scholarly journals Subwavelength Nanostructuring of Gold Films by Apertureless Scanning Probe Lithography Assisted by a Femtosecond Fiber Laser Oscillator

Nanomaterials ◽  
2018 ◽  
Vol 8 (7) ◽  
pp. 536 ◽  
Author(s):  
Ignacio Falcón Casas ◽  
Wolfgang Kautek
Keyword(s):  
Fiber Laser ◽  
Near Field ◽  
Diffraction Limit ◽  
High Repetition Rate ◽  
Scanning Probe ◽  
Optical Methods ◽  
Laser Source ◽  
Gold Films ◽  
Laser Oscillator ◽  
Scanning Probe Lithography

Optical methods in nanolithography have been traditionally limited by Abbe’s diffraction limit. One method able to overcome this barrier is apertureless scanning probe lithography assisted by laser. This technique has demonstrated surface nanostructuring below the diffraction limit. In this study, we demonstrate how a femtosecond Yb-doped fiber laser oscillator running at high repetition rate of 46 MHz and a pulse duration of 150 fs can serve as the laser source for near-field nanolithography. Subwavelength features were generated on the surface of gold films down to a linewidth of 10 nm. The near-field enhancement in this apertureless scanning probe lithography setup could be determined experimentally for the first time. Simulations were in good agreement with the experiments. This result supports near-field tip-enhancement as the major physical mechanisms responsible for the nanostructuring.

Surface-Plasmons-Assisted Nanoscale Photolithography

2005 ◽  
Author(s):  
Dongbing Shao ◽  
Shaochen Chen
Keyword(s):  
Low Cost ◽  
Near Field ◽  
Optical Diffraction ◽  
Scanning Probe ◽  
Fabrication Technology ◽  
Scanning Probe Lithography ◽  
Low Contrast ◽  
The Past ◽  
Wavelength Scale ◽  
Sub Wavelength

Photolithography has remained a useful micro-fabrication technology because of its high throughput, low cost, simplicity, and reproducibility over the past several decades. However its resolution is limited at a sub-wavelength scale due to optical diffraction. Among all different approaches to overcoming this problem, such as electron-beam lithography, imprint lithography and scanning probe lithography, near-field optical lithography inherits many merits of the traditional photolithography method. Major drawbacks of this approach include low contrast, low transmission and low density.

Near-field imaging of surface plasmon on gold nano-dots fabricated by scanning probe lithography

2003 ◽  
Vol 209 (3) ◽  
pp. 236-240 ◽  
Author(s):  
J. Kim ◽  
J. Kim ◽  
K. I.-B. Song ◽  
S. Q. Lee ◽  
E. U. N.-K. Kim ◽  
...  
Keyword(s):  
Surface Plasmon ◽  
Near Field ◽  
Scanning Probe ◽  
Scanning Probe Lithography ◽  
Near Field Imaging ◽  
Field Imaging

Material micromachining using bursts of high repetition rate picosecond pulses from a fiber laser source

2011 ◽  
Author(s):  
Pascal Deladurantaye ◽  
Alain Cournoyer ◽  
Mathieu Drolet ◽  
Louis Desbiens ◽  
Dany Lemieux ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Repetition Rate ◽  
High Repetition Rate ◽  
Laser Source ◽  
Picosecond Pulses ◽  
High Repetition

scholarly journals Femtosecond laser bone ablation with a high repetition rate fiber laser source

2014 ◽  
Vol 6 (1) ◽  
pp. 32 ◽  
Author(s):  
Luke J. Mortensen ◽  
Clemens Alt ◽  
Raphaël Turcotte ◽  
Marissa Masek ◽  
Tzu-Ming Liu ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Fiber Laser ◽  
Repetition Rate ◽  
High Repetition Rate ◽  
Laser Source ◽  
High Repetition

scholarly journals Fiber laser technologies for photoacoustic microscopy

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Long Jin ◽  
Yizhi Liang
Keyword(s):  
Fiber Laser ◽  
Photoacoustic Imaging ◽  
Beam Quality ◽  
Biological Tissues ◽  
High Energy ◽  
Industrial Applications ◽  
High Repetition Rate ◽  
Low Noise ◽  
Laser Source ◽  
Photoacoustic Microscopy

AbstractFiber laser technology has experienced a rapid growth over the past decade owing to increased applications in precision measurement and optical testing, medical care, and industrial applications, including laser welding, cleaning, and manufacturing. A fiber laser can output laser pulses with high energy, a high repetition rate, a controllable wavelength, low noise, and good beam quality, making it applicable in photoacoustic imaging. Herein, recent developments in fiber-laser-based photoacoustic microscopy (PAM) are reviewed. Multispectral PAM can be used to image oxygen saturation or lipid-rich biological tissues by applying a Q-switched fiber laser, a stimulated Raman scattering-based laser source, or a fiber-based supercontinuum source for photoacoustic excitation. PAM can also incorporate a single-mode fiber laser cavity as a high-sensitivity ultrasound sensor by measuring the acoustically induced lasing-frequency shift. Because of their small size and high flexibility, compact head-mounted, wearable, or hand-held imaging modalities and better photoacoustic endoscopes can be enabled using fiber-laser-based PAM.

Hybrid CARS spectroscopy based on a high-repetition-rate all-PM-fiber laser source

2020 ◽  
Vol 117 (8) ◽  
pp. 081103
Author(s):  
Tao Cao ◽  
Jikun Yan ◽  
Yu Chen ◽  
Le Huang ◽  
Ziyue Guo ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Repetition Rate ◽  
High Repetition Rate ◽  
Laser Source ◽  
High Repetition

Fiber laser source/analyzer for Bragg grating sensor array interrogation

1994 ◽  
Vol 12 (4) ◽  
pp. 700-703 ◽  
Author(s):  
G.A. Ball ◽  
W.W. Morey ◽  
P.K. Cheo
Keyword(s):  
Fiber Laser ◽  
Sensor Array ◽  
Laser Source ◽  
Bragg Grating ◽  
Bragg Grating Sensor
Sign in / Sign up

Export Citation Format

Share Document