I-Wavelength encinci yeHlabathi-ye-QCL iQinisekise ukuPhatheka kwayo yonke i-Optical Gas Analyzer

I-HAMAMATSU, eJapan, nge-Agasti 25, 2021-I-Hamamatsu Photonics kunye ne-National Institute of Advanced Industrial Science kunye neTekhnoloji (AIST) eTokyo basebenzisane kwinkqubo yokujonga irhasi ebonakalayo, ephathekayo yokuqikelela ukuqhuma kwentaba-mlilo ngezinga eliphezulu lobuntununtunu. Ukongeza ekunikezeleni ngokuzinzileyo, ixesha elide ukubekwa kweliso kwiigesi zentaba-mlilo kufutshane nemingxuma yeentaba-mlilo, i-analyzer ephathekayo inokusetyenziselwa ukukhangela ukuvuza kwegesi eyityhefu kwizityalo zamachiza nakwimijelo yogutyulo nakwimilinganiselo yomoya.

Inkqubo iqulethe i-miniaturised, wavelength-sweptum cascade laser (QCL) ephuhliswe nguHamamatsu. Malunga ne-1 / 150th ubungakanani bee-QCLs zangaphambili, i-laser yeyona ndawo incinci yokutsalwa kwe-QCL emhlabeni. Inkqubo yokuqhuba kwenkqubo yokujonga igesi, ephuhliswe yi-AIST, iya kuvumela i-QCL encinci ukuba inyuswe ibe ngabahlaziyi abancinci, abaphathekayo abanokuqhutywa naphi na.
Ubuncinci be-wave ye-QCL encinci ye-QCL yi-1 / 150th kuphela ubungakanani be-QCLs yangaphambi kwexesha. Ngobubele beHamamatsu Photonics KK kunye noMbutho oMtsha woPhuhliso lweTekhnoloji yezoMbane (NEDO).
Esebenzisa iteknoloji ye-Microelectromechanical (MEMS) ye-Hamamatsu ekhoyo, abaphuhlisi bayilahle ngokutsha i-QCL's MEMS diffraction grating, bayinciphisa malunga ne-1 / 10th ubungakanani bokuzonwabisa okuqhelekileyo. Iqela lisebenzise umazibuthe omncinci owayecwangciselwe ukunciphisa indawo engeyomfuneko, kwaye wahlanganisa ngokuchanekileyo amanye amacandelo ngokuchanekileyo ukuya kwiiyunithi ze-0.1 μm. Imilinganiselo yangaphandle ye-QCL yi-13 × 30 × 13 mm (W × D × H).

Ii-QCL ze-Wavelength ezitshayelweyo zisebenzisa i-MEMS diffraction grating esasazekayo, ibonakalise, kwaye ikhuphe ukukhanya kwe-infrared ngelixa ihamba ngokukhawuleza kwamaza. I-wave ye-Hamamatsu etshayele i-QCL iyakulungiswa kwinqanaba lobude be-7 ukuya kwi-8 μm. Olu luhlu luthathwa ngokulula zii-SO2 kunye nee-H2S iigesi ezithathwa njengabaxeli besithuba sangaphambili sokuqhuma kwentaba-mlilo.

Ukufezekisa ubude obulungisiweyo, abaphandi basebenzise itekhnoloji yoyilo lwesixhobo esekwe kwimpembelelo ye-quantum. Uluhlu oluphuma ekukhanyeni kwento yeQCL, basebenzise uyilo oluchaseneyo olunqamleze ilizwe elingasentla.

Xa i-wavevel etshayisiweyo ye-QCL idityaniswe nenkqubo yedrive ephuhliswe yi-AIST, inokufikelela kwisantya sokutshayelwa kwamaza okufumana ukukhanya okuqhubekayo phakathi kwe-infrared light spectrum ngaphakathi kwe-20 ms. Ukufunyanwa kwesantya esiphezulu kwe-QCL kwimbonakalo iya kuqhuba uhlalutyo lweziganeko zethutyana ezitshintsha ngokukhawuleza ekuhambeni kwexesha. Isisombululo esibonakalayo se-QCL simalunga ne-15 nm, kwaye esona siphumo siphezulu siphezulu malunga ne-150 mW.

Okwangoku, uninzi lwabahlalutyi olusetyenziselwa ukukhangela kunye nokulinganisa iigesi zentaba-mlilo ngexesha lokwenyani zineenzwa ze-electrochemical sensors. Ii-electrode kwezi sensors- kunye nokusebenza kwe-analyzer-kuyehla ngokukhawuleza, ngenxa yokuvezwa rhoqo kwerhasi enetyhefu. Abahlalutyi begesi bonke-abasebenzisa ukukhanya kobomi obude kwaye bafuna ukugcinwa okuncinci, kodwa umthombo wokukhanya we-optical ungathatha indawo eninzi. Ubungakanani baba bahlalutyi bubenza kubenzima ukufakela kufutshane nomngxunya wentaba-mlilo.

Inkqubo yokujonga irhasi yentaba-mlilo elandelayo, exhotyiswe nge-QCL encinci, iya kubonelela ngeentaba-mlilo ngeyunithi ye-all-optical, compact, portable ephethe ubuntununtunu obuphezulu kunye nokugcinwa ngokulula. Abaphandi baseHamamatsu kunye noogxa babo kwi-AIST kunye noMbutho oMtsha woPhuhliso lweTekhnoloji yezoMbane (NEDO), exhasa le projekthi, baya kuqhubeka nokuphanda iindlela zokwandisa uvakalelo lomhlalutyi kunye nokunciphisa ulondolozo.

Iqela licwangcisa ukujongwa kwezinto ezininzi ukuvavanya kunye nokubonisa i-analyzer ephathekayo. Iimveliso ezisebenzisa i-wavevel-swept QCL kunye nokuqhuba iisekethe kunye neHamamatsu photodetectors zicwangciselwe ukukhutshwa ngo-2022.REAS_Hamamatsu_World_s_Smallst_Wavelength_Swept_QCL


Ixesha Post: Aug-27-2021


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