Geometrical form factor improvement for receiving system of infrared lidar

Kouki Ikuta, Tsutomu Kudo, Noboru Yoshikane, Nilesh J. Vasa, Yuji Oki, Mitsuo Maeda

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Improvement of an infrared light detection and ranging (IR-lidar) system for a short range (0-1000 m) and with high resolution is studied to enhance a geometrical form factor. Theoretical modeling of Mie scattering echo signals agrees with the experimental results. Introduction of a lens in front of the detector is effective for increasing the geometrical form factor, and a significant improvement in the received signal intensity is achieved, especially for short-range measurements around 100 m. This is useful for the IR-lidar system with a detector diameter of less than 1 mm. In the theoretical model, a ray-tracing technique was applied and a transmitting laser beam with Gaussian profile was considered for better accuracy.

Original languageEnglish
Pages (from-to)464-470
Number of pages7
JournalOptical Review
Issue number5
Publication statusPublished - 1999

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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