Space–bandwidth product
The space–bandwidth product (SBP) is a measure of the information-carrying capacity of an optical system.[1][2] It is the product of the spatial extent (size) of the system and the bandwidth (frequency range) over which it operates.
Holography[edit]
In holography, the space–bandwidth product determines the resolution and quality of the reconstructed holographic image. The SBP sets a limit on the amount of information that can be recorded and reconstructed.
In digital holography, the SBP of a holographic imaging system can be calculated by analyzing at the recorded interference pattern.[3]
The SBP is directly related to the size of the hologram and the range of frequencies (or colors) that can be captured.
Microscopy[edit]
The SBP of a modern microscope can reach up to tens of megapixels. However, image sensors that are used typically are only a few megapixels, so the majority of optical information in the system is undetected.[2]
References[edit]
- ^ Park, Jongchan; Brady, David J.; Zheng, Guoan; Tian, Lei; Gao, Liang (2021-06-26). "Review of bio-optical imaging systems with a high space–bandwidth product". Advanced Photonics. 3 (04). doi:10.1117/1.AP.3.4.044001. ISSN 2577-5421. PMC 8849623. PMID 35178513.
- ^ a b Baek, YoonSeok; Lee, KyeoReh; Shin, Seungwoo; Park, YongKeun (2019-01-07). "Kramers–Kronig holographic imaging for high-space-bandwidth product". Optica. 6 (1): 45. doi:10.1364/optica.6.000045. ISSN 2334-2536.
- ^ Claus, Daniel; Iliescu, Daciana; Bryanston-Cross, Peter (2011-11-11). "Quantitative space–bandwidth product analysis in digital holography". Applied Optics. 50 (34): H116. doi:10.1364/ao.50.00h116. ISSN 0003-6935.