Design and Performance of SuperSpec: An On-Chip, KID-Based, mm-Wavelength Spectrometer
Design and Performance of SuperSpec: An On-Chip, KID-Based, mm-Wavelength Spectrometer
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DOI：
10.1007/s10909-014-1122-8
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发表时间：
2014-09-01
影响因子：
2
通讯作者：
Zmuidzinas, J.
中科院分区：
文献类型：
--
作者：
Shirokoff, E.;Barry, P. S.;Zmuidzinas, J.
SuperSpec是一款用于毫米和亚毫米波长天文学的超紧凑型片上光谱仪。它非常小的尺寸，宽的光谱带宽和高度多路复用的探测器读出将使强大的多目标光谱仪的建设，在高红移星系的观测。SuperSpec是一个滤波器组，具有平面、光刻、超导传输线谐振器滤波器和由氮化钛制成的集总元件动态电感探测器。我们已经建立了一个81探测器的原型，在195-310 GHz频段。该原型有一个宽带金属馈电喇叭，过渡到微带，为滤波器组馈电。该原型已经证明了光学滤波器组通道的分辨率范围从300到700，测量的分数频率噪声为Hz。
SuperSpec is an ultra-compact spectrometer-on-a-chip for mm and submm wavelength astronomy. Its very small size, wide spectral bandwidth, and highly multiplexed detector readout will enable construction of powerful multi-object spectrometers for observations of galaxies at high redshift. SuperSpec is a filter bank with planar, lithographed, superconducting transmission line resonator filters and lumped-element kinetic inductance detectors made from Titanium Nitride. We have built an 81 detector prototype that operates in the 195-310 GHz band. The prototype has a wide-band metal feed horn with a transition to microstrip that feeds the filter bank. The prototype has demonstrated optical filter bank channels with a range of resolving powers from 300 to 700, measured fractional frequency noise of at Hz.