Micro-nano photonics inonyanya kudzidza mutemo wekudyidzana pakati pechiedza nezvinhu pachiyero che micro ne nano uye kushandiswa kwacho mukugadzira chiedza, kutumira, kutonga, kuona uye kunzwa. Midziyo ye micro-nano photonics sub-wavelength inogona kuvandudza mwero wekubatanidzwa kwe photon, uye inotarisirwa kubatanidza michina ye photonic mu chip diki ye optical senge ma electronic chips. Nano-surface plasmonics inzvimbo itsva ye micro-nano photonics, iyo inonyanya kudzidza kudyidzana pakati pechiedza nezvinhu mu nanostructures dzesimbi. Ine hunhu hwehukuru hudiki, kumhanya kwakanyanya uye kukunda muganho we diffraction wekare. Maumbirwo e Nanoplasma-waveguide, ane hunhu hwakanaka hwekuvandudza munda uye resonance filtering, ndiyo hwaro hwe nano-filter, wavelength division multiplexer, optical switch, laser nezvimwe zvishandiso zve micro-nano optical. Optical microcavities inoganhurira chiedza kunzvimbo diki uye inowedzera zvakanyanya kudyidzana pakati pechiedza nezvinhu. Naizvozvo, optical microcavity ine high quality factor inzira yakakosha ye high sensitivity sensitivity uye kuona.
WGM microcavity
Mumakore achangopfuura, optical microcavity yakakwezva kutariswa kukuru nekuda kwekugona kwayo kukuru kushandiswa uye kukosha kwesainzi. Optical microcavity inonyanya kuve ne microsphere, microcolumn, microring nedzimwe geometries. Imhando ye morphologic dependent optical resonator. Mafungu echiedza muma microcavities anoratidzwa zvizere pa microcavity interface, zvichikonzera resonance mode inonzi whispering gallery mode (WGM). Kana ichienzaniswa nedzimwe optical resonators, microresonators dzine hunhu hwe Q value yakakwira (inopfuura 106), low mode volume, small size uye easy integration, nezvimwewo, uye dzakashandiswa pa high-sensitivity biochemical sensitivity, ultra-low threshold laser uye nonlinear action. Chinangwa chedu chekutsvagisa ndechekuwana nekudzidza hunhu hwemaumbirwo akasiyana uye ma morphology akasiyana ema microcavities, uye kushandisa hunhu hutsva uhu. Nzira huru dzekutsvagisa dzinosanganisira: optical characteristics research ye WGM microcavity, kugadzira microcavity research, application research ye microcavity, nezvimwewo.
Kunzwa kwemakemikari emudumbu mudiki weWGM
Mukuyedza, nzira yemhando ye "four-order high-order WGM mode M1" (Mufananidzo 1(a)) yakashandiswa pakuyera kungwara. Kana tichienzanisa ne "low-order mode", kungwara kwe "high-order mode" kwakavandudzika zvikuru (Mufananidzo 1(b)).
Mufananidzo 1. Resonance mode (a) ye microcapillary cavity uye refractive index sensitivity yayo inoenderana (b)
Sefa ye optical inogadziriswa ine Q yakakosha zvakanyanya
Kutanga, microcavity yecylindrical inochinja zvishoma nezvishoma inoburitswa, uye ipapo kugadziriswa kwewavelength kunogona kuitwa nekufambisa nzvimbo yekubatanidza nemakanika zvichibva panheyo yehukuru hwechimiro kubva pawavelength ye resonant (Mufananidzo 2 (a)). Kugadziriswa kwekushanda uye bandwidth yekusefa zvinoratidzwa muMufananidzo 2 (b) na (c). Pamusoro pezvo, mudziyo unogona kuona optical displacement sensing ne sub-nanometer accuracy.
Mufananidzo 2. Dhiyagiramu yechirongwa chefirita inogadziriswa (a), mashandiro anogadziriswa (b) uye bandwidth yekusefa (c)
WGM microfluidic drop resonator
Mu microfluidic chip, kunyanya yedonhwe riri mumafuta (donhwe riri mumafuta), nekuda kwehunhu hwekumanikidzwa kwepamusoro, nekuda kwehukuru hwemakumi kana kunyange mazana ema microns, richasungirirwa mumafuta, zvichiita bhora rakakwana. Kuburikidza nekuvandudza refractive index, donhwe pacharo idenderedzwa rakakwana rine hunhu hwepamusoro hunopfuura 108. Rinodzivirirawo dambudziko remvura inobuda mumafuta. Kune madonhwe akakura, "anogara" pamadziro ekumusoro kana ezasi nekuda kwekusiyana kwehuwandu. Rudzi urwu rwedonhwe runogona kushandisa lateral excitation mode chete.
Nguva yekutumira: Gumiguru-23-2023