Compact High-Tc Superconducting Terahertz Emitter with Tunable Frequency from 0.15 to 1 THz
نویسندگان
چکیده
A compact cryogenic terahertz emitter is highly desired for applications in astronomy with a broad frequency range of emissions and relatively high emission power. In this paper, we report on based Bi2Sr2CaCu2O8 + δ (BSCCO) intrinsic Josephson junctions, from 0.15 to 1.01 THz. The square gold-BSCCO-gold mesa sapphire substrate fabricated by simple efficient method. highest power 5.62 μW at 0.35 THz was observed 50 K. record low achieved 85 K, extending the applicability BSCCO emitters low-frequency range.
منابع مشابه
Applications using high-Tc superconducting terahertz emitters
Using recently-developed THz emitters constructed from single crystals of the high-Tc superconductor Bi2Sr2CaCu2O8+δ, we performed three prototype tests of the devices to demonstrate their unique characteristic properties for various practical applications. The first is a compact and simple transmission type of THz imaging system using a Stirling cryocooler. The second is a high-resolution Mich...
متن کاملIntense, carrier frequency and bandwidth tunable quasi single-cycle pulses from an organic emitter covering the Terahertz frequency gap
In Terahertz (THz) science, one of the long-standing challenges has been the formation of spectrally dense, single-cycle pulses with tunable duration and spectrum across the frequency range of 0.1-15 THz (THz gap). This frequency band, lying between the electronically and optically accessible spectra hosts important molecular fingerprints and collective modes which cannot be fully controlled by...
متن کاملHigh power and spectral purity continuous-wave photonic THz source tunable from 1 to 4.5 THz for nonlinear molecular spectroscopy
We report a diffraction-limited photonic terahertz (THz) source with linewidth <10MHz that can be used for nonlinear THz studies in the continuous wave (CW) regime with uninterrupted tunability in a broad range of THz frequencies. THz output is produced in orientation-patterned (OP) gallium arsenide (GaAs) via intracavity frequency mixing between the two closely spaced resonating signal and idl...
متن کاملTunable resolution terahertz dual frequency comb spectrometer.
Terahertz dual frequency comb spectroscopy (THz-DFCS) yields high spectral resolution without compromising bandwidth. Nonetheless, the resolution of THz-DFCS is usually limited by the laser repetition rate, which is typically between 80 MHz and 1 GHz. In this paper, we demonstrate a new method to achieve sub-repetition rate resolution in THz-DFCS by adaptively modifying the effective laser repe...
متن کاملJosephson-vortex-flow terahertz emission in layered high-Tc superconducting single crystals.
We report on the successful terahertz emission (0.6-1 THz) that is continuous and tunable in its frequency and power, by driving Josephson vortices in resonance with the collective standing Josephson plasma modes excited in stacked Bi2Sr2CaCu2O8+x intrinsic Josephson junctions. Shapiro-step detection was employed to confirm the terahertz-wave emission. Our results provide a strong feasibility o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Applied sciences
سال: 2023
ISSN: ['2076-3417']
DOI: https://doi.org/10.3390/app13063469