Demystified: Microscopy Acceleration Technology
Hauv keeb kwm ntawm kev txhim kho cov cuab yeej niaj hnub no, kev siv tshuab microscopic tau txhim kho sai heev nrog rau kev nce qib ntawm tib neeg kev tshawb fawb thiab thev naus laus zis. Nrog rau kev tsim cov cuab yeej siv tshuab microscopic tshiab, kev tshawb fawb txog kev tshawb fawb thiab kev tsim cov khoom siv kuj tau raug thawb mus rau lub ntiaj teb me me uas tsis tau muaj dua. Atomic force microscopy tuaj yeem siv rau kev tshawb fawb teb, suav nrog cov ntaub ntawv polymer, cov khoom siv optoelectronic, nanomaterials, biological cov ntaub ntawv, thiab lwm yam. Tsis tas li ntawd, nws cov probes kuj tseem siv tau los ua cov cuab yeej rau kev tswj cov atoms lossis molecules, muab kev tshawb fawb dav dav thiab kev xav.
Raws li cov lus ceeb toom, Keith Swaber, tus kws kho mob ntawm Cornell University, tau siv txoj hauv kev ntsuas hauv nanoelectronics los tsim lub tshuab kuaj kab mob tunneling, uas tuaj yeem nqa cov duab ntawm ib tus neeg atoms ntawm qhov chaw, uas tsawg kawg yog sai dua li cov tshuab ntsuas tam sim no. 100 lub sij hawm sai dua. Lub tshuab ntsuas tunneling tshuab tuaj yeem siv lub peev xwm ntawm quantum tunneling lossis electron tunneling los ntawm obstacles los ntsuas qhov kev ncua deb ntawm rab koob-hom detector thiab ib tug conductive nto.
Los ntawm kev ntxiv ib qho ntxiv xov tooj cua zaus yoj qhov chaw thiab xa nthwv dej los ntawm ib qho yooj yim network mus rau hauv lub tshuab ntsuas qhov ntsuas qhov ntsuas, cov kws tshawb fawb pom tias lawv tuaj yeem siv cov cuab yeej ntawm nthwv dej los cuam tshuam mus rau qhov chaw nthwv dej txhawm rau txheeb xyuas qhov tsis kam ntawm qhov sib tshuam. Cov thev naus laus zis, hu ua reflectometer thev naus laus zis, siv cov txheej txheem cable raws li cov channel rau cov nthwv dej ntau zaus, thiab qhov ceev yuav tsis qeeb los ntawm lub peev xwm txwv ntawm cable. Thiab ib qho hluav taws xob me me yog siv thoob plaws cov qauv, txav lub ntsuas ntsuas tsuas yog ob peb lub angstroms saum cov qauv saum npoo.
Nws yuav tsum raug sau tseg tias qhov zoo tshaj plaws scanning tunneling microscope tuaj yeem sau cov ntaub ntawv sai npaum li cov khoom siv hluav taws xob tuaj yeem khaws cia los ntawm qhov av, ntawm tus nqi ntawm ib gigahertz, lossis bandwidth ntawm ib billion cycles ib ob. Tab sis ib tug raug scanning tunneling microscope yog txwv los ntawm lub readout Circuit Court lub peev xwm los yog lub zog cia, ua rau nws qeeb heev, ntawm qhov kev txiav txim ntawm 1 kilohertz los yog txawm tsawg.
Nws yog ib qho tsim nyog hais tias cov kws tshaj lij tau hais tias cov thev naus laus zis no tseem muaj cov ntawv thov kev cia siab ntawm kev tsim cov tshuab ntsuas atomic-scale. Nws tau ntseeg ruaj khov tias tom qab 10 xyoo, yuav muaj ntau lub xov tooj cua zaus scanning tunneling microscopes, thiab tib neeg tuaj yeem siv lawv los ua ntau yam kev sim zoo. Lub invention ntawm lub atomic force microscope tau muab cov kev tshawb fawb hauv zej zog uas tsis tau pom dua muaj peev xwm analytical, ua rau nws tsis yog npau suav los ntes thiab tswj cov atoms thiab molecules ntawm cov khoom siv.
