Size Dependent Optical Nonlinearity and Optical Limiting Properties of Water Soluble CdSe Quantum Dots

Table 1

Data showing particle size, energy band gap, nonlinear absorption coefficient (), optical limiting threshold, and imaginary part of susceptibility (Im ⁽³⁾) of the samples (C₁, C₂, and C₃).

Sample	Particle size (nm)	Energy B.G (eV)	(m/W)	Optical limiting threshold (GW/cm^2)	Im ^(3)    10^−11 (e.s.u)
C1	4.17	2.52	0.27 10^−10	0.57	0.16
C2	4.96	2.38	0.69 10^−10	0.48	0.41
C3	5.25	2.34	2.47 10^−10	0.35	1.45