HAMAMATSU, Japan, Ogasiti 25, 2021 - Hamamatsu Photonics ndi National Institute of Advanced Industrial Science and Technology (AIST) ku Tokyo adalumikizana ndi makina owunikira, osavuta kunyamula mpweya polosera za kuphulika kwa mapiri ndi chidwi chachikulu. Kuphatikiza pakupereka kuwunika kwanthawi yayitali kwa mpweya waphulika pafupi ndi zigwa zophulika, chowunikira chotheka kunyamula chitha kugwiritsidwanso ntchito kuzindikira kuphulika kwa gasi wa poizoni m'makina opangira mankhwala ndi zimbudzi komanso muyeso wamlengalenga.

Njirayi ili ndi miniaturized, wavelength-swept quantum cascade laser (QCL) yopangidwa ndi Hamamatsu. Pafupifupi 1 / 150th kukula kwa ma QCL am'mbuyomu, laser ndiye QCL yaying'ono kwambiri padziko lonse lapansi. Makina oyendetsa makina owunikira gasi, opangidwa ndi AIST, amalola kuti QCL yaying'ono ikhale yoyeserera, yosavuta kunyamula yomwe inganyamule kulikonse.
Gulu laling'ono kwambiri padziko lonse lapansi la QCL ndi 1 / 150th kukula kwa ma QCL am'mbuyomu. Mwachilolezo cha Hamamatsu Photonics KK ndi New Energy and Industrial Technology Development Organisation (NEDO).
Pogwiritsa ntchito ukadaulo wa Hamamatsu wa microelectromechanical system (MEMS) omwe adalipo, opanga adasinthiratu grating ya QCL ya MEMS, ndikuchepetsa pafupifupi 1 / 10th kukula kwa zisangalalo wamba. Gululi lidagwiritsanso ntchito maginito ang'onoang'ono omwe adakonzedwa kuti achepetse malo osafunikira, ndipo adasonkhanitsa zigawo zina molondola mpaka ma unit a 0.1 μm. Makulidwe akunja a QCL ndi 13 × 30 × 13 mm (W × D × H).

Ma QCL a ma wavelength amagwiritsa ntchito MEMS diffraction grating yomwe imabalalitsa, kuwunikira, komanso kutulutsa kuwala kwapakatikati pomwe ikusintha mawonekedwe ake. Mafunde a Hamamatsu omwe asunthira QCL amatha kusintha pakati pa 7 mpaka 8 μm. Mtunduwu umatengeka mosavuta ndi mpweya wa SO2 ndi H2S omwe amadziwika kuti ndi olosera zam'mbuyomu za kuphulika kwa mapiri.

Kuti akwaniritse kutalika kwa kutalika kwake, ofufuzawo adagwiritsa ntchito ukadaulo wopanga zida zomwe zimadalira kuchuluka kwa kuchuluka kwake. Pazosanjikiza kowala kwa gawo la QCL, adagwiritsa ntchito mapangidwe odana ndi kuwoloka kwapakati-apamwamba.

Pamene QCL yosesa mawonekedwe ikaphatikizidwa ndi makina oyendetsedwa ndi AIST, imatha kukwaniritsa liwiro lokulira lomwe limapeza kuwala kwapakatikati mwa infuraredi mkati mwa 20 ms. Kufulumira kwa QCL kwa sipekitiramu kudzathandizira kuwunika kwa zinthu zosakhalitsa zomwe zimasintha mofulumira pakapita nthawi. Kusintha kwa mawonekedwe a QCL ndi pafupifupi 15 nm, ndipo kuchuluka kwake kwakukulu ndi pafupifupi 150 mW.

Pakadali pano, owunikira ambiri omwe amagwiritsidwa ntchito kuti azindikire ndikuyesa mpweya waphulika munthawi yeniyeni ali ndi masensa amagetsi. Maelekitirodi omwe ali muma sensa awa - komanso magwiridwe antchito a analyzer - amawonongeka mwachangu, chifukwa chowonekera pafupipafupi ndi mpweya wa poizoni. Openda zamagesi onse amagwiritsa ntchito gwero lazoyatsa kwa nthawi yayitali ndipo amafunikira kukonza pang'ono, koma magetsi opangira kuwala amatha kutenga malo ambiri. Kukula kwa opendawa kumawapangitsa kukhala kovuta kuyika pafupi ndi zigwa zophulika.

Njira yowunikira kuphulika kwa gasi, yomwe ili ndi QCL yocheperako, ipatsa akatswiri ophulika mapangidwe azinthu zonse, zophatikizika, zotheka zomwe zimatha kuzindikira komanso kusamalira mosavuta. Ofufuza ku Hamamatsu ndi anzawo ku AIST ndi New Energy and Industrial Technology Development Organisation (NEDO), omwe adathandizira ntchitoyi, apitiliza kufufuza njira zokulitsira chidwi cha owunikira ndikuchepetsa kukonza.

Gululi likukonzekera zowonera zingapo kuti ayese ndikuwonetsa chowunikira chosavuta. Zida zomwe zimagwiritsa ntchito kutalika kwa QCL ndikuyendetsa ma circuits limodzi ndi Hamamatsu photodetectors zakonzedwa kuti zizitulutsidwa mu 2022.