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Topic: Picosecond

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	Picosecond Pulse Labs - About Us: Executive Team, Board & Advisors (Site not responding. Last check: 2007-10-23)
		He was elected a Fellow of the IEEE in 1989 being cited for "contributions to picosecond domain pulse techniques and measurements".
		Nahman is an IEEE Fellow elected in 1972 for "Contributions to Time Domain Metrology." In 1978 for the Proceedings of the IEEE, he wrote the seminal paper "Picosecond Domain Waveform Measurements," in which he advocated electrical and optical pulse measurement techniques.
		Nahman is a former Picosecond Vice President, now retired.
	www.picosecond.com /about/exec.shtml (1922 words)

	lsls
		Thus a picosecond and shorter pulse duration turns out to be a prerequisite for the successful use of lasers in advanced scientific applications.
		To define the trailing edge of the pulse thereby shortening it to a few picoseconds, the complement to reflection switching, transmission switching, is used for a second stage.
		The gas medium of the CO laser is free from this limitation; thus a picosecond laser pulse may be amplified directly.
	www.bnl.gov /ATF/ATFstaff/Pogorelsky/paper1.htm (2346 words)

	NationMaster - Encyclopedia: Picosecond (Site not responding. Last check: 2007-10-23)
		The word picosecond is formed by the prefix pico and the unit second.
		In contrast to most picosecond laser flash photolysis systems, the pump and the probe beams are at right angles to each other with sample solution contained in a 1 cm cuvette.
		The methodology of picosecond laser flash photolysis is useful in characterizing singlet and triplet excited states, excited state energy transfer, inter- and intramolecular electron transfer reactions, charge transfer complexation and radical recombination in aqueous and nonaqueous solvents as well as in heterogeneous systems such as colloidal suspensions and thin films.
	www.nationmaster.com /encyclopedia/Picosecond (301 words)

	Physikalisch-Technische Bundesanstalt (PTB)
		Laser pulses with a width of 100fs are focused on the switch to generate picosecond voltage pulses.
		Picosecond voltage pulses are generated in microstructures which are lithographically produced from semiconductor thin films.
		As a first application, the picosecond voltage pulses will be used to calibrate the time response of 50GHz sampling oscilloscopes which become increasingly important for the characterisation of today´s high-speed electronic circuits.
	www.ptb.de /en/publikationen/news/html/news003/artikel/00302.htm (253 words)

	Picosecond Lasers
		Calmar’s picosecond fiber lasers at 780 nm wavelength band provide researchers a powerful tool to explore the areas where 1550nm pulsed lasers do not cover.
		Low timing jitter and low amplitude noise are characteristics of Calmar’s picosecond fiber lasers, and ensure that the quality of the laser output meets even the most stringent test requirements.
		Calmar’s picosecond fiber lasers also provide users with the flexibility to vary the pulse repetition rate over a wide range, and to tune the wavelength from 765 ~ 780 nm region.
	www.calmaropt.com /products_780_PSL.htm (152 words)

	Picosecond sound pulse generation and detection with ultrashort light pulses
		Picosecond sound pulse generation and detection with ultrashort light pulses
		The figures show, in chronological order, how a picosecond sound pulse can be generated and detected in a thin film of metal or semiconductor.
		The electron motion determines the sound pulse duration (about 30 picoseconds) and frequency (about 15 GHz), as was the case for gold.
	kino-ap.eng.hokudai.ac.jp /picoacoustics.html (1100 words)

	CiteULike: Picosecond dynamics of G-protein coupled receptor activation in rhodopsin from time-resolved UV resonance ... (Site not responding. Last check: 2007-10-23)
		Picosecond dynamics of G-protein coupled receptor activation in rhodopsin from time-resolved UV resonance Raman spectroscopy.
		The protein response to retinal chromophore isomerization in the visual pigment rhodopsin is studied using picosecond time-resolved UV resonance Raman spectroscopy.
		These UV Raman spectral changes are nearly identical to those observed for the rhodopsin-to-Meta I transition, implying that impulsively driven protein motion by the isomerizing chromophore during the 200 fs primary transition drives key structural changes that lead to protein activation.
	www.citeulike.org /user/xdeupi/article/681396 (315 words)

	[No title]
		The results of direct measurements of the luminescence decay times of certain dyes are presented, as well as the results of studies of the kinetics of the absorption of light in dense electron-hole plasmas in semiconductors and of the solvation of electrons in solutions.
		The use of the ultrafast optical shutter to investigate the structures of picosecond pulses, to obtain separate photographs of objects lying close together, to look through fog, and to obtain successive photographs at picosecond exposures is described.
		A method of amplifying weak picosecond pulses and recording them on videotape for subsequent display on a kinescope is also described.
	www.turpion.org /php/paper.phtml?journal_id=pu&paper_id=5339 (174 words)

	Nanosecond and Picosecond Pulse Generator - Low cost, fast risetime, capable of a range of precise amplitude and ...
		Our benchtop pulse generators nanosecond and picosecond timing are easy to use and could be used as a precise laser diode driver and triggering source.
		Among numerous applications, the 565 picosecond pulse generator and the 505 nanosecond pulse generator can both be used as laser diode driver and precise laser triggering source.
		In addition to picosecond and nanosecond timing resolution, the Model 505 and 565 have adjustable rep rates of up to 2 MHz and 5 MHz, respectively.
	www.berkeleynucleonics.com /pulsegenerator.html (370 words)

	Picosecond Lasers for Single-Event Effects Testing
		The interaction of a picosecond laser pulse with a semiconductor material can generate a high density of electron-hole pairs (also known as charge carriers), much like the passage of an ionizing particle through the device.
		Although the initial charge profile produced by absorption of a laser pulse is somewhat different from that produced by the interaction of a cosmic ray, both events produce a highly localized trail of charge capable of generating single-event effects in microelectronic devices.
		Aerospace first reported the use of a picosecond laser as a diagnostic tool for understanding the origins of single-event transients in analog devices in 1993.
	www.aero.org /publications/crosslink/summer2003/04.html (3368 words)

	Radiation Laboratory - University of Notre Dame ( Picosecond Laser Flash Photolysis at the NDRL ) (Site not responding. Last check: 2007-10-23)
		Ultrafast spectroscopy is an interdisciplinary area of research that spans various disciplines in chemistry and provides essential information on the mechanistic and kinetic details of chemical events that occur in the timescale of 10 femtoseconds to 100 picoseconds.
		The chemical events in these experiments are initiated by an ultrafast laser pulse (pump) and the photophysical and photochemical events are probed by another ultrafast laser probe pulse.
		The output of the probe pulse is fed to a spectrograph (HR-320, ISDA Instruments, Inc.) via fiber-optic cables and is analyzed with a dual diode array detector (Princeton Instruments, Inc.) interfaced with a computer.
	www.rad.nd.edu /facilities/pico_laser_flash_phot.htm (366 words)

	Picosecond chemical and biological events -- Rentzepis 202 (4364): 174 -- Science
		Picosecond spectroscopy is a relatively new field of science that utilizes ultrashort laser pulses to monitor events taking place in the 10(-12) second regime.
		The continuing development of picosecond spectroscopy has made possible the detection and measurement of the primary events in many physical and tiological processes.
		Two areas of picosecond research are discussed; one concerns the interaction of electrons in fluids, and the second the primary events in vision.
	www.sciencemag.org /cgi/content/abstract/202/4364/174 (238 words)

	Award#0116622 - Development of an all-optical, broadband electron paramagnetic resonance spectrometer with picosecond ... (Site not responding. Last check: 2007-10-23)
		This ultrafast EPR spectrometer will allow the investigators to perform picosecond time-resolved absorption and echo spectroscopy on the formation and decay of triplet states, radicals, and radical ion pairs in both chemical systems and biochemical enzymes.
		The spectrometer will have 10 picosecond temporal resolution, which is three orders of magnitude faster than conventional EPR spectrometers.
		This instrument will require the construction of a high-power picosecond laser system, the generation of optical frequencies by optical parametric generation, the generation of ultrashort microwave pulses by optical rectification, its optical propagation, detection by electro-optic sampling and analysis of the detected microwave signals by advanced signal processing.
	www.fastlane.nsf.gov /servlet/showaward?award=0116622 (188 words)

	TriQuint and Picosecond Pulse Labs demonstrate 43 Gbit/s modulator driver module (February 2002) - News - Compound ...
		Picosecond Pulse Labs, Inc. today announced the development of an advanced 43 Gbit/s lithium niobate modulator driver module for high-speed optical networking applications.
		Picosecond will be demonstrating the driver module in its booth at the 2002 Optical Fiber Conference held March 17-22 in Anaheim, California.
		Picosecond Pulse Labs, Inc., a privately held corporation located in Boulder, CO, is a leading designer and manufacturer of components and test and measurement equipment for high-speed communications systems.
	www.compoundsemiconductor.net /articles/news/6/2/18/1 (493 words)

	Picosecond absorption spectroscopy of NADH, FMN and Rh-123, ABSTRACT (Site not responding. Last check: 2007-10-23)
		Picosecond absorption spectroscopy of NADH, FMN and Rh-123, ABSTRACT
		Picosecond absorption spectroscopy of biologically active pigments NADH, FMN and fluorescence marker Rhodamine-123
		Picosecond time-resolved absorption spectroscopy was used to study excited state dynamics of biologically active pigments: reduced nicotinamide adenine dinucleotide (NADH), flavin mononucleotide (FMN) and the mitochondrial marker Rhodamine -123 (Rh-123).
	www.photobiology.com /photobiology2000/VSitas/ps_abs_sp_index.htm (146 words)

	DesignCon 2006
		Picosecond Pulse Labs, Inc. is a leading designer and manufacturer of instruments, modules, and components for test & measurement and serial communications.
		Picosecond's core competence is generating, receiving, and measuring high-speed analog signals.
		The Picosecond Pulse Labs' Model 4005 5 ps Pulse Calibration Source was designed specifically for the purpose of calibrating Real Time and Digital Sampling Oscilloscopes.
	www.designcon.com /2006/exhibition/ht_picosecond.html (394 words)

	Picosecond imaging circuit analysis
		The method, denoted as picosecond imaging circuit analysis (PICA) can be used to characterize the gate-level performance of such chips and identify the locations and nature of their operational faults.
		In the next section, we describe how the picosecond time dependence of the intensity of the switching-induced optical emission can be measured with such weak optical signals.
		We have covered the use of picosecond imaging circuit analysis for investigating the switching activity in fully functional silicon CMOS integrated circuits.
	www.research.ibm.com /journal/rd/444/tsang.html (10714 words)

	(Hotline) Lasers Ablate with No Melt Phase
		Picosecond lasers suited for micromachining operations produce a minimal heat-affected zone while ablating material.
		Owing to their low average power and pulse energy, these picosecond lasers are configured for micromachining materials with thicknesses of 1 ml or less.
		There are many advantages of picosecond lasers over nanosecond lasers, according to Ratermann.
	www.devicelink.com /mpmn/archive/06/06/003.html (312 words)

	Picosecond time-resolved resonance Raman studies of hemoglobin: implications for reactivity -- Findsen et al. 229 ...
		Picosecond time-resolved resonance Raman studies of hemoglobin: implications for reactivity -- Findsen et al.
		Simon SR Picosecond time-resolved Raman spectra of hemoglobin generated with blue pulses (20 to 30 picoseconds) that were resonant with the Soret band and of sufficient intensity to completely photodissociate the starting liganded sample are reported.
		For both R- and T-state liganded hemoglobins, the peak frequencies in the spectrum of the deoxy transient were the same at approximately 25 picoseconds as those observed at 10 nanoseconds subsequent to photodissociation.
	www.sciencemag.org /cgi/content/abstract/229/4714/661 (504 words)

	Amazon.com: picosecond (Site not responding. Last check: 2007-10-23)
		Picosecond Phenomena: The Second International Conference on Picosecond Phenomena (Springer Series in Chemical Physics) by Mass International Conference on Picosecond Phenomena 1980 Falmouth, R. Hochstrasser, W. Kaiser, and C. Shank (Hardcover - Oct 1980)
		Picosecond Electronics and Optoelectronics: Proceedings of the Topical Meeting Lake Tahoe, Nevada, March 1 (Springer Series in Electronics and Photonics) by G. Mourou, David M. Bloom, and C. Lee (Hardcover - Dec 1985)
		Picosecond Electronics and Optoelectronics: Proceedings of the Topical Meeting, Lake Tahoe, Nevada, March 13-15, 1985 (Springer Series in Electronics and Photonics) by Gerard A. Mourou, David M. Bloom, and Chi-H. Lee (Hardcover - Dec 14, 1988)
	www.amazon.com /s?ie=UTF8&keywords=picosecond&tag=icongroupinterna&index=blended&link_code=qs&page=1 (378 words)

	picosecondATE provides electronic components for the test and measurement industry. (Site not responding. Last check: 2007-10-23)
		provides static protection, picosecond microwave switch units, and PG 100 pulse generators for the test and measurement industry.
		Besides providing products for the picosecond measurement industry, picosecondATE also operates a custom design and manufacturing facility for product test and life-cycle equipment.
		Please contact us if you would like more information about picosecondATE.
	www.picosecondate.com (62 words)

	Broadband Driver suits optical networking applications., Picosecond Pulse Labs, Inc
		Picosecond will be demonstrating the driver module in its booth at the 2002 Optical Fiber Conference held March 17-22 in Anaheim, California.
		Picosecond's has designed a module product that fully captures the high performance capability of these leading edge MMIC devices.
		Picosecond Pulse Labs, Inc., a privately held corporation located in Boulder, CO, is a leading designer and manufacturer of components and test and measurement equipment for high-speed communications systems.
	news.thomasnet.com /fullstory/8095 (1063 words)

	Picosecond Pulsed Laser Diodes Perfect Match Picosecond Pulsed Laser Diodes
		Picosecond Laser Diode Systems new LDH 400 and LDH 440, violet picosecond pulsed diode laser head (390 to 415 nm and 435 to - Laser Diode Modules.
		Picosecond Pulsed Ultraviolet and NIR Laser Diodes company is now offering two new NIR laser diodes emitting picosecond pulses at 785 and 830 nm
		PicoQuant Releases New Aqua Marine Picosecond Pulsed Diode Laser new 470 nm picosecond pulsed diode laser.
	www.just-lasers.com /Picosecond-Pulsed-Laser-Diodes.html (269 words)

	PicoQuant: Pulsed Lasers and Light Sources: Picosecond Diode Laser PDL 800-B
		The PDL 800-B is a stand-alone driver for the picosecond ultra violet to red (375 to 1550 nm) diode laser heads as well as for the sub-nanosecond LEDs (260 to 600 nm).
		For multiple wavelengths experiments the PDL 808 "Sepia" is recommended, for automated systems the computer controlled multi-channel PDL 828 "Sepia II" is the best choice.
		Picosecond pulsed diode laser modules are also available in OEM quantities for system suppliers.
	www.picoquant.com /products/pdl800b/pdl800b.htm (358 words)

	THz Science & Technology Network » Archive » Picosecond Pulse Labs
		Picosecond Pulse Labs designs and manufactures instruments, modules, and components for test & measurement and serial communications.
		Picosecond’s customers include communications systems and test equipment manufacturers, universities, and research labs.
		This was posted on Saturday, January 1st, 2005 at 5:00 pm and is filed under North America, Test Equipment.
	www.thznetwork.org /wordpress/index.php/archives/51 (137 words)

	Picosecond-Hetero-FRET Microscopy to Probe Protein-Protein Interactions in Live Cells -- Tramier et al. 83 (6): 3570 -- ...
		A picosecond Ti:Sa laser after pulse picker and frequency doubling delivered 4 MHz repetitive rate pulses at a tunable 380-495 nm wavelength.
		dimer by acquisition of picosecond fluorescence decays of the
		-CFP and TK -YFP by picosecond fluorescence decay microscopy.
	www.biophysj.org /cgi/content/full/83/6/3570 (4899 words)

	Microscopic imaging in picosecond freeze-frames
		Ultrafast scanning probe microscopy, as the new imaging process is called, promises to give researchers the ability to look at atoms in the time frames at which atomic scale phenomena unfold.
		First describing their efforts in the November 1, 1993 issue of Applied Physics Letters, the researchers report that they have obtained images with simultaneous two picosecond and 50 angstrom resolution.
		They will capture moments that are measured in picoseconds, or trillionths of a second.
	www.lbl.gov /Science-Articles/Archive/ultrafast-microscopy.html (941 words)

	[No title]
		The amount of time it would take a beam of light to travel through the line that makes up this fishing net in Bahia de Los Angeles, Mexico--one picosecond.
		The average lifetime of a hydrogen bond between water molecules in 25° centigrade water is 3 picoseconds.
		Some scientists believe that quantum mechanics demands that once every picosecond the atoms of the bonded water molecules swap protons.
	www.powersof10.com /powers/station_detail.php?station_id=122 (66 words)

	The Self-Injected Laser for Picosecond Time-Resolved Spectroscopy
		The principles of operation and the characteristics of the self-injected picosecond laser are presented.
		We show that in spite of its simple design our device is able to generate very high power pulses in the picosecond domain.
		This warrants the use of this laser for time resolved spectroscopy in the picosecond domain.
	www.hindawi.com /GetArticle.aspx?doi=10.1155/LC.3.223&e=cta (126 words)

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