Hamamatsu Photonics has successfully developed a quantum cascade laser (QCL) output power by analyzing the generation principle of terahertz waves, using Hamamatsu's own optical design technology, and high{{0}}efficiency diffraction grating external resonators. The world's first QCL module that can generate terahertz waves of any frequency in the range of 0.422THz.
QCL moduli qanday ko'rinishga ega
Asosiy tadqiqot natijalari
1. Chiqish quvvati oldingi terahertz chiziqli bo'lmagan QCL dan 5 baravar yuqori. Hamamatsu Photonics terahertz chiziqli bo'lmagan QCL ichida terahertz to'lqinining tarqalish printsipini tahlil qildi va uning yuqori yuzasini yuqori-qarshilikka chidamli kremniy linzalari bilan bog'lash terahertz to'lqinlarining hosil bo'lish samaradorligini oshirishi mumkinligini aniqladi va uning kristalidan foydalangan. yillar davomida to'plangan o'sish texnologiyasi. Yarimo'tkazgichli jarayon texnologiyasi ichki tuzilmani optimallashtiradi va 1 THz chastota nuqtasida eng yuqori chiqishni sub-millivatt darajasiga oshiradi, bu an'anaviy chiziqli bo'lmagan QCLdan 5 baravar ko'proqdir.
2. The world's first 0.422THz frequency adjustable QCL module. Hamamatsu Photonics has conducted in-depth research on the material of the anti-reflection film on the top surface of the terahertz nonlinear QCL. At the same time, through the unique optical design technology, a matching diffraction grating is set outside the QCL to form a resonator, and the tilt is controlled by electrical appliances. The world's first QCL module capable of generating arbitrary terahertz waves in the range of 0.42 to 2 THz at room temperature has been realized.
Chastotani almashtirish ko'rsatkichi
Chastotani almashtirish printsipi: Terahertz chiziqli bo'lmagan QCLdan chiqarilgan o'rta{0}}infraqizil lazer nurlari diffraktsiya panjarasida aks etadi. Bunday holda, THz to'lqinining chastotasini almashtirishga diffraktsiya panjarasini elektr nazorat qilish va moyillikni o'zgartirish orqali erishiladi.
RD fon
Due to the different components contained in the sample to be tested, the frequency of terahertz waves that are easily absorbed will also be different. Using this characteristic, the research results are expected to be used for quality assessment and non-destructive analysis of samples. In addition, since terahertz waves are higher in frequency than the frequency band used by the high-speed communication standard "5G", this product is also expected to be used for the next generation of "6G" communication.
2018-yilda Hamamatsu Photonics noyob kvant tuzilmalarini loyihalash texnologiyasidan foydalangan holda, -oʻzaro oʻtishga qarshi ikki tomonlama yuqori energiya holati dizaynidan (AnticrossDAUTM) foydalangan holda terahertz chiziqli boʻlmagan QCLni ishlab chiqdi. Ushbu terahertz chiziqli bo'lmagan QCL terahertz to'lqinining chastotasini o'zgartirishi va uni namunadagi tarkibiy qismlarga ko'ra nurlantirishi va keyin assimilyatsiya tezligiga ko'ra tahlilning aniqligini yaxshilashi mumkin. Biroq, hozirda bitta modulda chastota o'zgarishiga erisha oladigan yarimo'tkazgichli lazerli yorug'lik manbai mavjud emas. Shuning uchun Hamamatsu Photonics QCL modullarini o'zgartirish chastotasini-tadqiq qiladi va rivojlantiradi.
RD yutuqlari sarhisobi
In this research report, Hamamatsu Photonics analyzed the generation principle of terahertz waves in QCL, and optimized the internal structure using crystal growth technology and semiconductor process technology accumulated over the years. At the same time, the principle of terahertz wave propagation inside the QCL was also analyzed, and it was found that the connection between the top surface and the high{{0}}resistance silicon lens can improve the generation efficiency of terahertz waves and increase the output power to more than 5 times that of the past. Combining the unique optical design technology of Hamamatsu Photonics, and matching the QCL with a suitable diffraction grating, an efficient external resonator is formed, and then the inclination is changed by electrically controlling the diffraction grating, thereby realizing the world's first 0.42 A QCL module that generates terahertz waves of arbitrary frequencies in the 2THz range.
Ushbu tadqiqot natijalari shuni ko'rsatadiki, sinovdan o'tkaziladigan namunadagi turli komponentlarning turli xil yutilish chastotalari bo'lsa, modul yordamida chastotani almashtirish va har bir komponentning yutilish tezligini tekshirish uchun tor-teragerts to'lqinlarini nurlantirish mumkin. dori, oziq-ovqat va yarimo'tkazgich materiallarini yaxshilash mumkin. sifatni baholash va buzilmaydigan sinovlar-aniqligi. Bundan tashqari, u yuqori{2}}molekulyar polimer materiallarni, masalan, ilgari aniqlanmagan plastmassalarni aniqlashda ham qo'llanilishi kutilmoqda. Keyinchalik, Hamamatsu Photonics THz to'lqinlarining barqaror va uzluksiz ishlashiga erishish uchun QCL ning issiqlik tarqalish strukturasini chuqur o'rganishni davom ettiradi. TGs to‘lqinlari radioastronomiya kabi sohalarda koinotni kuzatishda qo‘llanilishi va ma’lumotlarni uzatish tezligi sekundiga yuzlab gigabitga yetishi kutilmoqda. Ultra{3}}yuqori-katta{5}}sig'imdagi qisqa-masofaviy simsiz aloqani rivojlantirish yo'nalishidagi dastur.
Kelajakda Hamamatsu Photonics o'zining noyob mikroelektromexanik tizimlari (MEMS) texnologiyasidan QCL modullarini barmoq uchigacha kichraytirish uchun ham foydalanadi.
