Published December 8, 2014
| Version v1
Journal article
Nanometer-thick flat lens with adjustable focus
Creators
- 1. Département de Physique et d'Astronomie, Université de Moncton, Moncton, New Brunswick, E1A 3E9 (Canada)
- 2. Centre Optique, Photonique et Laser (COPL) and Pavillon d'Optique-Photonique, Université Laval, Québec, Québec G1V 0A6 (Canada)
Description
We report laser beam focusing by a flat, homogeneous film with a thickness of less than 100 nm. The effect relies on refractive index changes occurring in vanadium dioxide as it undergoes a phase transition from insulator to metal. Phase front curvature is achieved by means of temperature gradients, and adjustable focal lengths from infinity to 30 cm are attained
Additional details
Identifiers
- DOI
- 10.1063/1.4903887;
Publishing Information
- Journal Title
- Applied Physics Letters
- Journal Volume
- 105
- Journal Issue
- 23
- Journal Page Range
- p. 231120-231120.4
- ISSN
- 0003-6951
- CODEN
- APPLAB
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 46101147
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- LENSES; METALS; PHASE TRANSFORMATIONS; REFRACTIVE INDEX; TEMPERATURE DEPENDENCE; TEMPERATURE GRADIENTS; THICKNESS; THIN FILMS; VANADIUM OXIDES
- Descriptors DEC
- CHALCOGENIDES; DIMENSIONS; ELEMENTS; FILMS; OPTICAL PROPERTIES; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; TRANSITION ELEMENT COMPOUNDS; VANADIUM COMPOUNDS
Optional Information
- Notes
- (c) 2014 AIP Publishing LLC