Abstract

In a previous Letter [ Tsang and Psaltis, Opt. Lett. 31, 2741 (2006) ], we assert that the total reflection coefficient of two dielectric slabs goes to zero in the limit of single-waveguide resonance. A more careful derivation shows that this is not the case. The correct condition in which reflectionless evanescent-wave amplification can be achieved by two dielectric planar waveguides is derived in this Erratum.

© 2006 Optical Society of America

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  1. M. Tsang and D. Psaltis, Opt. Lett. 31, 2741 (2006).
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Figures (1)

Fig. 1
Fig. 1

Plot of R , T , and r 2 exp ( 2 i k z a ) 1 versus k x k 0 .

Equations (7)

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lim r 2 exp ( 2 i k z a ) 1 R = lim r 2 exp ( 2 i k z a ) 1 Γ + τ 2 Γ exp ( 2 i k z d ) 1 Γ 2 exp ( 2 i k z d ) ,
= lim r 2 exp ( 2 i k z a ) 1 Γ ( 1 τ 2 Γ 2 ) ,
= 2 r t t r .
R = Γ + τ 2 Γ exp ( 2 i k z d ) 1 Γ 2 exp ( 2 i k z d ) = 0 ,
τ 2 = Γ 2 exp ( 2 i k z d ) ,
T = τ 2 exp ( i k z d ) 1 Γ 2 exp ( 2 i k z d )
= exp ( i k z d ) ,

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