تقرير
Viewing-angle expansion of holographic image using enhanced-NA Fresnel hologram
| العنوان: | Viewing-angle expansion of holographic image using enhanced-NA Fresnel hologram |
|---|---|
| المؤلفون: | Chae, Byung Gyu |
| سنة النشر: | 2023 |
| المجموعة: | Physics (Other) |
| مصطلحات موضوعية: | Physics - Optics |
| الوصف: | The expansion of viewing angle is a crucial factor in holographic displays implemented with a spatial light modulator having a finite space-bandwidth. The enhanced-NA Fresnel hologram reconstructs a holographic image at an angle larger than the diffraction angle by a hologram pixel, where it has a difficulty in achieving this without an interference of high-order noises. This study presents the theoretical foundation for optimizing the enhanced-NA Fresnel hologram to recover the low space-bandwidth. The higher spectrum components of the digital hologram beyond the bandwidth exists in the form of their replications. The expansion of angular spectrum by its repetition during optimization procedure increases the image resolution, resulting in a viewing angle that is dependent on the hologram numerical aperture. We numerically and experimentally verify our strategy to expand a viewing angle of holographic image. Comment: 11 pages, 7 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2305.05196 |
| رقم الأكسشن: | edsarx.2305.05196 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |