Impact of planar microcavity effects on light extraction-Part I: basic concepts and analytical trends

Benisty, H.; Neve, H. De; Weisbuch, C.

doi:10.1109/3.709578

Cited by 428 publications

(293 citation statements)

References 61 publications

Supporting

Mentioning

281

Contrasting

Unclassified

Order By: Relevance

“…To collect most photons from the top of the pillar, we use highly asymmetric cavities with a bottom mirror transmission more than three orders of magnitude smaller than the top mirror transmission. This strong unbalance in the mirror transmission ensures that less than 0.1% of photons escape through the bottom mirror 24 . However, losses can still arise from the sidewall roughness when reducing the pillar diameter.…”

Section: Resultsmentioning

confidence: 99%

Bright solid-state sources of indistinguishable single photons

et al. 2013

View full text Add to dashboard Cite

Bright sources of indistinguishable single photons are strongly needed for the scalability of quantum information processing. Semiconductor quantum dots are promising systems to build such sources. Several works demonstrated emission of indistinguishable photons while others proposed various approaches to efficiently collect them. Here we combine both properties and report on the fabrication of ultrabright sources of indistinguishable single photons, thanks to deterministic positioning of single quantum dots in well-designed pillar cavities. Brightness as high as 0.79±0.08 collected photon per pulse is demonstrated. The indistinguishability of the photons is investigated as a function of the source brightness and the excitation conditions. We show that a two-laser excitation scheme allows reducing the fluctuations of the quantum dot electrostatic environment under high pumping conditions. With this method, we obtain 82 ± 10% indistinguishability for a brightness as large as 0.65 ± 0.06 collected photon per pulse.

show abstract

Section: Resultsmentioning

confidence: 99%

Bright solid-state sources of indistinguishable single photons

et al. 2013

View full text Add to dashboard Cite

show abstract

“…A limiting factor to achieving high efficiencies is that when no light extraction techniques are employed, only a small percentage of the light escapes from the LED ͑ϳ1 / 4n 2 per surface͒ because of total internal reflection ͑TIR͒. 1 Various methods have been employed to increase light extraction such as surface roughening 2,3 and geometrical modification; 4,5 however, these methods rely on random light redirecting events. Early on, photonic crystals 6 ͑PhCs͒ were studied as a means of controllably extracting guided light in other material systems.…”

Section: Directional Emission Control and Increased Light Extraction mentioning

confidence: 99%

Directional emission control and increased light extraction in GaN photonic crystal light emitting diodes

McGroddy

David

Matioli

et al. 2008

Applied Physics Letters

Self Cite

159

View full text Add to dashboard Cite

Partly made at end of A. David Thesis. No permanent co-author from LCFInternational audienceLimitations in extraction efficiency of gallium nitride (GaN) photonic crystal (PhC) light emitting diodes (LEDs) are addressed by implementing an LED design using both two-dimensional PhCs in-plane and index guiding layers (IGLs) in the vertical direction. The effects of PhCs on light extraction and emission directionality from GaN LEDs are studied experimentally. Angular-resolved electroluminescence clearly shows the combined effect of controlling the vertical mode profile with the IGLs and tailoring the emission profile with the periodicity of the PhC lattice. Increases in directional emission as high as 3.5 times are achieved by taking advantage of this directionality and guided mode control

show abstract

“…Microcavity LEDs (MCLEDs) are the "rst manifestation of this concept. They cannot genuinely be referred to as photonic crystals, but share the concept of using periodic structures for strong con"nement: 23% external e$ciency, extracted from a single facet, has already been demonstrated [85,86]. Extending this concept into two and three dimensions should push the limit further and lead to devices with an external e$ciency up to 50% or even beyond.…”

Section: Light Emitting Diodes (Leds)mentioning

confidence: 99%

“…The extraction e$ciency then increases because if, out of the k modes that the emission process can "ll, a single mode is extracted, the extraction e$ciency (and hence the external e$ciency) scales as 1/k. This is, in naive terms, the main factor behind the 23% external quantum e$ciency already obtained with MCLEDs [85,86]. The other factor involved is photon recycling, which will be discussed below.…”

Section: Thin Cavitiesmentioning

confidence: 99%

Photonic crystals in the optical regime â past, present and future

Krauss

Rue

1999

Progress in Quantum Electronics

445

141

View full text Add to dashboard Cite

During the last decade, photonic crystals, also known as photonic microstructures or photonic bandgap structures, have matured from an intellectual curiosity concerning electromagnetic waves to a "eld with real applications in both the microwave and optical regime. In this review, we shall focus on progress and the prospects for semiconductor structures that mainly involve guided modes interacting with periodic structures, but we also evaluate alternative material systems and fabrication methods, e.g. those based on self-organisation. We shall go from basic concepts, via a discussion of the state of the art, to device applications. Naturally, the discussion of the applications will be more speculative, but we attempt to evaluate the real prospects o!ered by photonic crystals at optical frequencies while considering practical limitations. In doing so, we identify a variety of areas such as the combination of quantum dot light emitters with photonic crystals that seem particularly promising. We discuss the prospects for enhanced light}matter interactions in photonic crystals and the related material and design issues. Overall, the aim of this review is to introduce the reader to the concepts of photonic crystals, describe the state of the art and attempt to answer the question of what uses these peculiar structures may have.

show abstract

Impact of planar microcavity effects on light extraction-Part I: basic concepts and analytical trends

Cited by 428 publications

References 61 publications

Bright solid-state sources of indistinguishable single photons

Bright solid-state sources of indistinguishable single photons

Directional emission control and increased light extraction in GaN photonic crystal light emitting diodes

Photonic crystals in the optical regime â past, present and future

Contact Info

Product

Resources

About

Impact of planar microcavity effects on light extraction-Part I: basic concepts and analytical trends

Cited by 428 publications

References 61 publications

Bright solid-state sources of indistinguishable single photons

Bright solid-state sources of indistinguishable single photons

Directional emission control and increased light extraction in GaN photonic crystal light emitting diodes

Photonic crystals in the optical regime â past, present and future

Contact Info

Product

Resources

About

Photonic crystals in the optical regime â past, present and future