Snapshot imaging spectrometer based on a microlens array

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2019,（1）
• 页码范围: 31-35
• 页数: 5页
• 语种: 英文
• DOI: 10.3788/COL201917.011101

摘要

This Letter proposes a snapshot imaging spectrometer,which obtains the spectral information and spatial information in one "shot".The device proposed can achieve the data cube size of 21 × 29 × 40 in the waveband of 400-800 nm.The core element of this system is the microlens array,which contains 60 × 60 microlenses in a square arrangement,each microlens has an aperture of 125 μm × 125 μm,and the F number is 15.The microlens array is mounted in a rotation mount,which provides 360° of rotation around the optical axis to maximize the spectral resolution.The final resolution of the system is about 10 nm.