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95 311 (0,149s)

Result

Efficient light amplification in low gain materials due to a photonic band edge effect

One of the possibilities of increasing optical gain of a light emitting source that the emission wavelength of the light source with gain falls close to the photonic band edge of the PhC, then due to low group velo...

BM - Fyzika pevných látek a magnetismus

  • 2012
  • Jx
  • Link
Result

Diamond photonic crystal slab: leaky modes and modified photoluminescence emission of surface-deposited quantum dots

of a light source placed directly on the PhC surface can be modified by employing on a nano-diamond layer is presented. Even though the PhC is structurally imperfect in the broadspectral region, implies that an efficient <...

BM - Fyzika pevných látek a magnetismus

  • 2012
  • Jx
  • Link
Result

Application of CVD diamonds as dosimeters of soft X-ray emission from plasma sources

The thermoluminescence properties of polycrystalline diamond type CVDITE-CDM (De Beers Company), were studied with respect to its use in the dosimetry of soft sensitivity to the blue portion of the visible light spectrum and the unp...

BH - Optika, masery a lasery

  • 2004
  • Jx
Result

Enhanced photoluminescence extraction efficiency from a diamond photonic crystal via leaky modes

Two-dimensional photonic crystal can be exploited as the top part of a light source in order to increase its extraction efficiency. Here, we report on the room-temperature intrinsic photoluminescence (PL) behavior of a nanocrystalli...

BM - Fyzika pevných látek a magnetismus

  • 2011
  • Jx
  • Link
Result

Visible-light sensitization of boron-doped nanocrystalline diamond through non-covalent surface modification

modification of boron-doped diamond. In a two-step procedure, polyethyleneimine is adsorbed on the hydrogenated diamond surface and subsequently modified with a model light-harvesting donor-?-bridge-acceptor molecule (code...

CF - Fyzikální chemie a teoretická chemie

  • 2015
  • Jx
  • Link
Result

Micro lens array

A linear and hexagonal microlens array was designed to reduce the light emitted by the LED source to angles higher than 60 degrees from the perpendicular to the surface source and measuring the candela characteristics. Addi...

Optics (including laser optics and quantum optics)

  • 2024
  • Gfunk
Result

Light Side Emitting Textile Structures

is used. The SEPOF end connected with light energy source is prepared by cutting with heated wire and then by polishing by diamond powder. Illumination system with light emitting diode (LED) is used as light

JJ - Ostatní materiály

  • 2016
  • O
  • Link
Result

Polishing a polymer interlayers for diamond-diamond wafer bonding

Surfaces of as-grown samples had high local peaks (detected by white light interferometer) that impede diamond to diamond bonding as directly as by employing interlayer polymer....

BM - Fyzika pevných látek a magnetismus

  • 2012
  • D
Result

Diamond functionalization with light-harvesting molecular wires: improved surface coverage by optimized Suzuki cross-coupling conditions

Donor-acceptor type light-harvesting molecular wires are covalently attached to a boron-doped diamond surface via a combination of diazonium electrografting-dicyclohexylphosphino-2,6-dimethoxybiphenyl (SPhos) and Pd(0), the diam...

CG - Elektrochemie

  • 2014
  • Jx
  • Link
Result

Light emission dynamics of silicon vacancy centers in a polycrystalline diamond thin film

Diamond thin films can be, at a relatively low-cost, prepared with a high-density of light-emitting negatively charged silicon vacancy (SiV) centers, which are composed of diamond grains with both the SiV centers and sp2-ca...

Condensed matter physics (including formerly solid state physics, supercond.)

  • 2023
  • Jimp
  • Link
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