Imaging objects behind small obstacles using axicon lens

• Main Authors: Perinchery, Sandeep Menon, Shinde, Anant, Murukeshan, Vadakke Matham
• Other Authors: Asundi, Anand K.
• Format: Article
• Language: English
• Published: 2019
• Subjects: Axicon Lens; Imaging Behind Obstacle; Engineering::Mechanical engineering
• Online Access: https://hdl.handle.net/10356/106842; http://hdl.handle.net/10220/49664
• Institution: Nanyang Technological University

Axicon lenses are conical prisms, which are known to focus a light source to a line comprising of multiple points along the optical axis. In this study, we analyze the potential of axicon lenses to view, image and record the object behind opaque obstacles in free space. The advantage of an axicon lens over a regular lens is demonstrated experimentally. Parameters such as obstacle size, object and the obstacle position in the context of imaging behind obstacles are tested using Zemax optical simulation. This proposed concept can be easily adapted to most of the optical imaging methods and microscopy modalities.