Polarization electro-opticAna samun iko ta hanyar rubutun Laser na femtosecond da na'urar kristal na ruwa
Masu bincike a Jamus sun ɓullo da wata sabuwar hanya ta sarrafa siginar gani ta hanyar haɗa rubutun Laser na femtosecond da crystal ruwa.na'ura mai aiki da karfin ruwa na lantarki. Ta hanyar shigar da Layer crystal Layer a cikin jagorar wave, ana gane ikon sarrafa wutar lantarki na yanayin polarization na katako. Fasaha tana buɗe sabbin damar gabaɗaya don na'urorin tushen guntu da hadaddun da'irori na photonic waɗanda aka yi ta amfani da fasahar rubutun Laser na femtosecond. Ƙungiyar binciken ta yi cikakken bayani game da yadda suka yi faranti mai ɗorewa a cikin jagororin igiyar ruwa na silicon. Lokacin da aka yi amfani da irin ƙarfin lantarki a kan kristal ruwa, ƙwayoyin kristal na ruwa suna juyawa, wanda ke canza yanayin polarization na hasken da ake watsawa a cikin waveguide. A cikin gwaje-gwajen da aka gudanar, masu binciken sun sami nasarar daidaita yanayin daɗaɗɗen haske a cikin tsayin raƙuman ruwa daban-daban guda biyu (Hoto na 1).
Haɗa mahimman fasahohi guda biyu don cimma sabbin ci gaba a cikin na'urorin haɗe-haɗe na photonic na 3D
Ƙarfin laser na femtosecond don rubuta daidaitaccen jagorar raƙuman ruwa a cikin kayan, maimakon a saman kawai, yana sa su zama fasaha mai ban sha'awa don ƙara yawan adadin raƙuman ruwa akan guntu ɗaya. Fasaha tana aiki ta hanyar mai da hankali kan katako mai ƙarfi na Laser a cikin wani abu mai haske. Lokacin da ƙarfin hasken ya kai wani matakin, katako yana canza kaddarorin kayan a wurin aikace-aikacensa, kamar alkalami mai daidaiton micron.
Ƙungiyar binciken ta haɗu da dabarun photon guda biyu don haɗa Layer na lu'ulu'u na ruwa a cikin jagorar wave. Yayin da katako ke tafiya ta hanyar jagorar igiyar ruwa kuma ta cikin crystal ruwa, lokaci da polarization na katako suna canzawa da zarar an yi amfani da filin lantarki. Bayan haka, katakon da aka daidaita zai ci gaba da yaduwa ta hanyar kashi na biyu na jagoran raƙuman ruwa, don haka cimma nasarar watsa siginar gani tare da halayen daidaitawa. Wannan matasan fasahar hada da biyu fasahar sa abũbuwan amfãni daga duka biyu a cikin wannan na'urar: a daya hannun, da high yawa na haske maida hankali kawo game da waveguide sakamako, da kuma a daya hannun, high daidaitawa na ruwa crystal. Wannan binciken ya buɗe sababbin hanyoyin da za a yi amfani da kaddarorin lu'ulu'u na ruwa don shigar da raƙuman ruwa a cikin jimlar yawan na'urori kamarmasu daidaitawadominna'urorin daukar hoto.
Hoto 1 Masu binciken sun shigar da yadudduka na kristal ruwa a cikin jagororin raƙuman ruwa waɗanda aka kirkira ta hanyar rubutun laser kai tsaye, kuma ana iya amfani da na'urar haɗaɗɗiyar da aka samu don canza yanayin hasken da ke wucewa ta cikin jagororin raƙuman ruwa.
Aikace-aikace da fa'idodin kristal na ruwa a cikin ƙirar laser femtosecond laser waveguide modulation
Ko da yakena gani daidaitawaa cikin femtosecond Laser rubutun waveguides an samu a baya da farko ta hanyar amfani da dumama gida zuwa jagororin igiyar ruwa, a cikin wannan binciken, ana sarrafa polarization kai tsaye ta amfani da lu'ulu'u na ruwa. "Tsarin mu yana da fa'idodi da yawa: ƙananan amfani da wutar lantarki, ikon aiwatar da raƙuman raƙuman ruwa da kansa, da kuma rage tsangwama tsakanin madaidaicin raƙuman ruwa," in ji masu binciken. Don gwada ingancin na'urar, ƙungiyar ta allurar Laser a cikin jagorar wave tare da daidaita hasken ta hanyar bambanta ƙarfin lantarki da ake amfani da shi a kan Layer crystal ruwa. Canje-canje na polarization da aka lura a fitarwa sun yi daidai da tsammanin hasashen. Masu binciken sun kuma gano cewa bayan an haɗa kristal ɗin ruwa tare da waveguide, halayen gyare-gyare na kristal ɗin ruwa ya kasance ba canzawa. Masu binciken sun jaddada cewa binciken hujja ne kawai, don haka akwai sauran aiki da yawa kafin a yi amfani da fasahar a aikace. Misali, na'urori na yanzu suna daidaita duk jagorar raƙuman ruwa iri ɗaya, don haka ƙungiyar tana aiki don samun ikon sarrafa mai zaman kansa na kowane jagorar igiyar ruwa.
Lokacin aikawa: Mayu-14-2024