I-HAMAMATSU, Japan, Agasti 25, 2021 - I-Hamamatsu Photonics kanye ne-National Institute of Advanced Industrial Science and Technology (AIST) eTokyo babambisene ohlelweni lokuqapha igesi olunokubona konke, oluphathekayo ukubikezela ukuqhuma kwentaba-mlilo ngezinga eliphakeme lokuzwela. Ngaphezu kokunikeza ukuqapha okuzinzile, okuhlala isikhathi eside kwamagesi wentaba-mlilo eduze kwemigodi yentaba-mlilo, i-analyzer ephathekayo nayo ingasetshenziselwa ukuthola ukuvuza kwegesi enobuthi ezitshalweni zamakhemikhali nakumapayipi endle nakwezilinganiso zomkhathi.

Uhlelo luqukethe i-miniaturized, wavelength-swept quantum cascade laser (QCL) eyenziwe nguHamamatsu. Cishe ngo-1 / 150th ubukhulu bama-QCL wangaphambilini, i-laser yi-QCL encane kunazo zonke emhlabeni. Uhlelo lokushayela lohlelo lokuqapha igesi, olwenziwe yi-AIST, luzovumela i-QCL encane ukuthi ibekwe ezihlaziyini ezingasindi, eziphathekayo ezingathwalwa noma yikuphi.
I-QCL encane kunazo zonke emhlabeni eshaywe yi-1 / 150th kuphela ubukhulu bama-QCL asezingeni elidlule. Ngokuzithoba kweHamamatsu Photonics KK neNew Energy and Industrial Technology Development Organisation (NEDO).
Besebenzisa ubuchwepheshe obukhona be-microelectromechanical system (MEMS) bobuchwepheshe obukhona bukaHamamatsu, abathuthukisi baphinde baklama kabusha i-QCL's MEMS diffraction grating, bayinciphisa yaba ngu-1 / 10th ubukhulu bosayizi ojwayelekile. Ithimba libuye lasebenzisa uzibuthe omncane obuhlelwe ukunciphisa isikhala esingadingekile, futhi waqoqa ngokunembile ezinye izinto ngokunemba kwehlela kumayunithi we-0.1 μm. Ubukhulu bangaphandle be-QCL bungu-13 × 30 × 13 mm (W × D × H).

Ama-QCL we-Wavelength asebenzisa i-MEMS diffraction grating ehlakazeka, ibonakalise, futhi ikhiphe ukukhanya okuphakathi kwe-infrared ngenkathi isusa ngokushesha ubude be-wavelength. I-QCL eshaywe ngamandla kaHamamatsu iyalungiswa ebangeni lobude be-7 kuye ku-8 μm. Lobubanzi bumunceka kalula ngamagesi e-SO2 kanye ne-H2S athathwa njengabikezeli bokuqala bokuqhuma kwentaba-mlilo.

Ukufeza ubude obulungisekayo, abacwaningi basebenzise ubuchwepheshe bokwakha idivayisi obususelwe kumphumela we-quantum. Ngolwelwesi olukhipha ukukhanya lwento ye-QCL, basebenzise i-anti-crossed double-upper state design.

Lapho i-wavelength-swept QCL ihlanganiswa nohlelo lwe-drive olwenziwe yi-AIST, ingafinyelela isivinini sokushanela samaza esithola ukukhanya okuqhubekayo okuphakathi nendawo kwe-infrared ngaphakathi kwe-20 ms. Ukutholwa kwe-QCL ngejubane eliphezulu kwe-spectrum kuzosiza ekuhlaziyweni kwezimo zesikhashana ezishintsha ngokushesha ngokuhamba kwesikhathi. Isixazululo se-QCL se-spectral silinganiselwa ku-15 nm, futhi umphumela waso ophakeme kakhulu cishe u-150 mW.

Njengamanje, abahlaziyi abaningi abasetshenziselwa ukuthola nokukala amagesi wentaba-mlilo ngesikhathi sangempela banezinzwa ze-electrochemical. Ama-electrode akulezi zinzwa - nokusebenza kwe-analyzer - konakala ngokushesha, ngenxa yokuchayeka njalo kwigesi enobuthi. Ama-all-optical gas analyzers asebenzisa umthombo wokukhanya wempilo ende futhi adinga ukunakekelwa okuncane, kepha umthombo wokukhanya we-optical ungathatha isikhala esiningi. Ubukhulu balaba bahlaziyi kubenza kube nzima ukufaka eduze kwezintaba-mlilo.

Uhlelo lokuqapha igesi lwentaba-mlilo olulandelayo, olufakelwe i-QCL elincane elishaywe ngamandla, luzohlinzeka izazi zentaba-mlilo ngeyunithi enezinto zonke, ezihlangene, neziphathekayo ezinokuzwela okuphezulu nokugcinwa kulula. Abaphenyi baseHamamatsu kanye nozakwabo e-AIST naseNew Energy and Industrial Technology Development Organisation (NEDO), abeseke lo msebenzi, bazoqhubeka nokuphenya izindlela zokwandisa ukuzwela komhlaziyi nokunciphisa ukunakekelwa.

Ithimba lihlela ukubonwa kwezinto eziningi ukuhlola nokukhombisa i-analyzer ephathekayo. Imikhiqizo esebenzisa i-wavelength eshanele i-QCL namasekhethi wokushayela ndawonye namaHamodats photodetectors kuhlelwe ukukhishwa ngo-2022.