Sub-wavelength laser nanopatterning using droplet lenses for iphone

Nanooptical imaging of subcellular structures and nanopatterned letters. By nanostructuring a gold film we created an array of metalenses generating foci of 160 nm 0. Plasmonic cavities for enhanced spotaneous emission the harvard community has made this article openly available. Photonic ic for optical detection with sub wavelength resolution. Surface nanopatterning over a large, curved area over 200. A superlens is a lens that uses special materials to go beyond the diffraction limit a feature of conventional lenses that limits the fineness of resolution, and a team led by boliang jia and. Metamaterials are known to promise subwavelength focusing through negative refraction 1. Plasmonic cavities for enhanced spotaneous emission. Nanoscale patterns on rigid or flexible substrates are of considerable interest in modern nanophotonics and optoelectronics devices. Rapid fabrication of mini droplet lens array with tunable focal length. Next, we use the printed droplets as lenses to focus laser pulses directly below each droplet, locally modifying the surface. Another way to achieve subwavelength resolution is with a lens having a negative refractive index. Photonic ic for optical detection with sub wavelength resolution f. Using a natural singlecell biomagnifier for subwavelength imaging.

Broadband subwavelength imaging using a tunable graphene. Optics for hire introduces lens database for optical engineers. Subwavelength structures are produced in this study by using a laser beam and microdroplets that carry nanoparticles to the deposition substrate. Baets ghent university imec, department of information technology intec sintpietersnieuwstraat 41, 9000 gent, belgium, europe tel. Rapid fabrication of mini droplet lens array with tunable focal. Hyperbolic secant slit lens for subwavelength focusing of light. Subwavelength resolution is also possible with optical antennas, the nanoscale. By using a photonic ic we can detect the variation of this mode to mode coupling, when the bit pattern is moved. Clause xu 3120 bowfield way west lafayette, in 47906 phone. Replacement of the grin lens with a photoniccrystal analogue fabricated in silicon is shown practically not to impair the lens performance. Recently it was shown that precisely tailored diffraction of light on a binary mask can create a sub wavelength optical hotspot that can be used for optical imaging with resolution far exceeding that of conventional optical instruments 2. Radially polarized converter created by femtosecond laser nanostructuring of glass article pdf available in applied physics letters 9820. The recent development of using surface plasmon resonances to concentrate optical field into subwavelength scale further extended cqed research of into a new regime. Radially polarized converter created by femtosecond laser.

We show that a planar plasmonic metamaterial with spatially variable metaatom parameters can focus transmitted light into subwavelength hotspots located beyond the nearfield of the metamaterial. Our results firmly establish that metalenses can have widespread applications in laserbased microscopy, imaging, and spectroscopy. Recently, methods of micro and nanoprocessing of materials by direct fs laser irradiation have aroused great interests in the field of laser processing and have become a powerful micro and nanofabrication technique for different applications 512. Integrated anode structure for passive direct methanol fuel cells with neat methanol operation. Simulation of the intensity and focusing enhancement produced by droplet assisted laser processing. Optical vortex generators for telecom wavelengths with subwavelength patterns of. Arrays of nanoscale lenses for subwavelength optical lithography. Here, we demonstrate how laser catapulting lcp, a recent laser based additive manufacturing technique, enables the preparation of microlenses with controlled. As a lowdimensional optical fiber with diameter close to or below the wavelength of light, optical micronanofiber mnf offers a number of favorable properties for optical sensing, which have been exploited in a variety of sensing applications, including physical, chemical, and biological sensors. We show that a planar plasmonic metamaterial with spatially variable. Here, the spontaneous formation of such lenses is exploited to overcome the diffraction limit of a conventional laser directwriting system. The light reflects on the disk and couples back into the modes of the waveguide. Subwavelength laser nano p atterning using dr oplet.

Notably, the same laser source used for printing can be used for. However, conventional planar optical lenses are constrained by the diffraction limit in the optical farfield due to the bandlimited wavevectors supported by freespace and loss of highspatialfrequency evanescent components. From these variations, the bit information on the disk can be deduced. Geometrycontrollable microoptics with laser catapulting.

In situ printing of liquid superlenses for subdiffractionlimited color. First, we use laserinduced forward transfer lift 23 to print droplets with sizes ranging from 10 to 200. Optical detection and spectroscopy of single absorbers in solids. Abstractwe numerically show that using a planar gradientindex grin microlens it is possible to focus coherent light of wavelength. National science foundation 64 hans tech phase ii award no 1058494 award amount. Memsinthelens architecture for laser scanning microscopy.

A superlens is a lens that uses special materials to go beyond the. Subwavelength focusing metalens tapashree roy, 1 edward t. Towards nanofabrication with uv femtosecond fiber laser draft3. The noncomposite, fully optically isotropic, and lowloss metamaterial, as is proposed here, is very promising for significant future applications including, perfect lenses with resolution beyond optical limits, bandpass filters, frequency multipliers, thz subwavelength resolution imaging systems, and security systems.

A colormap plot of the intensity distribution of a gaussian beam focused through a 0. Formation of polystyrene microlenses via transient droplets from the ouzo effect. The metalenses can resolve nanoscale features separated by subwavelength distances and provide magnification as high as 170. A free lens search tool allows optical engineers to search multiple lens. The lens arrays of different initial focal lengths and apertures can be fabricated by using the droplets of different volumes. Faraon, highly tunable elastic dielectric metasurface lenses, laser photn. First, we use laser induced forward transfer lift 23 to print droplets with sizes ranging from 10 to 200.

A linearly polarized incident beam toptica photonics ag, ibeamsmart405s was first converted to circular polarization using a quarterwaveplate, then expanded by 5 times using a telescope system combination of two confocal convex lenses with focal lengths of 15 mm and 75 mm, and finally illuminated the sol from the substrate side. Laser research optics znse optics have use with medical lasers. Droplet assisted laser processing dalp addresses the challenges encountered in current micro and nanopatterning techniques. Planar optical lenses are fundamental elements of miniaturized photonic devices. Subwavelength focus of light by a planar microlens.

Photonic ic for optical detection with sub wavelength. Individual or arrayed microlenses offer remarkable opportunities in optics and photonics. Planar superoscillatory lens for subdiffraction optical. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. This lensing effect is a combination of the curvature and refractive index of the liquid droplet. Subwavelength laser nanopatterning using droplet lenses. By nanostructuring a gold film we created an array of meta lenses generating foci of 160 nm 0. Collaborative communication and storage for sensor networks in challenging environments 1066391 837322494 res in networking tech. Poly ethylene glycol peg polymer lens arrays are made by using dippen. The liquid lens results in about a factor of 2 intensity enhancement. Partnerships sbirsttr phase ii grantee conference may 9th12th, 2011 baltimore, md preface the small business innovation research sbir program and the small business technology transfer sttr program were conceived at the national science foundation nsf. We attribute the occurrence of sub wavelength hotspots beyond the near field to the phenomenon of superoscillation. Burge, analysis of wavefront propagation using the talbot effect, appl. Laserinduced subwavelength structures by microdroplet.

However, their usage is currently limited by the lack of manufacturing technologies capable of tailoring the lens geometry to target devices. Subwavelength laser nanopatterning using droplet lenses ncbi. Focusing optics collect light transmitted by the subwavelength spot that is. Here we focus light into subwavelength spots with metamaterials, but without making use of negative refraction. In situ printing of liquid superlenses for subdiffraction. Recently it was shown that precisely tailored diffraction of light on a binary mask can create a subwavelength optical hotspot that can be used for optical imaging with resolution far exceeding that of conventional optical instruments 2. Optical angular manipulation of liquid crystal droplets in laser tweezers. Broadband subwavelength imaging using a tunable graphenelens.