Fiber-coupled terahertz time-domain spectrometer with 10 THz bandwidth

被引：0
|
作者：
Dohms, Alexander [1 ]
Keyvaninia, Shahram [1 ]
Breuer, Steffen [1 ]
Deumer, Milan [1 ]
Hesselmann, Tina [1 ]
Gruner, Marko [1 ]
Liebermeister, Lars [1 ]
Schell, Martin [1 ]
Kohlhaas, Robert B. [1 ]
机构：
[1] Fraunhofer HHI, Berlin, Germany
来源：
2024 49TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES, IRMMW-THZ 2024 | 2024年
关键词：
terahertz time-domain spectroscopy; ultra broadband; photoconductive antenna; hybrid integration; substrate transfer; III-V on Si; SPECTROSCOPY;
D O I：
10.1109/IRMMW-THz60956.2024.10697595
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We present a fiber-coupled terahertz (THz) time-domain spectrometer with InGaAs photoconductive membranes (PCM) antennas on silicon as emitter and receiver. With these novel antennas we achieve a very high peak dynamic range of 115 dB and a record bandwidth of 10 THz. This represents an increase of 3.5 THz compared to state-of-the art photoconductive antennas (PCAs), which are restricted by THz absorption in the InP:Fe substrate.
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页数：2
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