TY - JOUR
T1 - Cavity modes in broadly tunable superconducting coherent terahertz sources
AU - Delfanazari, Kaveh
AU - Klemm, Richard A.
AU - Tsujimoto, Manabu
AU - Cerkoney, Daniel P.
AU - Yamamoto, Takashi
AU - Kashiwagi, Takanari
AU - Kadowaki, Kazuo
PY - 2019
Y1 - 2019
N2 -
We discuss the cavity modes and radiation pattern in solid state terahertz (THz) sources based on layered high-temperature superconducting Bi
2
Sr
2
CaCu
2
O
8+δ
(Bi-2212). We experimentally measure the emission spectra using the Fourier transform infrared spectrometer in order to elucidate the radiation mechanism of the mesa samples. Moreover, we experimentally study the angular dependence of the emission intensity obtained in one mesa's plane at the frequency f = 0.61 THz, at various detection angles θ by rotating the sample holder relative to the detector, to identify the excited EM cavity modes within the mesa that participate in the device output power enhancement. We modelled the mesa cavity and find a relatively good agreement between the experiment and theory. Our results show that compact, coherent and continuous-wave Bi-2212 THz devices are one of the most promising THz sources, capable of bridging the microwaves to photonics gap.
AB -
We discuss the cavity modes and radiation pattern in solid state terahertz (THz) sources based on layered high-temperature superconducting Bi
2
Sr
2
CaCu
2
O
8+δ
(Bi-2212). We experimentally measure the emission spectra using the Fourier transform infrared spectrometer in order to elucidate the radiation mechanism of the mesa samples. Moreover, we experimentally study the angular dependence of the emission intensity obtained in one mesa's plane at the frequency f = 0.61 THz, at various detection angles θ by rotating the sample holder relative to the detector, to identify the excited EM cavity modes within the mesa that participate in the device output power enhancement. We modelled the mesa cavity and find a relatively good agreement between the experiment and theory. Our results show that compact, coherent and continuous-wave Bi-2212 THz devices are one of the most promising THz sources, capable of bridging the microwaves to photonics gap.
UR - http://www.scopus.com/inward/record.url?scp=85064410386&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/1182/1/012011
DO - 10.1088/1742-6596/1182/1/012011
M3 - Article
AN - SCOPUS:85064410386
SN - 1742-6588
VL - 1182
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 1
M1 - 012011
T2 - 13th Workshop on Low Temperature Electronics, WOLTE 2018
Y2 - 10 September 2018 through 13 September 2018
ER -