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Terahertz emission from InP photoconductive antenna excited by a 1.56 µm femtosecond fiber laser
2010 Edition, September 1, 2010 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Terahertz (THz) emission property of Fe-implanted InP photoconductive antenna (PCA) has been studied by 1.56 µm wavelength laser excitation. The obtained experimental data by THz time-domain spectroscopy measurements show the...

Dynamic terahertz emission microscope
2010 Edition, September 1, 2010 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

One can observe terahertz (THz) radiation from various kinds of materials, when excited with a femtosecond laser, owing to ultrafast current modulation. THz waves reflect various kinds of properties such as local electric field, particularly ultrafast...

90 nJ energy femtosecond fiber-based chirped-pulse oscillator
2009 Edition, June 1, 2009 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

In recent few years, femtosecond fiber lasers have been developed with ever increasing performances in terms of pulse energy. The energy produced in a mode-locked fibre oscillator has been increased from some nanojoules to several hundreds of nanojoules. This...

Microjoule-level picosecond and femtosecond mode-locked fiber oscillators
2009 Edition, June 1, 2009 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

High-energy and high-average-power ultra-short pulse laser sources have been an interesting research area and among them, fiber-based short-pulse lasers gain increasing interest over the recent decade. Mode-locked fiber lasers have attracted considerable attention...

Energy scalable passively mode-locked mid-IR Tm-fiber laser
2011 Edition, May 1, 2011 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Recently a lot of interest is drawn towards development of high-energy Tm-fiber lasers, operating around 2 µm - an attractive wavelength for LIDAR, ranging and remote-sensing applications, where µJ to mJ pulse energies are required. Such energy frontiers are usually...

Performance of THz-TDS using 1.5 μm femtosecond fiber laser with InP Schottky and DAST emitters
2008 Edition, May 1, 2008 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Terahertz emission properties from photoconductive antenna made of Fe:InP Schottky diode have been studied upon femtosecond fiber laser excitation at a wavelength of 1560 nm in comparison with DAST. The InP emitter generates THz...

Chirped-pulse amplification of an erbium-doped fiber laser at 1.6 µm
2009 Edition, June 1, 2009 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Corneal surgery, among other medical applications, requires femtosecond lasers with energies at the µJ level and emitting in the water transmission window between 1.6 and 1.8 µm. We have recently investigated the chirped-pulse amplification (CPA) of an erbium-doped...

Terahertz radiation from heavy-ion irradiated In/sub 0.35/Ga/sub 0.47/As photoconductive antenna at 1.55 /spl mu/m
2005 Edition, Volume 1, January 1, 2005 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

We measured the terahertz (THz) emission from heavy-ion irradiated In/sub 0.35/Ga/sub 0.47/As photoconductive (PC) antennas excited at 1550 nm. The In/sub 0.35/Ga/sub 0.47/As layer irradiated at 10/sup 12/ cm/sup -2/ shows a carrier lifetime shorter...

ASTM E1617-09(2019) - Standard Practice for Reporting Particle Size Characterization Data
April 1, 2019 - ASTM International

1.1 This practice covers reporting particle size measurement data. 1.2 This practice applies to particle size measurement methods, devices, detail levels, and data formats for dry powders, and wet suspensions of solids, gels, or emulsion droplets. This practice does not pertain to liquid particles....

ASTM C179-14(2019) - Standard Test Method for Drying and Firing Linear Change of Refractory Plastic and Ramming Mix Specimens
April 1, 2019 - ASTM International

3.1 This test method is useful in quantitatively rating or ranking both ramming and refractory plastics by their linear stability after heating. 3.2 This test method is also useful for determining whether a ramming or refractory plastic can be used in a specified application...

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