Anti-Stokes photoluminescence from <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>CsPbBr</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:math> nanostructures embedded in a <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Cs</mml:mi><mml:mn>4</mml:mn></mml:msub><mml:msub><mml:mi>PbBr</mml:mi><mml:mn>6</mml:mn></mml:msub></mml:mrow></mml:math> crystal

Enhanced Photoluminescence from Embedded PbSe Colloidal Quantum Dots in Silicon-Based Random Photonic Crystal Microcavities

The experimental observation of enhanced photoluminescence from high-Q silicon-based random photonic crystal microcavities embedded with PbSe colloidal quantum dots is being reported. The emission is optically excited at room temperature by a continuous-wave Ti-sapphire laser and exhibits randomly distributed localized modes with a minimum spectral linewidth of 4 nm at 1.5 μm wavelength.

Stokes and anti-Stokes photoluminescence towards five different Inx(Al0.17Ga0.83)1 xAs/Al0.17Ga0.83As quantum wells

Photoluminescence from silicon dioxide photonic crystal cavities with embedded silicon nanocrystals

Yiyang Gong,1,* Satoshi Ishikawa,2 Szu-Lin Cheng,3 Marika Gunji,3 Yoshio Nishi,1 and Jelena Vučković1 1Department of Electrical Engineering, Stanford University, Stanford, California 94305, USA 2Corporate Manufacturing Engineering Center, Toshiba Corporation, Yokohama 235-0017, Japan 3Department of Material Science and Engineering, Stanford University, Stanford, California 94305, USA Received 2...

Photoluminescence of SnO2 nanoparticles embedded in Al2O3

Tetragonal Sn nanoparticles of ∼15 nm diameter are produced in Al2O3 by direct Sn implantation at room temperature. After thermal annealing at 1000 ◦C in oxygen, the implantation-induced amorphous region recrystallized and the Sn nanoparticles turned into SnO2 nanoparticles with an average diameter of ∼30 nm as revealed by transmission electron microscopy. While no absorption and photoluminesce...

Picosecond anti-Stokes generation in a photonic-crystal fiber for interferometric CARS microscopy.

We generate tunable picosecond anti-Stokes pulses by four-wave mixing of two picosecond pump and Stokes pulse trains in a photonic-crystal fiber. The visible, spectrally narrow anti-Stokes pulses with shifts over 150 nm are generated without generating other spectral features. As a demonstration, we employ the generated anti-Stokes pulses as reference pulses in an interferometric coherent anti-...