Development of a multi-Fourier-transform interferometer: imaging experiments in millimeter and submillimeter wave bands.
Development of a multi-Fourier-transform interferometer: imaging experiments in millimeter and submillimeter wave bands.
复制标题
多重傅里叶变换干涉仪的研制：毫米波和亚毫米波波段的成像实验。
作者：
I. Ohta;M. Hattori;H. Matsuo
我们在Martin-Puplett型傅里叶变换光谱仪的基础上开发了毫米和亚毫米迈克尔逊型测辐射热干涉仪，称为多傅里叶变换干涉仪（MuFT）。我们已经成功证明 MuFT 能够执行宽带成像观测，正如我们之前的论文 (OHM) [Appl.选择。 45, 2576 (2006)]。我们成功地获取了宽带扩展源的互相干信号。通过按照OHM中提出的公式分析获得的互相干信号，成功提取了从5 cm(-1) (150 GHz)到35 cm(-1) (1.05 THz)、波数间隔为0.4 cm(-1) (12 GHz)的每个波数的二维源图像。 OHM中提出的MuFT的大动态范围优势得到了实验证实。
We have developed a millimeter and submillimeter Michelson-type bolometric interferometer based on a Martin-Puplett-type Fourier-transform spectrometer named multi-Fourier-transform interferometer (MuFT). We have succeeded in proving that the MuFT is capable of performing broadband imaging observations as theoretically proposed by our previous paper (OHM) [Appl. Opt. 45, 2576 (2006)]. We succeeded in acquiring the mutual coherence signal for an extended source in broadband. By analyzing the obtained mutual coherence signal following the formula proposed in OHM, 2D source images for each wavenumber from 5 cm(-1) (150 GHz) to 35 cm(-1) (1.05 THz) with a wavenumber interval of 0.4 cm(-1) (12 GHz) were successfully extracted. The large dynamic range advantage of the MuFT proposed in OHM was confirmed experimentally.