Time-domain response of point-defect cavities in two-dimensional photonic crystal slabs using picosecond light pulse

Time-domain responses of point-defect cavities in two-dimensional photonic crystal slabs are directly investigated. Point-defect cavities are excited by picosecond light pulses and time evolutions of the light emissions are measured by using cross-correlation method. The obtained signals clearly show delays in initial rises and tailings in later stages which reflect photon lifetimes of the cavities. The signals are analyzed by comparing with numerical simulations where Gaussian input pulses and linear responses of the systems are assumed. Photon lifetimes are evaluated to be <1, 3, and 9ps for the point-defect cavities having Q factors of 500, 3800, and 10 000, respectively. We believe that the results obtained here will contribute to the time-domain manipulation of photons utilizing artificial defects in photonic crystals.Time-domain responses of point-defect cavities in two-dimensional photonic crystal slabs are directly investigated. Point-defect cavities are excited by picosecond light pulses and time evolutions of the light emissions are measured by using cross-correlation method. The obtained signals clearly show delays in initial rises and tailings in later stages which reflect photon lifetimes of the cavities. The signals are analyzed by comparing with numerical simulations where Gaussian input pulses and linear responses of the systems are assumed. Photon lifetimes are evaluated to be <1, 3, and 9ps for the point-defect cavities having Q factors of 500, 3800, and 10 000, respectively. We believe that the results obtained here will contribute to the time-domain manipulation of photons utilizing artificial defects in photonic crystals.

[1]  Susumu Noda,et al.  Investigation of optical nonlinearities in an ultra-high-Q Si nanocavity in a two-dimensional photonic crystal slab. , 2006, Optics express.

[2]  Henkjan Gersen,et al.  Local probing of Bloch mode dispersion in a photonic crystal waveguide. , 2005, Optics express.

[3]  Susumu Noda,et al.  Highly efficient in-plane channel drop filter in a two-dimensional heterophotonic crystal , 2005 .

[4]  S. Noda,et al.  Multichannel add/drop filter based on in-plane hetero photonic Crystals , 2005, Journal of Lightwave Technology.

[5]  Masaya Notomi,et al.  Optical bistable switching action of Si high-Q photonic-crystal nanocavities. , 2005, Optics express.

[6]  T. Asano,et al.  Ultra-high-Q photonic double-heterostructure nanocavity , 2005 .

[7]  Susumu Noda,et al.  Fine-tuned high-Q photonic-crystal nanocavity. , 2005, Optics express.

[8]  Oskar Painter,et al.  Nonlinear response of silicon photonic crystal microresonators excited via an integrated waveguide and fiber taper. , 2005, Optics express.

[9]  G. Rupper,et al.  Vacuum Rabi splitting with a single quantum dot in a photonic crystal nanocavity , 2004, Nature.

[10]  Susumu Noda,et al.  Time-domain measurement of picosecond light-pulse propagation in a two-dimensional photonic crystal-slab waveguide , 2004 .

[11]  T. Asano,et al.  Photonics: Tuning holes in photonic-crystal nanocavities (reply) , 2004, Nature.

[12]  P. Barclay,et al.  Fabrication-tolerant high quality factor photonic crystal microcavities. , 2003, Optics express.

[13]  S. Fan,et al.  Stopping light all optically. , 2003, Physical review letters.

[14]  Masaya Notomi,et al.  High-quality-factor and small-mode-volume hexapole modes in photonic-crystal-slab nanocavities , 2003 .

[15]  T. Asano,et al.  High-Q photonic nanocavity in a two-dimensional photonic crystal , 2003, Nature.

[16]  P. Barclay,et al.  Experimental demonstration of a high quality factor photonic crystal microcavity , 2003, quant-ph/0306110.

[17]  Susumu Noda,et al.  Photonic Devices Based on In-Plane Hetero Photonic Crystals , 2003, Science.

[18]  Majd Zoorob,et al.  Separation of photonic crystal waveguides modes using femtosecond time-of-flight , 2002 .

[19]  Yoshimasa Sugimoto,et al.  Observation of small group velocity in two-dimensional AlGaAs-based photonic crystal slabs , 2002 .

[20]  Susumu Noda,et al.  Surface-emitting channel drop filters using single defects in two-dimensional photonic crystal slabs , 2001 .

[21]  Susumu Noda,et al.  Trapping and emission of photons by a single defect in a photonic bandgap structure , 2000, Nature.

[22]  Steven G. Johnson,et al.  Linear waveguides in photonic-crystal slabs , 2000 .

[23]  S. Noda,et al.  Waveguides and waveguide bends in two-dimensional photonic crystal slabs , 2000 .

[24]  S. Noda,et al.  Full three-dimensional photonic bandgap crystals at near-infrared wavelengths , 2000, Science.

[25]  Susumu Noda,et al.  Design for Waveguides in Three-Dimensional Photonic Crystals. , 2000 .

[26]  Axel Scherer,et al.  Defect Modes of a Two-Dimensional Photonic Crystal in an Optically Thin Dielectric Slab , 1999 .

[27]  E. Yablonovitch,et al.  Inhibited spontaneous emission in solid-state physics and electronics. , 1987, Physical review letters.

[28]  T. Asano,et al.  Ultra-short pulse propagation in 3D GaAs photonic crystals , 2002 .