev siv tib yam excitation qhov ua kom yooj yim rau kev sib koom ua ke thiab kev txheeb xyuas cov ntaub ntawv. Ib qho piv txwv zoo yog kev tsim hluav taws xob hnub ci thiab kev tshawb fawb, qhov twg ob txoj kev siv los txheeb xyuas qhov chaw zoo heev - piv txwv li, fluorescence los xyuas cov khoom siv hauv lub neej xws li cov neeg nqa khoom lub neej lossis kev ua haujlwm, thiab Raman microscopy los txiav txim siab qhov sib xws.

7. Optical tweezers

Kuj tseem hu ua optical manipulation lossis optical capture, optical tweezers yog cov txheej txheem uas tso cai rau siv cov lasers tsom mus ntes thiab txav me me. Thaum lub laser tsom rau ntawm qhov particle, nws dhau qhov kev hloov pauv ntawm qhov ntsuas qhov taw qhia thiab hloov me ntsis nws cov kev taw qhia ntawm kev mus ncig, txav mus raws qhov gradient ntawm lub zog hluav taws xob. Qhov no ua rau lub zog sib txawv ntawm cov khoom, thiab yog tias cov khoom me me dua lub nqaj nws tus kheej, ua rau nws "raug" nyob rau hauv nruab nrab ntawm lub duav, qhov twg lub zog hluav taws xob loj tshaj plaws.

Qhov no tau ua pov thawj tias yog ib qho cuab yeej siv tau zoo hauv ntau qhov chaw. Txhua yam los ntawm ib tus neeg atoms mus rau cov tshuab me me, thiab cov hlwb lom tau raug siv los siv cov thev naus laus zis no. Feem ntau cov qauv tshuaj lom neeg tsis raug puas tsuaj los ntawm NIR hluav taws xob (xws li 1064 nm). Raws li qhov tshwm sim, cov kws tshawb fawb tam sim no tuaj yeem yooj yim cais tus kheej cov kab mob thiab cov kab mob rau kev kawm yam tsis muaj kev cuam tshuam rau lawv. Tus yuam sij rau cov thev naus laus zis no yog kom tau txais "kev tuav ruaj khov" ntawm cov khoom, yog lub zog zoo thiab taw qhia kev ruaj ntseg, nrog rau cov kab teeb pom kev zoo, thiab lub suab qis.

8. Diam duab etching

Lithography yog kev hloov ntawm tus qauv tsim rau ib qho chaw tiaj tus, ncaj qha lossis los ntawm qhov nruab nrab nruab nrab - tsis suav nrog thaj chaw saum npoo uas tsis xav tau. Nyob rau hauv photomask lithography, tus tsim yog qauv rau ntawm lub substrate thiab ib tug laser yog siv los nthuav tawm cov qauv, tso cai rau cov ntaub ntawv deposited yuav tsum tau etched tam sim ntawd nyob rau hauv kev npaj rau kev ua ntxiv. Txoj kev lithography no yog siv dav hauv kev tsim khoom loj ntawm semiconductor chips.

Lub peev xwm los tsim cov duab ntse ntawm cov yam ntxwv me me rau ntawm lub nti yog txwv los ntawm lub wavelength ntawm lub teeb siv. Cov cuab yeej lithography tam sim no siv qhov sib sib zog nqus ultraviolet (DUV) lub teeb, thiab cov wavelengths no yuav txuas ntxiv mus rau qhov tob ultraviolet (193 nm), nqus ultraviolet (157 nm thiab 122 nm), thiab deb ultraviolet (47 nm thiab 13). nm) yav tom ntej. Rau IC, MEMS, thiab biomedical kev lag luam, qhov twg qhov kev thov rau ntau yam ntawm cov nta thiab cov substrate loj hlob tuaj, cov khoom siv thiab cov kev hloov tsim tsis tu ncua ua rau tus nqi ntawm kev tsim cov kev daws teeb meem ntawm cov ntim qis. Tsoos photomask (photomask) -based lithography cov kev daws teeb meem tsis yog kev lag luam lossis siv tau rau ntau ntawm cov ntawv thov no, qhov twg tus nqi thiab lub sijhawm yuav tsum tsim thiab tsim ntau lub npog ntsej muag tuaj yeem ntxiv tau sai.

Txawm li cas los xij, daim ntawv thov lithography tsis muaj qhov ncauj qhov ntswg tsis cuam tshuam los ntawm qhov luv luv ultraviolet wavelength yuav tsum, es tsis txhob siv lasers hauv xiav thiab ultraviolet ntau yam. Nyob rau hauv maskless lithography, lub laser tsim microns thiab nanostructures ncaj qha rau saum npoo ntawm cov khoom siv photosensitive. Txoj kev lithography dav dav no tsis tso siab rau cov khoom siv npog ntsej muag thiab tuaj yeem hloov kho qhov teeb meem sai. Raws li qhov tshwm sim, kev tsim kho sai thiab kev txhim kho tau yooj yim dua, nrog rau qhov zoo ntawm kev tsim kom yooj yim dua thaum tswj hwm thaj chaw loj (xws li 300 mm semiconductor wafers, vaj huam sib luag tiaj tus, lossis PCBS).

Txhawm rau ua kom tau raws li qhov xav tau ntawm kev tsim khoom sai, maskless lithography lasers muaj cov yam ntxwv zoo ib yam li cov siv hauv photomask daim ntaub ntawv:

Qhov chaw nthwv dej txuas ntxiv nrog lub zog mus sij hawm ntev thiab kev ruaj ntseg wavelength thiab txoj kab nqaim dav txhais tau tias tsis tshua muaj kev hloov pauv hauv daim npog kos npe.

Lub neej ntev kev ruaj ntseg nrog me me kom tsis muaj kev saib xyuas lossis cuam tshuam rau kev tsim khoom yog qhov tseem ceeb rau ob qho tib si kev siv.

DPSS lasers nrog ultra-ruaj khov nqaim linewidth, wavelength stability, thiab lub zog ruaj khov yog zoo haum rau ob txoj kev lithography.

Cov ntaub ntawv tiv tauj:

Yog tias koj muaj lus nug, thov hu rau peb. Txawm peb cov neeg muas zaub nyob qhov twg thiab peb cov kev xav tau yog dab tsi, peb yuav ua raws li peb lub hom phiaj los muab peb cov neeg siv khoom zoo, tus nqi qis, thiab kev pabcuam zoo tshaj plaws.