Chirp-pulse-compression three-dimensional lidar imager with fiber optics

2005 ◽  
Vol 44 (2) ◽  
pp. 257 ◽  
Author(s):  
Guy N. Pearson ◽  
Kevin D. Ridley ◽  
David V. Willetts
Keyword(s):  
Fiber Optics ◽  
Pulse Compression ◽  
Three Dimensional ◽  
Chirp Pulse

A CO2 laser rangefinder using heterodyne detection and chirp pulse compression

1981 ◽  
Vol 13 (1) ◽  
pp. 35-45 ◽  
Author(s):  
K. F. Hulme ◽  
B. S. Collins ◽  
G. D. Constant ◽  
J. T. Pinson
Keyword(s):  
Co2 Laser ◽  
Pulse Compression ◽  
Heterodyne Detection ◽  
Chirp Pulse ◽  
Laser Rangefinder

scholarly journals Ultrafast nonlocal collective dynamics of Kane plasmon-polaritons in a narrow-gap semiconductor

2019 ◽  
Vol 5 (8) ◽  
pp. eaau9956 ◽  
Author(s):  
A. Charnukha ◽  
A. Sternbach ◽  
H. T. Stinson ◽  
R. Schlereth ◽  
C. Brüne ◽  
...  
Keyword(s):  
Fiber Optics ◽  
Near Field ◽  
Three Dimensional ◽  
Large Momentum ◽  
Light Sources ◽  
New States ◽  
High Bandwidth ◽  
And Control ◽  
2D And 3D ◽  
Plasmon Polaritons

The observation of ultrarelativistic fermions in condensed-matter systems has uncovered a cornucopia of novel phenomenology as well as a potential for effective ultrafast light engineering of new states of matter. While the nonequilibrium properties of two- and three-dimensional (2D and 3D) hexagonal crystals have been studied extensively, our understanding of the photoinduced dynamics in 3D single-valley ultrarelativistic materials is, unexpectedly, lacking. Here, we use ultrafast scanning near-field optical spectroscopy to access and control nonequilibrium large-momentum plasmon-polaritons in thin films of a prototypical narrow-bandgap semiconductor Hg0.81Cd0.19Te. We demonstrate that these collective excitations exhibit distinctly nonclassical scaling with electron density characteristic of the ultrarelativistic Kane regime and experience ultrafast initial relaxation followed by a long-lived highly coherent state. Our observation and ultrafast control of Kane plasmon-polaritons in a semiconducting material using light sources in the standard telecommunications fiber-optics window open a new avenue toward high-bandwidth coherent information processing in next-generation plasmonic circuits.

Three-dimensional surface measurement based on the projected defocused pattern technique using imaging fiber optics

2017 ◽  
Vol 390 ◽  
pp. 57-60 ◽  
Author(s):  
Geliztle A. Parra Escamilla ◽  
Fumio Kobayashi ◽  
Yukitoshi Otani
Keyword(s):  
Fiber Optics ◽  
Three Dimensional ◽  
Surface Measurement ◽  
Dimensional Surface

scholarly journals All-optical three-dimensional electron pulse compression

2015 ◽  
Vol 17 (1) ◽  
pp. 013051 ◽  
Author(s):  
Liang Jie Wong ◽  
Byron Freelon ◽  
Timm Rohwer ◽  
Nuh Gedik ◽  
Steven G Johnson
Keyword(s):  
Pulse Compression ◽  
Three Dimensional ◽  
Electron Pulse ◽  
Dimensional Electron ◽  
All Optical

Fractional Propagation of Short Light Pulses in Monomode Optical Fibers: Comparison of Beta Derivative and Truncated M- Fractional Derivative

2021 ◽  
Author(s):  
Muhammad Bilal Riaz ◽  
Adil Jhangeer ◽  
Jan Awrejcewicz ◽  
Dumitru Baleanu ◽  
Sana Tahir
Keyword(s):  
Fractional Derivative ◽  
Fiber Optics ◽  
Optical Fibers ◽  
Three Dimensional ◽  
Soliton Solutions ◽  
The Other ◽  
Light Pulses ◽  
Free Parameters ◽  
Fractional Orders ◽  
Algebraic Technique

Abstract The present study is dedicated to the computation and analysis of solitonic structures of a nonlinear Sasa-Satsuma equation that comes in handy to understand the propagation of short light pulses in the monomode fiber optics with the aid of Beta Derivative and Truncated M- fractional derivative. We employ new direct algebraic technique for nonlinear Sasa-Satsuma equation to derive novel soliton solutions. A variety of soliton solutions are retrieved in trigonometric, hyperbolic, exponential, rational forms. The vast majority of obtained solutions represent the lead of this method on other techniques. The prime advantage of considered technique over the other techniques is that it provides more diverse solutions with some free parameters. Moreover, the fractional behavior of the obtained solutions is analyzed thoroughly by using two and three dimensional graphs. Which shows that for lower fractional orders i.e $\beta=0.1$, the magnitude of truncated M-fractional derivative is greater whereas for increasing fractional orders i.e $\beta=0.7$ and $\beta=0.99$, magnitude remains same for both definitions except for a phase shift in some spatial domain that eventually vanishes and two curves coincide.

Actively heated fiber optics method to monitor three-dimensional wetting patterns under drip irrigation

2018 ◽  
Vol 210 ◽  
pp. 243-251 ◽  
Author(s):  
D.N. Vidana Gamage ◽  
A. Biswas ◽  
I.B. Strachan
Keyword(s):  
Fiber Optics ◽  
Drip Irrigation ◽  
Three Dimensional
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