Micro-nano photonics galibi suna nazarin dokar hulɗa tsakanin haske da abu a sikelin micro da nano da aikace-aikacensa a cikin samar da haske, watsawa, tsari, ganowa da kuma ji. Na'urorin ƙananan raƙuman ruwa na Micro-nano photonics na iya inganta matakin haɗakar photon yadda ya kamata, kuma ana sa ran za su haɗa na'urorin photonic cikin ƙaramin guntu na gani kamar kwakwalwan lantarki. Plasmonics na saman Nano sabon fanni ne na micro-nano photonics, wanda galibi yana nazarin hulɗar tsakanin haske da abu a cikin tsarin ƙarfe. Yana da halaye na ƙaramin girma, babban gudu da kuma shawo kan iyakokin diffraction na gargajiya. Tsarin Nanoplasma-waveguide, wanda ke da kyawawan halayen haɓaka filin gida da tacewa, shine tushen matattarar nano, multiplexer na rarraba tsawon rai, maɓallin gani, laser da sauran na'urorin gani na micro-nano. Ƙananan ramuka na gani suna iyakance haske zuwa ƙananan yankuna kuma suna haɓaka hulɗar tsakanin haske da abu sosai. Saboda haka, ƙananan ramuka na gani tare da babban inganci hanya ce mai mahimmanci ta ji da ganowa mai ƙarfi.
WGM microcavity
A cikin 'yan shekarun nan, ƙananan ƙwayoyin cuta na gani sun jawo hankali sosai saboda babban ƙarfin aikace-aikacensa da mahimmancin kimiyya. Ƙananan ƙwayoyin cuta na gani galibi sun ƙunshi ƙananan ƙwayoyin cuta, ƙananan ƙwayoyin cuta, ƙananan ƙwayoyin cuta da sauran geometries. Wani nau'in resonator ne mai dogaro da morphologic. Raƙuman haske a cikin ƙananan ƙwayoyin cuta suna bayyana sosai a cikin mahaɗin microcavity, wanda ke haifar da yanayin resonation da ake kira yanayin gallery mai raɗaɗi (WGM). Idan aka kwatanta da sauran masu resonators na gani, ƙananan ƙwayoyin cuta suna da halayen ƙimar Q mai girma (fiye da 106), ƙarancin girma, ƙaramin girma da haɗin kai mai sauƙi, da sauransu, kuma an yi amfani da su ga babban ƙarfin ganewa na biochemical, ƙarancin laser na ƙasa da aikin da ba layi ba. Manufar bincikenmu ita ce nemo da nazarin halayen tsari daban-daban da siffofi daban-daban na ƙananan ƙwayoyin cuta, da kuma amfani da waɗannan sabbin halaye. Babban hanyoyin bincike sun haɗa da: binciken halayen gani na ƙananan ƙwayoyin cuta na WGM, binciken ƙira na ƙananan ƙwayoyin cuta, binciken aikace-aikacen ƙananan ƙwayoyin cuta, da sauransu.
Fahimtar ƙwayoyin cuta ta WGM
A cikin gwajin, an yi amfani da yanayin WGM mai tsari huɗu mai girma M1 (FIG. 1(a)) don auna ji. Idan aka kwatanta da yanayin ƙananan tsari, an inganta yanayin babban tsari sosai (FIG. 1(b)).
Hoto na 1. Yanayin amsawa (a) na ramin ƙananan capillary da kuma yanayin amsawar ma'aunin amsawa (b)
Matatar gani mai iya daidaitawa tare da ƙimar Q mai girma
Da farko, ana cire ƙaramin ramin silinda mai canzawa a hankali, sannan ana iya cimma daidaita tsawon tsayi ta hanyar motsa matsayin haɗin gwiwa ta hanyar injiniya bisa ga ƙa'idar girman siffar tun lokacin da aka yi amfani da raƙuman ruwa (Hoto na 2 (a)). An nuna aikin da za a iya gyarawa da kuma iyakar tacewa a Hoto na 2 (b) da (c). Bugu da ƙari, na'urar za ta iya gano na'urar hangen nesa tare da daidaiton ƙananan nanometer.
Hoto na 2. Zane mai tsari na matattarar gani mai iya gyarawa (a), aikin da za a iya gyarawa (b) da kuma yawan matattarar (c)
Mai kunna microfluidic drop resonator na WGM
a cikin guntun microfluidic, musamman ga digo a cikin mai (digo a cikin mai), saboda halayen tashin hankali na saman, don diamita na goma ko ma daruruwan microns, za a rataye shi a cikin mai, yana samar da kusan cikakkiyar ƙwallo. Ta hanyar inganta ma'aunin refractive, digo da kansa cikakken resonator ne mai siffar zagaye tare da ingancin ma'aunin fiye da 108. Hakanan yana guje wa matsalar ƙafewa a cikin mai. Ga manyan digo, za su "zauna" a bangon sama ko ƙasa saboda bambance-bambancen yawa. Wannan nau'in digo zai iya amfani da yanayin motsawa na gefe kawai.
Lokacin Saƙo: Oktoba-23-2023