Laser Modes in Diamond

1995 ◽  
pp. 187-206
Author(s):  
L.-T. S. Lin ◽  
M. A. Prelas ◽  
Galina Popovici
Keyword(s):  
Laser Modes

Synchronization of gas-laser modes during modulation of the dielectric constant of the medium

1970 ◽  
Vol 13 (8) ◽  
pp. 997-1001
Author(s):  
Yu. P. Egorov ◽  
A. S. Petrov
Keyword(s):  
Dielectric Constant ◽  
Gas Laser ◽  
Laser Modes

Finite Difference Time Domain Simulations of Hybrid Neurotransducers Based Optical Microlasers

2020 ◽  
Author(s):  
Maurizio Manzo ◽  
Omar Cavazos
Keyword(s):  
Finite Difference ◽  
Chronic Traumatic Encephalopathy ◽  
Numerical Technique ◽  
Well Being ◽  
Infrared Light ◽  
Neuron Activity ◽  
Living Matter ◽  
Brain Functions ◽  
Laser Modes ◽  
The Brain

Abstract Different pathologies such as Alzheimer’s, Parkinson’s, Wilson’s diseases, and chronic traumatic encephalopathy due to blasts and impacts affect the brain functions altering the neuronal electrical activity. An important aspect of the brain study is the use of non-invasive, non-surgical methodologies that are suitable to the well-being of the patients. Only a portion of the electromagnetic field can be detected by applying sensors outside the scalp; in addition, surgery is often involved if sensors are applied in the subcutaneous region of the skull. Optical techniques applied to biomedical research and diagnostics have been spread during the last decades. For example, near infrared light (NIR) of spectral range goes from 800 nm to 1300 nm, it is harmless radiation for the living tissue, and can penetrate the living matter in depth as, it turns out that most of the living matter is transparent to the NIR light. Optical microlasers have been recently proposed as neurotransducers for minimally invasive neuron activity detection for the next generation of brain-computer interface (BCI) systems. They are lightweight, require low power consumption and exhibit low latency. This novel sensor that can be made of biocompatible material is coupled with a voltage sensitive dye; the fluorescence of the dye, which is excited by an external light source, is used to generate optical (laser) modes. Any variation in the neurons’ membrane electric potential via evanescent field’s perturbation turn affect the shifting of these laser modes. In order to reduce the energy required to power these devices and to improve their optical emission, metal nanoparticles can be coupled in order to use their plasmonic effect. In this paper, finite-difference timedomain (FDTD) numerical technique is used to analyze the performances on a dye-doped microlaser. Purcell effect and resonant wavelengths are observed.

Laser modes in the presence of an absorbing impurity

1966 ◽  
Vol 8 (2) ◽  
pp. 294-296 ◽  
Author(s):  
N. D. Voropaev ◽  
A. N. Oraevskii
Keyword(s):  
Laser Modes

scholarly journals Anticompetition Between Laser Modes in Quantum-Dot Laser

2007 ◽  
Vol 19 (12) ◽  
pp. 889-891 ◽  
Author(s):  
Yi-Shin Su ◽  
Ding-I Chiang ◽  
Ching-Fuh Lin
Keyword(s):  
Quantum Dot ◽  
Quantum Dot Laser ◽  
Laser Modes

scholarly journals Cellular Features Revealed by Transverse Laser Modes in Frequency Domain

2021 ◽  
pp. 2103550
Author(s):  
Zhen Qiao ◽  
Hongmei Xu ◽  
Na Zhang ◽  
Xuerui Gong ◽  
Chaoyang Gong ◽  
...  
Keyword(s):  
Frequency Domain ◽  
Laser Modes

scholarly journals Hong-Ou-Mandel interference of unconventional temporal laser modes

2020 ◽  
Vol 28 (14) ◽  
pp. 20943
Author(s):  
Sascha Agne ◽  
Jeongwan Jin ◽  
Katanya B. Kuntz ◽  
Filippo M. Miatto ◽  
Jean-Philippe Bourgoin ◽  
...  
Keyword(s):  
Laser Modes

Transient Dynamics of Coherent Waves Released from Quantum Billiards and Analogous Observation from Free-Space Propagation of Laser Modes

2009 ◽  
Vol 102 (4) ◽  
Author(s):  
C. C. Chen ◽  
Y. T. Yu ◽  
Ross C. C. Chen ◽  
Y. J. Huang ◽  
K. W. Su ◽  
...  
Keyword(s):  
Free Space ◽  
Transient Dynamics ◽  
Laser Modes

Diffractive optical elements for intra-cavity beam-shaping of laser modes

2000 ◽  
Vol 47 (13) ◽  
pp. 2421-2435 ◽  
Author(s):  
K. Ballüder ◽  
M. R. Taghizadeh ◽  
H. A. McInnes ◽  
T. H. Bett
Keyword(s):  
Beam Shaping ◽  
Diffractive Optical Elements ◽  
Optical Elements ◽  
Laser Modes
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