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18 terms
Photonics Dictionary: P
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polymer x
P x
polymer
Polymers are large molecules composed of repeating structural units called monomers. These monomers are chemically bonded together to form long chains or networks, creating a macromolecular...
polymerase chain reaction
The polymerase chain reaction (PCR) is a widely used molecular biology technique used to amplify a specific segment of DNA (deoxyribonucleic acid) through a series of temperature-controlled cycles....
polymerization
Process of synthesizing long molecular chain materials (polymers) by reaction of many small molecules (usually thousands) called monomers.
photopolymer hologram
A holographic plate coated by photopolymeric mixtures that are composed of one or more monomers and a photoredox catalyst sensitized to visible light. The material becomes a plastic solid when...
photopolymer
A polymer produced as a result of photochemical processes.
photopolymerization
A process in which a mixture of one or more monomers, plus a catalyst, polymerize under exposure to light radiation. Photopolymerization permits a hologram to be exposed, fixed and reconstructed in...
polymethyl methacrylate
->
acrylic
A thermoplastic or optically transmitting hard plastic produced by applying polymerization initiator and heat to a monomer.
PCR
photoconductive relay; polymerase chain reaction
PDLC
polymer dispersed liquid crystals
photochemical
The term photochemical pertains to chemical processes or reactions that are initiated or influenced by the absorption of light. Photochemical reactions involve the interaction of light, often in the...
piezoelectric motion systems
Piezoelectric motion systems are mechanical systems that utilize piezoelectric materials to generate controlled motion or displacement. Piezoelectric materials exhibit the piezoelectric effect, which...
piezoelectric transducers and ceramic materials
Piezoelectric transducers are devices that utilize the piezoelectric effect to convert electrical energy into mechanical vibrations or vice versa. The piezoelectric effect is a property exhibited by...
piezoelectric
Piezoelectricity is a property exhibited by certain materials in which they generate an electric charge in response to mechanical stress or deformation, and conversely, undergo mechanical deformation...
polarimetric analysis
The determination of a substance's identity or quantity through the analysis of its optical rotation. For example, the examination of crystals and polymers under polarized infrared radiation is very...
poling
The process of aligning the crystallites in a piezoelectric material by placing a large DC field across the element at an elevated temperature. The alignment of crystallites results in an increased...
polysulfone resin
A thermoplastic, self-extinguishing polymer with excellent high-temperature, low-creep and arc resistance properties.
polyvinyl alcohol
An optical-quality polymer used in birefringent retarders.
pulsed laser deposition
A technique for depositing a material coating on metal, ceramic, semiconductor or polymer substrates. The interaction of laser energy with the target creates a plume of ablated material that is...
Photonics Dictionary
P
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