TY - GEN
T1 - Photonic nanojet properties of dielectric microcylinders
AU - Darafsheh, Arash
AU - Bollinger, Douglas
N1 - Funding Information:
This work was supported by the National Institute of General Medical Sciences of the National Institutes of Health (R41GM117844). The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.
Publisher Copyright:
© 2017 SPIE.
PY - 2017
Y1 - 2017
N2 - In recent years, it has been demonstrated that micron-scale dielectric spheres and cylinders can form an intense sharply focused photon beam, termed a photonic nanojet. The photonic nanojet effect can be used in a broad range of biomedical and photonics applications, including super-resolution microscopy, optical endoscopy, spectroscopy, and nanolithography. In this work, by means of finite-difference time-domain (FDTD) numerical simulation, we studied the nanojet properties of dielectric microcylinders over a wide range of diameters (4λ-20λ) and refractive indices (1.5-2.0), where λ is the wavelength of light. We studied how the nanojet beam size, intensity, and focal distance vary as a function of size and refractive index of the microcylinders, and refractive index contrast between the microcylinders and the background medium surrounding them.
AB - In recent years, it has been demonstrated that micron-scale dielectric spheres and cylinders can form an intense sharply focused photon beam, termed a photonic nanojet. The photonic nanojet effect can be used in a broad range of biomedical and photonics applications, including super-resolution microscopy, optical endoscopy, spectroscopy, and nanolithography. In this work, by means of finite-difference time-domain (FDTD) numerical simulation, we studied the nanojet properties of dielectric microcylinders over a wide range of diameters (4λ-20λ) and refractive indices (1.5-2.0), where λ is the wavelength of light. We studied how the nanojet beam size, intensity, and focal distance vary as a function of size and refractive index of the microcylinders, and refractive index contrast between the microcylinders and the background medium surrounding them.
KW - Diffraction
KW - FDTD
KW - Focusing
KW - Microcylinder
KW - Photonic nanojet
UR - http://www.scopus.com/inward/record.url?scp=85020269029&partnerID=8YFLogxK
U2 - 10.1117/12.2252758
DO - 10.1117/12.2252758
M3 - Conference contribution
AN - SCOPUS:85020269029
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Integrated Optics
A2 - Conti, Gualtiero Nunzi
A2 - Garcia-Blanco, Sonia M.
PB - SPIE
T2 - Integrated Optics: Devices, Materials, and Technologies XXI 2017
Y2 - 30 January 2017 through 1 February 2017
ER -