. 2018 Jun 13;7:19. doi: 10.1038/s41377-018-0029-6

Table 1.

Comparison of the imaging domain, superresolution mechanism, image formation mechanism, and dimensions from previous reports and of LOT

	Imaging domain	Superresolution mechanism	Image formation mechanism	Dimensions
Lee et al.⁴	Surface	OA/photothermal detection using AFM tips	Point-by-point scanning	2D in x and y
Danielli et al.²	Ballistic	Nonlinear optical excitation using optical saturation	Point-by-point scanning	3D
Yao et al.³	Ballistic	Nonlinear optical excitation using photobleaching	Point-by-point scanning	3D
Chaigne et al.^{5, 6}	Diffusive	Fluctuations of OA signals with dynamic optical speckle excitation	Ultrasound beamforming using a linear array probe	2D in x and z
		Fluctuations of OA signals with flowing particles	Ultrasound beamforming using a linear array probe	2D in x and z
Conkey et al.⁷		Optical excitation with wavefront shaping	Point-by-point scanning	3D
Luís et al.⁸		Fluctuations of OA signals with flowing particles	Ultrasound beamforming using a spherical array probe	3D