Infrared laser system

We discuss past and recent progress of our continuing project of submillimetre-wave spectroscopic investigations of H 2 D + and D 2 H + . Three new lines of H 2 D + in the 2.5–3.5 THz range are measured with a tunable far-infrared laser system. Since these molecules are very light asymmetric molecules, analysis based on a conventional effective Hamiltonian is not very useful in predicting the transition frequencies to the accuracy of the order of several MHz or better. In this respect, any addition of new accurate measurements of transition frequencies is important. In this paper, some discussions will be made on and its deuterated species as probable interstellar species in cold dark clouds. In particular, , which is predicted to be abundant in cold dark clouds, can be (indirectly) detected by observing .

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Development of tunable femtosecond infrared laser system and it's applications

The Review of Laser Engineering ◽

10.2184/lsj.34.49 ◽

2006 ◽

Vol 34 (Supplement) ◽

pp. 49-50

Author(s):

Tomohiro Imahoko ◽

Kazuya Takasago ◽

Tetsumi Sumiyoshi ◽

Hitoshi Sekita ◽

Katsutoshi Takahashi ◽

...

Keyword(s):

Laser System ◽

Infrared Laser

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Research of Pain Stimulus Induced by Dual-Wavelength Infrared Laser System

Chinese Journal of Lasers ◽

10.3788/cjl201542.0104002 ◽

2015 ◽

Vol 42 (1) ◽

pp. 0104002

Author(s):

穆志明 Mu Zhiming ◽

杨基春 Yang Jichun ◽

董晓曦 Dong Xiaoxi ◽

胡勇 Hu Yong ◽

金文东 Jin Wendong ◽

...

Keyword(s):

Laser System ◽

Infrared Laser ◽

Dual Wavelength ◽

Pain Stimulus

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Beam properties of fully optimized, table-top, coherent source at 30 nm

Opto-Electronics Review ◽

10.2478/s11772-011-0003-9 ◽

2011 ◽

Vol 19 (2) ◽

Cited By ~ 2

Author(s):

K. Jakubczak ◽

T. Mocek ◽

B. Rus ◽

J. Polan ◽

J. Hrebicek ◽

...

Keyword(s):

Near Infrared ◽

Extreme Ultraviolet ◽

Focal Length ◽

Laser System ◽

Spatial Coherence ◽

Laser Pulses ◽

Infrared Laser ◽

Gas Cell ◽

Transmission Grating ◽

High Order Harmonic

AbstractWe present results on development and experimental implementation of a 1-kHz, coherent extreme ultraviolet (XUV) radia- tion source based on high-order harmonic generation of the femtosecond, near-infrared laser pulses produced by the titanium-doped sapphire laser system (35 fs, 1.2 mJ, 810 nm) at the Institute of Physics AS CR / PALS Centre. The source comprises a low-density static gas cell filled with a conversion medium, typically argon. The comprehensive optimization of the XUV harmonic source has been performed with respect to major parameters such as gas pressure in the cell, cell length, position of the focus of the driving laser field with respect to the gas cell position, size of the driving near-infrared laser beam, chirp of the femtosecond pulse, and the focal length of the lens deployed in the experimental setup. Harmonic spectra were recorded using an XUV transmission grating spectrometer developed specifically for this purpose. Detailed characterization of the XUV source has been performed including measurement of the XUV beam profile, M2 parameter of the beam, absolute energy, and spatial coherence.

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