Optical super-resolution by high-index liquid-immersed microspheres

被引：300

作者：

Darafsheh, Arash ^{[1
]}

Walsh, Gary F. ^{[2
,3
,4
]}

Dal Negro, Luca ^{[2
,3
]}

Astratov, Vasily N. ^{[1
]}

机构：

[1] Univ N Carolina, Dept Phys & Opt Sci, Ctr Optoelect & Opt Commun, Charlotte, NC 28223 USA

[2] Boston Univ, Photon Ctr, Boston, MA 02215 USA

[3] Boston Univ, Dept Elect & Comp Engn, Boston, MA 02215 USA

[4] USA, NSRDEC, Nanomat Sci Team, Natick, MA 01760 USA

来源：

APPLIED PHYSICS LETTERS | 2012年 / 101卷 / 14期

基金：

美国国家科学基金会;

关键词：

PHOTONIC NANOJETS; LIGHT; BACKSCATTERING; FUNDAMENTALS; ENHANCEMENT; HYPERLENS; LENSES;

D O I：

10.1063/1.4757600

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

It is experimentally shown that barium titanate glass microspheres with diameters (D) in the range 2-220 mu m and with high refractive index (n similar to 1.9-2.1) can be used for super-resolution imaging of liquid-immersed nanostructures. Using micron-scale microspheres, we demonstrate an ability to discern the shape of a pattern with a minimum feature size of similar to lambda/7, where lambda is the illumination wavelength. For spheres with D > 50 mu m, the discernible feature sizes were found to increase to similar to lambda/4. Detailed data on the resolution, magnification, and field-of-view are presented. This imaging technique can be used in biomedical microscopy, microfluidics, and nanophotonics applications. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4757600]

引用

页数：4

共 26 条

[1]

Astratov VN, 2010, SPRINGER SER OPT SCI, V156, P423, DOI 10.1007/978-1-4419-1744-7_17

[2] Photonic nanojet enhancement of backscattering of light by nanoparticles: a potential novel visible-light ultramicroscopy technique [J].

Chen, ZG ;

Taflove, A ;

Backman, V .

OPTICS EXPRESS, 2004, 12 (07) :1214-1220

[3]

Darafsheh A., 2012, P IEEE 14 INT C TRAN, DOI [10.1109/ICTON.2012.6254502, DOI 10.1109/ICTON.2012.6254502]

[4] Periodically focused modes in chains of dielectric spheres [J].

Darafsheh, Arash ;

Astratov, Vasily N. .

APPLIED PHYSICS LETTERS, 2012, 100 (06)

[5] Contact focusing multimodal microprobes for ultraprecise laser tissue surgery [J].

Darafsheh, Arash ;

Fardad, Amir ;

Fried, Nathaniel M. ;

Antoszyk, Andrew N. ;

Ying, Howard S. ;

Astratov, Vasily N. .

OPTICS EXPRESS, 2011, 19 (04) :3440-3448

[6] Spectral analysis of three-dimensional photonic jets [J].

Devilez, Alexis ;

Stout, Brian ;

Bonod, Nicolas ;

Popov, Evgeny .

OPTICS EXPRESS, 2008, 16 (18) :14200-14212

[7] Three-dimensional subwavelength confinement of light with dielectric microspheres [J].

Devilez, Alexis ;

Bonod, Nicolas ;

Wenger, Jerome ;

Gerard, Davy ;

Stout, Brian ;

Rigneault, Herve ;

Popov, Evgeny .

OPTICS EXPRESS, 2009, 17 (04) :2089-2094

[8] Direct imaging of photonic nanojets [J].

Ferrand, Patrick ;

Wenger, Jerome ;

Devilez, Alexis ;

Pianta, Martina ;

Stout, Brian ;

Bonod, Nicolas ;

Popov, Evgueni ;

Rigneault, Herve .

OPTICS EXPRESS, 2008, 16 (10) :6930-6940

[9] Microsphere based microscope with optical super-resolution capability [J].

Hao, Xiang ;

Kuang, Cuifang ;

Liu, Xu ;

Zhang, Haijun ;

Li, Yanghui .

APPLIED PHYSICS LETTERS, 2011, 99 (20)

[10] Scanning near-field optical microscopy with aperture probes: Fundamentals and applications [J].

Hecht, B ;

Sick, B ;

Wild, UP ;

Deckert, V ;

Zenobi, R ;

Martin, OJF ;

Pohl, DW .

JOURNAL OF CHEMICAL PHYSICS, 2000, 112 (18) :7761-7774

← 1 2 3 →