The 31st ISOM (ISOM’21) will be held from October 3 to 6 ,2021 at the Kobe Chamber of Commerce and Industry, Kobe ,Hyogo, Japan.

The origin of ISOM is SOM (Symposium on OpticalMemory), which was held firstly in 1985 in Tokyo as a Japanese domestic symposium. The first ISOM (International Symposium on Optical Memory) was held in 1987 also in Tokyo. Until 1994, ISOM and SOM were held alternately every other year, and since 1995, ISOM has been held every year. The total number of papers of the past symposiums has reached 3,595, and the total number of participants has reached 10,626.

The purpose of the symposium was to provide a forum for information exchange on a broad range of topics covering science and technology in optical memory and its related fields. However, information explosion in the internet and cloud service has been enforcing optical memory to change from that for consumer storage to that for enterprise storage.Many colleagues of us have been seeking for new frontiers of optical memory technologies. Considering this situation, the scopes of ISOM are being continuously updated and have been reorganized in 2016. To further highlight them, the official name of ISOM was changed from “International Symposium on Optical Memory” to “International Symposium on Imaging, Sensing, and Optical Memory”in 2017. Paper submissions related to the new scopes as well as the conventional ones would be strongly encouraged.

In ISOM’21, along this direction, it will be very much expected to discuss the current status of optical memory, imaging, sensing, and other related technologies. ISOM'20 was held online under COVID-19, but as in 2015-2019, we will resume the demonstration session at the symposium, in which authors will be able to show their vivid and attractive research results.

We are looking forward to your paper submission and seeing you in Kobe, Hyogo, Japan.


ISOM’21 will discuss the current status of Optical Memory, Imaging, Sensing, and Other Related Technologies. The scope of ISOM’21 covers the above research fields. ISOM will provide the attractive fields to exchange the latest advances and/or ideas in the above research fields and also provide scientific interaction and collaboration. Topics to be covered in this symposium include, but are not restricted to:

  1. Optical Memory
    • Professional Archive System
    • Holographic Memory
    • High-density Recording
    • Media and Material Science
    • Drive Technologies and Signal Processing
    • Components and Devices
    • Testing Methods
    • Others
  2. Imaging
    • Computational Imaging
    • Wavefront Coding
    • Image Processing
    • Optical System Design
    • Devices
    • Others
  3. Sensing
    • Medical and Bio-systems
    • Three-dimensional Sensing
    • Digital Holography
    • Spectroscopy
    • Bio-lab on a Disc
    • Others
  4. Other Related Technologies
    • Optical Interconnection and Switching
    • Optical Information Processing
    • Nanophotonics and Plasmonics
    • Components
    • Material
    • Display
    • Photolithography
    • Nonvolatile Memory
    • Emerging Technologies and New World
    • Others