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 module zoo li cas
Cov kev tshawb fawb tseem ceeb
1. Lub zog tso zis yog 5 npaug siab dua li yav dhau los terahertz nonlinear QCL. Hamamatsu Photonics txheeb xyuas lub hauv paus ntsiab lus ntawm terahertz yoj propagation nyob rau hauv lub terahertz nonlinear QCL, thiab pom tias kev sib txuas ntawm nws sab saum toj nto nrog ib tug siab - tiv thaiv silicon lens tuaj yeem txhim kho cov tiam ntawm terahertz nthwv dej, thiab siv nws cov siv lead ua. kev loj hlob technology tau sau ntau xyoo. Thiab semiconductor txheej txheem thev naus laus zis ua kom zoo rau cov qauv sab hauv kom nce qhov siab tshaj tawm ntawm 1THz zaus taw tes rau qib -milliwatt, uas yog ntau dua 5 npaug ntawm cov tsoos nonlinear QCL.
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.
Frequency switching indication
Lub hauv paus ntsiab lus hloov zaus: Qhov nruab nrab -infrared laser beam emissions los ntawm terahertz nonlinear QCL yog tshwm sim nyob rau hauv ib tug diffraction grating. Hauv qhov no, qhov hloov pauv ntawm zaus ntawm THz nthwv dej yog ua tiav los ntawm kev tswj hluav taws xob tswj cov diffraction grating thiab hloov qhov inclination.
RD keeb kwm
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.
Hauv 2018, Hamamatsu Photonics tau tsim terahertz nonlinear QCL los ntawm kev siv lub cim quantum qauv tsim tshuab, siv los tiv thaiv- hla dual siab- lub zog tsim hluav taws xob (AnticrossDAUTM). Qhov no terahertz nonlinear QCL tuaj yeem hloov qhov zaus ntawm terahertz yoj thiab irradiate nws raws li cov khoom muaj nyob hauv cov qauv, thiab tom qab ntawd txhim kho qhov kev txheeb xyuas qhov tseeb raws li qhov nqus tau. Txawm li cas los xij, tam sim no tsis muaj semiconductor laser teeb qhov chaw uas tuaj yeem ua tiav qhov hloov pauv hauv ib qho module. Yog li ntawd, Hamamatsu Photonics tau tshawb fawb thiab tsim cov zaus- hloov QCL modules.
Cov ntsiab lus ntawm RD Achievements
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.
Cov txiaj ntsig ntawm txoj kev tshawb fawb no qhia tau hais tias nyob rau hauv rooj plaub ntawm qhov sib txawv nqus ntau zaus ntawm cov khoom sib txawv hauv cov qauv yuav tsum tau sim, siv lub module hloov qhov zaus thiab irradiate nqaim -band terahertz nthwv dej los kuaj xyuas tus nqi nqus ntawm txhua qhov khoom. tuaj yeem txhim kho cov tshuaj, khoom noj thiab cov khoom siv semiconductor. Kev soj ntsuam zoo thiab qhov tseeb ntawm qhov tsis yog -kev kuaj kev puas tsuaj. Tsis tas li ntawd, nws kuj tseem yuav tsum tau siv rau kev txheeb xyuas qhov siab - cov ntaub ntawv polymer molecular xws li cov yas uas tsis yooj yim txheeb xyuas ua ntej. Tom ntej no, Hamamatsu Photonics tseem yuav kawm txuas ntxiv mus kawm txog cov qauv cua sov ntawm QCL hauv qhov tob, txhawm rau ua tiav kev ua haujlwm ruaj khov thiab txuas ntxiv ntawm THz nthwv dej. Nws cia siab tias THz nthwv dej yuav siv rau hauv thaj chaw xws li xov tooj cua astronomy los soj ntsuam lub ntiaj teb, thiab cov ntaub ntawv xa mus ceev yuav ncav cuag ntau pua gigabits ib ob. Daim ntawv thov nyob rau hauv kev loj hlob kev taw qhia ntawm ultra-siab-ceev loj-muaj peev xwm luv-kev sib txuas lus wireless.
Nyob rau hauv lub neej yav tom ntej, Hamamatsu Photonics tseem yuav siv nws cov cim microelectromechanical systems (MEMS) thev naus laus zis kom txo qis QCL modules mus rau qhov loj ntawm lub ntsis ntiv tes.
