Multilayered Superlenses Containing CSBR or Active Medium for Subwavelength Photolithography

Yeh, Li-Hao; Kiang, Jean‐Fu

doi:10.2528/pierb13123101

Cited by 3 publications

(2 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To date, many studies on the multilayer near-field superlenses have been done by researchers [3,[10][11][12][13][14]. Most of these studies have focused on the silverpolymer multilayer at the matching condition.…”

Section: Introductionmentioning

confidence: 98%

Analysis and Design of an Object-Independent Superlens

2016

View full text Add to dashboard Cite

A new design for the multilayer superlens, with the sub-wavelength imaging ability for various 2D objects in the visible range, is introduced and analyzed. The designed superlens will be more versatile for practical applications. A rigorous and efficient approach based on the method of moments is used to study the imaging performance of this structure. The imaging performance of the proposed superlens is evaluated using the correlation coefficient. In this work, the closed-form dyadic Green's functions in spatial domain, needed for the method of moments solutions, are obtained by applying the complex image method. Besides, the numerical integration is exploited to verify this method. The imaging results obtained via our approach are examined by comparison with the finite element method simulations that reveal good efficiency and accuracy of the proposed method.

show abstract

Section: Introductionmentioning

confidence: 98%

Analysis and Design of an Object-Independent Superlens

2016

View full text Add to dashboard Cite

show abstract

“…Most studies of multilayered superlenses have been focused on transfer-function analysis [10][11][12][13]. While this analysis reveals a lens's transmission coefficients over a range of spatial frequencies, it does not provide a measure of image-reconstruction capability, which is required for practical imaging [9].…”

Section: Introductionmentioning

confidence: 99%

Two-Dimensional Sub-diffraction-limited Imaging by an Optimized Multilayer Superlens

Ahmadi

Forooraghi

Faraji‐Dana

et al. 2016

Journal of the Optical Society of Korea

View full text Add to dashboard Cite

An optimized multilayer superlens is designed, using a rigorous and efficient approach based on the method of moments (MoM) in conjunction with a simulated annealing (SA) algorithm. For the MoM solution, fast evaluation of closed-form Green's functions (GFs) in the spatial domain is performed by applying the complex-image (CI) technique, which obviates the time-consuming numerical evaluation of Sommerfeld integrals. The imaging capability of the superlens is examined with the correlation coefficient; results show that using circular polarization for the incident wave can improve this coefficient. To validate the proposed method, finite-element-based simulations are exploited, which reveal the method's accuracy and computational efficiency. Simulation results indicate that the designed structure is capable of producing two-dimensional sub-diffraction-limited images in the visible range, which may make it more versatile for practical applications. Finally, as a considerable finding, it is demonstrated for the proposed design that using circularly polarized illumination provides improved super-resolving performance, compared to linearly polarized illumination.

show abstract