Tunable mid-infrared, high-energy femtosecond laser source for glyco-prtein structure analysis

2006 ◽  
Author(s):  
Tomohiro Imahoko ◽  
Zhigang Zhang ◽  
Tetuo Ando ◽  
Koji Yoshida ◽  
Norihiro Inoue ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Structure Analysis ◽  
High Energy ◽  
Laser Source ◽  
Mid Infrared

Tunable mid-infrared, high-energy femtosecond laser source for glyco-protein structure analysis

2007 ◽  
Vol 87 (4) ◽  
pp. 629-634 ◽  
Author(s):  
T. Imahoko ◽  
K. Takasago ◽  
T. Sumiyoshi ◽  
H. Sekita ◽  
K. Takahashi ◽  
...  
Keyword(s):  
Protein Structure ◽  
Femtosecond Laser ◽  
Structure Analysis ◽  
High Energy ◽  
Laser Source ◽  
Protein Structure Analysis ◽  
Mid Infrared

scholarly journals High energy and average power femtosecond laser for driving mid-infrared optical parametric amplifiers

2013 ◽  
Vol 38 (15) ◽  
pp. 2746 ◽  
Author(s):  
P. Malevich ◽  
G. Andriukaitis ◽  
T. Flöry ◽  
A. J. Verhoef ◽  
A. Fernández ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Average Power ◽  
High Energy ◽  
Parametric Amplifiers ◽  
Mid Infrared ◽  
Optical Parametric ◽  
Optical Parametric Amplifiers

scholarly journals An Optical Frequency Domain Angle Measurement Method Based on Second Harmonic Generation

Sensors ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 670
Author(s):  
Wijayanti Dwi Astuti ◽  
Hiraku Matsukuma ◽  
Masaru Nakao ◽  
Kuangyi Li ◽  
Yuki Shimizu ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Second Harmonic Generation ◽  
Frequency Domain ◽  
Harmonic Generation ◽  
Measurement Method ◽  
Second Harmonic ◽  
Angle Measurement ◽  
Laser Source ◽  
Optical Frequency ◽  
Measurable Range

This paper proposes a new optical angle measurement method in the optical frequency domain based on second harmonic generation with a mode-locked femtosecond laser source by making use of the unique characteristic of the high peak power and wide spectral range of the femtosecond laser pulses. To get a wide measurable range of angle measurement, a theoretical calculation for several nonlinear optical crystals is performed. As a result, LiNbO3 crystal is employed in the proposed method. In the experiment, the validity of the use of a parabolic mirror is also demonstrated, where the chromatic aberration of the focusing beam caused the localization of second harmonic generation in our previous research. Moreover, an experimental demonstration is also carried out for the proposed angle measurement method. The measurable range of 10,000 arc-seconds is achieved.

scholarly journals Mid-infrared photoacoustic gas monitoring driven by a gas-filled hollow-core fiber laser

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yazhou Wang ◽  
Yuyang Feng ◽  
Abubakar I. Adamu ◽  
Manoj K. Dasa ◽  
J. E. Antonio-Lopez ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Signal To Noise Ratio ◽  
High Sensitivity ◽  
Laser Source ◽  
High Signal ◽  
Mid Infrared ◽  
Raman Fiber Laser ◽  
Custom Made ◽  
Core Fiber ◽  
Detection Technologies

AbstractDevelopment of novel mid-infrared (MIR) lasers could ultimately boost emerging detection technologies towards innovative spectroscopic and imaging solutions. Photoacoustic (PA) modality has been heralded for years as one of the most powerful detection tools enabling high signal-to-noise ratio analysis. Here, we demonstrate a novel, compact and sensitive MIR-PA system for carbon dioxide (CO2) monitoring at its strongest absorption band by combining a gas-filled fiber laser and PA technology. Specifically, the PA signals were excited by a custom-made hydrogen (H2) based MIR Raman fiber laser source with a pulse energy of ⁓ 18 μJ, quantum efficiency of ⁓ 80% and peak power of ⁓ 3.9 kW. A CO2 detection limit of 605 ppbv was attained from the Allan deviation. This work constitutes an alternative method for advanced high-sensitivity gas detection.

All Solid-State Mid Infrared Laser Source

1997 ◽  
Author(s):  
Ti Chuang ◽  
Ralph Burnham ◽  
R. B. Jones
Keyword(s):  
Solid State ◽  
Infrared Laser ◽  
Laser Source ◽  
Mid Infrared

A chromatic confocal probe with a mode-locked femtosecond laser source

2018 ◽  
Vol 103 ◽  
pp. 359-366 ◽  
Author(s):  
Xiuguo Chen ◽  
Taku Nakamura ◽  
Yuki Shimizu ◽  
Chong Chen ◽  
Yuan-Liu Chen ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Source ◽  
Chromatic Confocal Probe
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