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While offering unprecedented resolution of atomic and electronic structure, Scanning Probe Microscopy techniques have found greater challenges in providing reliable electrostatic characterization at the same scale. In this work, we…

Patterning graphene into various mesoscopic devices such as nanoribbons, quantum dots, etc. by lithographic techniques has enabled the guiding and manipulation of graphene's Dirac-type charge carriers. Graphene, with well-defined strain…

Mesoscale and Nanoscale Physics · Physics 2017-06-09 Péter Nemes-Incze , Gergő Kukucska , János Koltai , Jenő Kürti , Chanyong Hwang , Levente Tapasztó , László P. Biró

We present a technique to fabricate ultrathin (down to 20 nm) uniform electron transparent windows at dedicated locations in a SiN membrane for in situ transmission electron microscopy experiments. An electron-beam (e-beam) resist is…

Mesoscale and Nanoscale Physics · Physics 2017-09-14 M. Neklyudova , A. K. Erdamar , L. Vicarelli , S. J. Heerema , T. Rehfeldt , G. Pandraud , Z. Kolahdouz , C. Dekker , H. W. Zandbergen

We present a new method for nanoscale atom lithography. We propose the use of a supersonic atomic beam, which provides an extremely high-brightness and cold source of fast atoms. The atoms are to be focused onto a substrate using a thin…

Atomic Physics · Physics 2015-05-18 Robert J. Clark , Thomas R. Mazur , Adam Libson , Mark G. Raizen

We demonstrate the use of frequency-encoded light masks in neutral atom lithography. We demonstrate that multiple features can be patterned across a monotonic potential gradient. Features as narrow as 0.9 microns are fabricated on silicon…

Atomic Physics · Physics 2009-11-07 J. H. Thywissen , M. Prentiss

Electrostatic force microscopy (EFM) can image nanoscale objects buried below the surface. Here, we theoretically show that this capability can be used to obtain nanotomographic information, i.e., the physical dimensions and dielectric…

Instrumentation and Detectors · Physics 2025-02-04 Rene Fabregas , Gabriel Gomila

The rise of micro/nanooptics and lab-on-chip devices demands the fabrication of three-dimensional structures with decent resolution. Here, we demonstrate the combination of grayscale electron beam lithography and direct forming methodology…

Direct-write processes enable the alteration or deposition of materials in a continuous, directable, sequential fashion. In this work we demonstrate an electron beam direct-write process in an aberration-corrected scanning transmission…

Materials Science · Physics 2023-03-22 Ondrej Dyck , Andrew R. Lupini , Stephen Jesse

In the past couple of decades, colloidal inorganic nanocrystals and, more specifically, semiconductor quantum dots have emerged as crucial materials for the development of nanoscience and nanotechnology, with applications in very diverse…

Chemical Physics · Physics 2018-01-08 Francisco Palazon , Mirko Prato , Liberato Manna

We suggest simple model of image formation in atomic force microscope (AFM) taking into account contact deformations of probe and sample during scanning. The model explains the possibility of AFM visualization of regular atomic or molecular…

Materials Science · Physics 2011-07-25 M. O. Gallyamov , I. V. Yaminsky

With a two-dimensional (2D) optical mask, nanoscale patterns are created for the first time in an atom lithography process using metastable helium atoms. The internal energy of the atoms is used to locally damage a hydrofobic resist layer,…

Atomic Physics · Physics 2007-05-23 S. J. H. Petra , K. A. H. van Leeuwen , L. Feenstra , W. Hogervorst , W. Vassen

We developed a process to fabricate nanoscale metallic gate electrodes on scanning probe cantilevers, including on the irregular surface of protruding cantilever tips. The process includes a floating-layer technique to coat the cantilevers…

Instrumentation and Detectors · Physics 2022-09-26 Luca Forrer , Aurèle Kamber , Armin Knoll , Martino Poggio , Floris Braakman

Atomic force microscopy (AFM) is a mechanical profiling technique that allows to image surfaces with atomic resolution. Recent progress in reducing the noise of this technique has led to a resolution level where previously undetectable…

Materials Science · Physics 2015-06-24 F. J. Giessibl , H. Bielefeldt , S. Hembacher , J. Mannhart

We analyze a method for serial writing of arbitrary two-dimensional patterns using optical focusing of a collimated atomic beam. A spatial light modulator is used in a side illumination geometry to create a localized optical spot with…

Atomic Physics · Physics 2011-07-19 W. Williams , M. Saffman

The complex atomic structures and defects of metal-oxide surfaces are vital for a variety of applications in material science and chemistry. While scanning probe microscopy allows accessing atomic-scale structures in real space, elemental…

We propose a new technique for the detection of single atoms in ultracold quantum gases. The technique is based on scanning electron microscopy and employs the electron impact ionization of trapped atoms with a focussed electron probe.…

Statistical Mechanics · Physics 2007-05-23 T. Gericke , C. Utfeld , N. Hommerstad , H. Ott

One exciting progress in recent cold atom experiments is the development of high resolution, in situ imaging techniques for atomic quantum gases [1-3]. These new powerful tools provide detailed information on the distribution of atoms in a…

Quantum Gases · Physics 2014-05-08 Chen-Lung Hung , Cheng Chin

A modified electron beam induced deposition method using a parallel beam of electrons is developed. The method relies on the build-up of surface potential on an insulating surface exposed to an electron beam. Presence of sharp edges on the…

Materials Science · Physics 2009-11-13 Joysurya Basu , C. Barry Carter , R. Divakar , Vijay B. Shenoy , N. Ravishankar

An atomic force microscope is used to structure a film of multilayer graphene. The resistance of the sample was measured in-situ during nanomachining a narrow trench. We found a reversible behavior in the electrical resistance which we…

Mesoscale and Nanoscale Physics · Physics 2008-07-28 P. Barthold , T. Luedtke , R. J. Haug

Scanning transmission electron microscopy (STEM) is the most widespread adopted tool for atomic scale characterization of two-dimensional (2D) materials. Many 2D materials remain susceptible to electron beam damage, despite the standardized…

Materials Science · Physics 2021-08-11 Sytze de Graaf , Majid Ahmadi , Ivan Lazić , Eric G. T. Bosch , Bart J. Kooi
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