The primary manufacturers of excimer laser light sources in the 1980s were Lambda Physik ( now part of Coherent, Inc .) and Lumonics, but since the mid-1990s Cymer Inc. has become the dominant supplier of excimer laser sources to the lithography equipment manufacturers.

Coherent light emission from a semiconductor ( gallium arsenide ) diode ( the first laser diode ) was demonstrated in 1962 by two US groups led by Robert N. Hall at the General Electric research center and by Marshall Nathan at the IBM T. J. Watson Research Center.

* Coherent perfect absorber, a device which absorbs coherent light and converts it to some form of internal energy such as heat or electrical energy

* Coherent ( company ), a company specializing in equipment to make and measure coherent light

* Coherent backscattering is observed in random media ; for visible light most typically in suspensions like milk.

Coherent light generally must be treated with Jones calculus because the latter works with amplitude rather than intensity of light.

Coherent control is a quantum mechanical based method for controlling dynamical processes with light, employing quantum interference phenomena which are controlled by shaping the phase of laser pulses.

Examples of facilities operating on the SASE FEL principle include the Free electron LASer ( FLASH ) in Hamburg, the Linac Coherent Light Source ( LCLS ) at the SLAC National Accelerator Laboratory, the European x-ray free electron laser ( XFEL ) in Hamburg, the SPring-8 Compact SASE Source ( SCSS ), the SwissFEL at the Paul Scherrer Institute ( Switzerland ) and, as of 2011, the SACLA at the RIKEN Harima Institute in Japan.

The IEEE Std 1596-1992, IEEE Standard for Scalable Coherent Interface ( SCI ) was approved by the IEEE standards board on March 19, 1992.

The Coherent operating system was a Version 7 Unix clone by the now-defunct Mark Williams Company, originally produced for the PDP-11 in 1980.

Coherent was able to run on most Intel-based PCs with Intel 8088, 286, 386, and 486 processors.

Like a true Unix, Coherent was able to multitask and support multiple users.

A Zilog Z8000 port of Coherent was also used by the canceled Commodore 900 system.

Coherent was not Unix ; the Mark Williams Company had no rights to either the Unix trademark or the AT & T / Bell Labs source code.

The delegation included Dennis Ritchie, who concluded that " it was very hard to believe that Coherent and its basic applications were not created without considerable study of the OS code and details of its applications " and " that looking at various corners peculiarities, bugs, etc.

The Mark Williams Company was a small software company in Chicago, Illinois ( later moved to Northbrook, Illinois ) that created Coherent, one of the first Unix-like operating systems for IBM PCs and several C programming language compilers.

Being that Coherent was a commercially available package and Linux was distributed freely on the Internet via their GNU public license, Coherent sales plummeted and Mr. Swartz had no choice but to cease operations in 1995.

* Coherent or resonance spectroscopy are techniques where the radiative energy couples two quantum states of the material in a coherent interaction that is sustained by the radiating field.

Coherent backscattering, an enhancement of backscattering that occurs when coherent radiation is multiply scattered by a random medium, is usually attributed to weak localization.

Coherent predates both MINIX and Linux by many years.

* Corum, J. F., and K. L. Corum, " RF Coils, Helical Resonators and Voltage Magnification by Coherent Spatial Modes ".

Invited paper, selected for publication in the book: " Coherent Lightwave Communications ", by P. S. HENRY et S. D. PERSONICK, IEEE Press, N. Y. 1989.

* Mark Williams Company, a small software company that created Coherent

Coherent written texts do not appear until the second half of the 8th century, and some treat the period before 750 as " prehistoric " and date the start of Old High German proper to 750 for this reason.

* H. Zhang et al., “ Coherent energy exchange between components of a vector soliton in fiber lasers ”, Optics Express, 16, 12618 – 12623 ( 2008 ).

* 5. 1 Music Disc, an extension to the red book standard that uses DTS Coherent Acoustics 5. 1 surround sound

* Coherent anti-Stokes Raman spectroscopy ( CARS ) is a recent technique that has high sensitivity and powerful applications for in vivo spectroscopy and imaging.

Scalable Coherent Interface ( SCI ) is an IEEE standard defining a directory based cache coherency protocol to avoid scalability limitations found in earlier multiprocessor systems.

* Simon, L., A. Mattelaer and A. Hadfield ( 2012 ) “ A Coherent EU Strategy for the Sahel ".

SCI, for Scalable Coherent Interface, is a high-speed interconnect standard for shared memory multiprocessing and message passing.

A group then organized to create a system aimed directly at this need, which eventually led to Scalable Coherent Interconnect.

His results became the basis of his habilitation on " Coherent Radiation of Electrons in the Synchrotron Accelerator ", defended in 1951.

Coherent Radiation Generation and Particle Acceleration, 1992, ISBN 0-88318-926-7.

Coherent emission from a laser dye-doped tandem SM-OLED device, excited in the pulsed regime, has been demonstrated.

They began investing in the development of a system based on a cache-coherent non-uniform memory architecture ( ccNUMA ) and leveraging Scalable Coherent Interconnect.

Coherent superpositions of optical wave fields include holography.

Later versions of Coherent ( version 4 and higher ) supported features common in modern Unix-like systems, including a version of MicroEMACS, access to DOS FAT16 File systems, an optimizing C compiler with linker, and a modified version of Taylor UUCP.

The final releases of Coherent also fully supported the iBCS COFF binary standard, which allowed binary compatibily with SCO Unix applications, including WordPerfect, Lotus 1-2-3, and several Microsoft applications including QuickBASIC, Microsoft Word, and MultiPlan.

However, the concept of coherent states has been considerably generalized, to the extent that it has become a major topic in mathematical physics and in applied mathematics, with applications ranging from quantization to signal processing and image processing ( see Coherent states in mathematical physics ).

These topics, with references to original work, are discussed in detail in Coherent states in mathematical physics.

Pulse-Doppler is incompatible with other high power microwave amplification devices that are not Coherent.

* David W. Ward, Jaime D. Beers, T. Feurer, Eric R. Statz, Nikolay S. Stoyanov, and Keith A. Nelson: Coherent control of phonon-polaritons in a THz resonator fabricated with femtosecond laser machining, Opt.

Coherent waves that travel along two different paths will arrive with phase shift, hence interfering with each other.

** Coherent Extrapolated Volition, hypothetical choices and the actions collectively taken with more knowledge and ability

* Coherent zooming of illustrations with 3D-graphics and text, Bernhard Preim, Andreas Raab, Thomas Strothotte, Proceedings of the conference on Graphics interface ' 97, ISBN 0-9695338-6-1, Canadian Information Processing Society.