Skip to main content
. 2024 Dec 5;24(23):7781. doi: 10.3390/s24237781

Figure 2.

Figure 2

Focal point overlap comparison of the dual-wavelength and chromatic metalenses on the waveguide. (a) Point spread function (PSF) of segmented metalens for ATTO 490LS fluorescence detection at 500 and 660 nm. (b) PSF of single-wavelength metalens at 500 and 660 nm. (c) PSF of segmented metalens for Alexa 555 fluorescence detection at 520 and 570 nm. (d) PSF of single-wavelength metalens at 520 and 570 nm. (e) PSF of segmented metalens for APC-Cy7 fluorescence detection at 650 and 780 nm. (f) PSF of single-wavelength metalens at 650 and 780 nm. The color bars depict optical field intensity.