Experimental investigation of optical breakdown using nanosecond 532-nm and 1064-nm laser pulses delivered at high numerical aperture

2001 ◽  
Author(s):  
Arnold Guerra III ◽  
Vasan Venugopalan ◽  
Kester Nahen ◽  
Alfred Vogel
Keyword(s):  
Experimental Investigation ◽  
Numerical Aperture ◽  
Optical Breakdown ◽  
Laser Pulses ◽  
High Numerical Aperture ◽  
532 Nm

Enhanced spectral broadening of short laser pulses in high-numerical-aperture holey fibers

2001 ◽  
Vol 73 (2) ◽  
pp. 181-184 ◽  
Author(s):  
A.B. Fedotov ◽  
A.M. Zheltikov ◽  
A.P. Tarasevitch ◽  
D. von der Linde
Keyword(s):  
Numerical Aperture ◽  
Laser Pulses ◽  
Spectral Broadening ◽  
High Numerical Aperture ◽  
Short Laser Pulses

INTRACELLULAR MANIPULATION BY FEMTOSECOND LASERS: REVIEW

2009 ◽  
Vol 02 (01) ◽  
pp. 1-8 ◽  
Author(s):  
WATARU WATANABE ◽  
SACHIHIIRO MATSUNAGA ◽  
KIICHI FUKUI ◽  
KAZUYOSHI ITOH
Keyword(s):  
Femtosecond Laser ◽  
Femtosecond Lasers ◽  
Numerical Aperture ◽  
Laser Pulses ◽  
Living Cells ◽  
Femtosecond Laser Pulses ◽  
Multiphoton Absorption ◽  
High Numerical Aperture ◽  
Recent Advances

Multiphoton absorption of femtosecond laser pulses focused through an objective with high numerical aperture (NA) can be used to image and manipulate cellular and intracellular objects. This review highlights recent advances in intracellular manipulation, including nanosurgery and labeling in living cells with femtosecond lasers.

scholarly journals Femtosecond-Laser Assisted Surgery of the Eye: Overview and Impact of the Low-Energy Concept

Micromachines ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 122
Author(s):  
Catharina Latz ◽  
Thomas Asshauer ◽  
Christian Rathjen ◽  
Alireza Mirshahi
Keyword(s):  
Surgical Techniques ◽  
Numerical Aperture ◽  
Optical Breakdown ◽  
Pulse Frequency ◽  
Low Energy ◽  
Human Cornea ◽  
Energy Concept ◽  
High Pulse Frequency ◽  
Fs Laser ◽  
High Pulse

This article provides an overview of both established and innovative applications of femtosecond (fs)-laser-assisted surgical techniques in ophthalmology. Fs-laser technology is unique because it allows cutting tissue at very high precision inside the eye. Fs lasers are mainly used for surgery of the human cornea and lens. New areas of application in ophthalmology are on the horizon. The latest improvement is the high pulse frequency, low-energy concept; by enlarging the numerical aperture of the focusing optics, the pulse energy threshold for optical breakdown decreases, and cutting with practically no side effects is enabled.

scholarly journals Focal Surface Detection of High Numerical Aperture Objective Lens Based on Differential Astigmatic Method

2021 ◽  
Vol 13 (4) ◽  
pp. 1-8
Author(s):  
Jia-Lin Du ◽  
Wei Yan ◽  
Li-Wei Liu ◽  
Fan-Xing Li ◽  
Fu-Ping Peng ◽  
...  
Keyword(s):  
Numerical Aperture ◽  
Objective Lens ◽  
High Numerical Aperture ◽  
Surface Detection ◽  
Focal Surface

High-numerical-aperture silica core fibers

2004 ◽  
Author(s):  
Bolesh J. Skutnik ◽  
Brian Foley ◽  
Kelly B. Moran
Keyword(s):  
Numerical Aperture ◽  
High Numerical Aperture ◽  
Silica Core

Aberration-free optical refocusing in high numerical aperture microscopy

2007 ◽  
Vol 32 (14) ◽  
pp. 2007 ◽  
Author(s):  
Edward J. Botcherby ◽  
Rimas Juskaitis ◽  
Martin J. Booth ◽  
Tony Wilson
Keyword(s):  
Numerical Aperture ◽  
High Numerical Aperture
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