Focused-ion-beam overlay-patterning of three-dimensional diamond structures for advanced single-photon properties

Sources of single photons are of fundamental importance in many applications as to provide quantum states for quantum communication and quantum information processing. Color centers in diamond are prominent candidates to generate and manipulate quantum states of light, even at room temperature. Howe...

Full description

Saved in:
Bibliographic Details
Published in:Journal of applied physics 2014-07, Vol.116 (4)
Main Authors: Jiang, Qianqing, Liu, Dongqi, Liu, Gangqin, Chang, Yanchun, Li, Wuxia, Pan, Xinyu, Gu, Changzhi
Format: Article
Language:English
Subjects:
Applied physics
Collection
COLOR CENTERS
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Data processing
DIAMONDS
EFFICIENCY
INTERFACES
ION BEAMS
MONOCRYSTALS
Morphology
NANOSTRUCTURES
PERIODICITY
PHOTONS
QUANTUM INFORMATION
Quantum phenomena
QUANTUM STATES
Quantum theory
REFRACTION
Shape control
SIGNAL-TO-NOISE RATIO
SOLIDS
Submerging
SUBSTRATES
SURFACES
TEMPERATURE RANGE 0273-0400 K
THREE-DIMENSIONAL CALCULATIONS
VISIBLE RADIATION
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Sources of single photons are of fundamental importance in many applications as to provide quantum states for quantum communication and quantum information processing. Color centers in diamond are prominent candidates to generate and manipulate quantum states of light, even at room temperature. However, the efficiency of photon collection of the color centers in bulk diamond is greatly reduced by refraction at the diamond/air interface. To address this issue, diamond structuring has been investigated by various methods. Among them, focused-ion-beam (FIB) direct patterning has been recognized as the most favorable technique. But it has been noted that diamond tends to present significant challenges in FIB milling, e.g., the susceptibility of forming charging related artifacts and topographical features. In this work, periodically-positioned-rings and overlay patterning with stagger-superimposed-rings were proposed to alleviate some problems encountered in FIB milling of diamond, for improved surface morphology and shape control. Cross-scale network and uniform nanostructure arrays have been achieved in single crystalline diamond substrates. High quality diamond solid immersion lens and nanopillars were sculptured with a nitrogen-vacancy center buried at the desired position. Compared with the film counterpart, an enhancement of about ten folds in single photon collection efficiency was achieved with greatly improved signal to noise ratio. All these results indicate that FIB milling through over-lay patterning could be an effective approach to fabricate diamond structures, potentially for quantum information studies.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.4891022