Kare takaratidza zvedu ΠΈ . Nhasi unogona kutarisa kuOptical laboratory yeFaculty yeFizikisi uye Tekinoroji yeITMO University.
Mufananidzo: XNUMXD nanolithograph
Iyo Laboratory yeLow-Dimensional Quantum Materials ndeyeResearch Center yeNanophotonics uye Metamaterials () pahwaro .
Vashandi vayo vanobatikana zvivakwa : plasmons, excitons uye polaritons. Izvi zvidzidzo zvinozoita kuti zvikwanise kugadzira yakazara-yakazara optical uye quantum makomputa. Iyo rabhoritari yakakamurwa kuita akati wandei nzvimbo dzebasa dzinofukidza ese matanho ebasa ane yakaderera-dimensional quantum zvinhu: gadziriro yemuenzaniso, kugadzirwa kwavo, hunhu uye zvidzidzo zvemaziso.
Iyo yekutanga zone yakashongedzerwa nezvose zvinodiwa pakugadzirira sampuli .
Iyo ultrasonic cleaner inoisirwa kuti ivachenese, uye kuve nechokwadi chebasa rakachengeteka nemadoro, ine simba epoust hood yakashongedzerwa pano. Zvimwe zvekutsvagisa zvinopihwa kwatiri nemarabhoritari anoshanda muFinland, Singapore neDenmark.
Kuchenesa sampuli, BINDER FD Classic. Line drying cabinet inoiswa muimba. Zvinhu zvinodziya mukati maro zvinochengetedza tembiricha kubva pa10 kusvika ku300Β°C. Iyo ine USB interface yekuenderera mberi tembiricha yekutarisa panguva yekuyedza.
Vashandi vemurabhoritari vanoshandisawo kamuri iyi kuita bvunzo dzekushushikana uye kuchembera bvunzo pamasampuli. Kuedza kwakadaro kunodiwa kuti unzwisise maitiro emidziyo uye zvigadziriso mune mamwe mamiriro: akajairwa uye akanyanyisa.
A-dimensional-dimensional nanolithograph akaiswa muimba inotevera. Inobvumira kugadzirwa kwematatu-dimensional zvimiro mazana akati wandei nanometer muhukuru.
Nheyo yekushanda kwayo yakavakirwa pane chiitiko che maviri-photon polymerization. Chaizvoizvo, iprinta ye3D inoshandisa lasers kuumba chinhu kubva kumvura polymer. Iyo polymer inoomesa chete pane iyo laser beam inotariswa.
Mufananidzo: XNUMXD nanolithograph
Kusiyana neyakajairwa lithography matekiniki, ayo anoshandiswa kugadzira ma processor uye kushanda nematete akaturikidzana emidziyo, maviri-photon polymerization inobvumira kusikwa kweakaomesesa matatu-dimensional zvimiro. Semuenzaniso, seizvi:
Imba inotevera yerabhoritari inoshandiswa pakuongorora kwemaziso.
Kune tafura hombe yemaziso ingangoita mamita gumi kureba, izere nekuiswa kwakawanda. Zvinhu zvikuru zvekugadzwa kwega kwega ndeye radiation sources (laser uye mwenje), spectrometers uye microscopes. Imwe yemamicroscopes ine matatu optical channels panguva imwe chete - kumusoro, kurutivi uye pasi.
Inogona kushandiswa kuyera kwete chete kutapurirana uye kuratidzira spectra, asiwo kuparadzira. Iyo yekupedzisira inopa ruzivo rwakapfuma kwazvo nezve nanoobjects, semuenzaniso, spectral maitiro uye nemwaranzi mapatani e nanoantennas.
Mumufananidzo: mhedzisiro yekupararira kwechiedza pane silicon zvimedu
Midziyo yese iri patafura ine imwechete vibration kudzvanya system. Mwaranzi yelaser chero ipi zvayo inogona kutumirwa kune chero yemaziso masisitimu uye maikorosikopu uchishandisa magirazi mashoma uye kutsvagisa kunogona kuenderera mberi.
Iyo inoenderera-wave gasi laser ine yakanyanya kutetepa spectrum inoita kuti zvikwanise kuita zviedzo pa . Iyo laser beam inotariswa pamusoro peiyo sampuli, uye spectrum yechiedza chakapararira inorekodhwa ne spectrometer.
Mitsetse yakamanikana inoenderana neinelastic chiedza kupararira (ine shanduko yewavelength) inocherechedzwa mu spectra. Aya nhongonya anopa ruzivo nezve crystal chimiro chemuenzaniso, uye dzimwe nguva kunyangwe nezve kumisikidzwa yemamorekuru ega.
Kune zvakare femtosecond laser yakaiswa mukamuri. Iyo inokwanisa kugadzira ipfupi kwazvo (100 femtoseconds - imwe gumi-trillionth yesekondi) pulses yelaser radiation ine simba rakakura. Nekuda kweizvozvo, tinowana mukana wekudzidza nonlinear optical mhedzisiro: chizvarwa chekaviri mafrequency uye zvimwe zvakakosha zviitiko zvisingawanikwe pasi pemamiriro echisikigo.
Yedu cryostat inowanikwawo murabhoritari. Inobvumira kuyerwa kwemaziso neseti imwe chete yezvinyorwa, asi pakudziya kwakaderera - kusvika kunomwe Kelvin, iyo inenge yakaenzana ne -266 Β° C.
Mumamiriro ezvinhu akadaro, zviitiko zvakasiyana-siyana zvinogona kuonekwa, kunyanya, hurumende yekubatana kwakasimba pakati pechiedza uye nyaya, apo photon uye exciton (electron-hole pair) inogadzira chikamu chimwe chete - an exciton-polariton. Polaritons inobata chivimbiso chikuru muminda ye quantum computing uye zvishandiso zvine simba risiri remitsetse mhedzisiro.
Mumufananidzo: INTEGRA probe microscope
Mukamuri yekupedzisira yerabhoritari takaisa midziyo yedu yekuongorora - ΠΈ . Yekutanga inokutendera iwe kuti uwane mufananidzo wepamusoro pechinhu chine yakakwirira spatial resolution uye kudzidza kuumbwa, chimiro uye zvimwe zvimiro zvepasi pezvikamu zvechinhu chimwe nechimwe. Kuti aite izvi, anoaongorora nesimbi yakananga yemaerekitironi inokwidziridzwa nehigh voltage.
A scanning probe microscope inoita zvimwechete nekushandisa probe inoongorora pamusoro pesample. Muchiitiko ichi, zvinokwanisika kuwana panguva imwe chete ruzivo pamusoro pe "nyika" yemuenzaniso wepamusoro uye nezvezvivakwa zvayo zvemunharaunda, semuenzaniso, simba remagetsi uye magnetization.
Mufananidzo: scanning electron maikorosikopu S50 EDAX
Zviridzwa izvi zvinotibatsira kuratidza masampula ekuwedzera zvidzidzo zvemaziso.
Zvirongwa nezvirongwa
Imwe yemapurojekiti makuru erabhoritari ane hukama ne nyika dzakasanganiswa dzechiedza uye nyaya muhuwandu hwezvinhu-exciton-polaritons yatotaurwa pamusoro apa. A mega-rubatsiro kubva kuMinistry of Education uye Science yeRussian Federation yakazvipira kune iyi musoro. Iyo purojekiti inotungamirwa nemukuru wesainzi kubva kuYunivhesiti yeSheffield, Maurice Shkolnik. Basa rekuyedza purojekiti rinoitwa naAnton Samusev, uye chikamu chedzidziso chinotungamirwa naPurofesa weFaculty of Physics uye Technology Ivan Shelykh.
Vashandi vomurabhoritari vari kudzidzawo nzira dzekufambisa mashoko vachishandisa solitons. Solitons mafungu asina kukanganiswa nekupararira. Kutenda kune izvi, zviratidzo zvinoparidzirwa uchishandisa solitons "hazviparadzi" sezvazvinopararira, izvo zvinoita kuti zvikwanise kuwedzera zvose kukurumidza uye mararamiro ekufambisa.
Pakutanga kwe2018, masayendisiti kubva kuYunivhesiti yedu uye vatinoshanda navo kubva kuyunivhesiti muVladimir muenzaniso weiyo yakasimba-state terahertz laser. Iyo yakasarudzika yekusimudzira ndeyekuti terahertz radiation haina "kunonoka" nezvinhu zvakagadzirwa nematanda, mapurasitiki uye ceramics. Nekuda kweichi chivakwa, iyo laser ichashandiswa munzvimbo dzevatyairi uye mikwende yekutarisa nekukurumidza kutsvaga zvinhu zvesimbi. Imwe nzvimbo yekushandisa ndeye kudzoreredzwa kwezvinhu zvekare zvehunyanzvi. Iyo optical system ichabatsira kuwana mifananidzo yakavanzwa pasi pematanho epende kana ceramics.
Zvirongwa zvedu ndezvekushongedza marabhoritari nemidziyo mitsva yekuita tsvagiridzo yakaoma. Semuenzaniso, tenga tunable femtosecond laser, iyo inozowedzera zvakanyanya huwandu hwezvinhu zviri kudzidzwa. Izvi zvichabatsira nemabasa ane chekuita ne quantum machipisi echizvarwa chinotevera komputa masisitimu.
Iyo ITMO University inoshanda uye inorarama sei:
Source: www.habr.com