Direct-to-video holographic 3-D imaging using photorefractive multiple quantum well devices

Jones, Richard W.; Tziraki, M.; French, Paul M. W.; Kwolek, K. M.; Nolte, David D.; Melloch, M. R.

doi:10.1364/oe.2.000439

Cited by 14 publications

(6 citation statements)

References 11 publications

(12 reference statements)

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“…Recently multiple-quantum-well (MQW) SLMs have been developed to show spatial resolutions of 5-7 µm and a response time of 1 µs or faster. [1][2][3][4] MQW-SLMs will need further improvements in such as spatial resolution, contrast, or capability in handling large readout intensities as well as the needs to considerably reduce the production costs.…”

Section: Introductionmentioning

confidence: 99%

All-Optical Reflectance Control Based on Photoinduced Complex Refractive Index Changes in Guided Mode Thin Films Containing Indium or Gallium Phthalocyanines

Nagamura

Naito

Yoshida

et al. 2002

J. Nonlinear Optic. Phys. Mat.

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Tetrasubstituted indium or gallium phthalocyanines and their dimers bridged with various ligands were dispersed in a polymer thin film, which was spin-coated on silver thin film vacuum-evaporated on a glass slide. All-optical reflectance control was achieved by complex refractive index changes upon photoexcitation of phthalocyanines by nanosecond laser in such a guided mode geometry. They gave rise in less than ns pulse width, and a few to a few tens of microseconds decay characteristic to the lifetime of the excited triplet state. Repeated and reversible reflectance changes were achieved. Axially bridged phthalocyanine dimers showed almost the same photoresponses as monomers.

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Section: Introductionmentioning

confidence: 99%

All-Optical Reflectance Control Based on Photoinduced Complex Refractive Index Changes in Guided Mode Thin Films Containing Indium or Gallium Phthalocyanines

Nagamura

Naito

Yoshida

et al. 2002

J. Nonlinear Optic. Phys. Mat.

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“…5 Applications of PRQW devices include image processing, 6,7 adaptive laser-based ultrasound detection, 8,9 optically programmable femtosecond pulse shaping, [10][11][12] and imaging through turbid media. 13,14 Each of these applications uses the high sensitivity and high speed of the PRQW devices in addition to their adaptability to changing optical conditions in which they compensate for vibrations, speckle, and scattered light.…”

Section: Introductionmentioning

confidence: 99%

Dynamic holography in a broad-area optically pumped vertical GaAs microcavity

et al. 2001

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A broad-surface-area vertical GaAs microcavity was operated as an adaptive holographic film. The cavity mirrors were transparent to high-energy (millijoules per square centimeter) hologram writing pulses at a wavelength of 730 nm that generated optically pumped gain gratings in a 1-m-thick active layer of GaAs. The gain gratings were probed with a low-intensity (mW) tunable laser at wavelengths near the GaAs band edge in the high-reflectance bandwidth of the cavity Bragg mirrors. When the structure was designed with low mirror reflectances ͓(R 1 R 2) 1/2 ϭ 90%͔ to operate below the lasing threshold, the cavity resonance bandwidth was sufficiently broad to permit homogeneous hologram readout over a large (several square millimeters) area. Diffraction efficiencies of approximately 10% were predicted and approached experimentally. These results represent a first step toward the realization of a holographic vertical-cavity surface-emitting laser structure.

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“…6 Adaptive applications include all-order dispersion compensation. 7 PRQW's functioning at the resonant exciton wavelength have been shown to be useful for a wide variety of narrowband applications, such as optical coherence tomography, 8,9 optical image processing, 10 and ultrasound detection. 11 However, these devices previously suffered from a limited diffraction bandwidth that resulted from the narrow linewidth of the resonant electrooptic response of quantum-confined excitons in quantum wells.…”

Section: Introductionmentioning

confidence: 99%

Broadband low-dispersion diffraction of femtosecond pulses from photorefractive quantum wells

Dinu

Nakagawa²,

Melloch³

et al. 2000

J. Opt. Soc. Am. B

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Photorefractive quantum wells operating by means of the Franz-Keldysh effect were designed to diffract a bandwidth of approximately 8 nm, nearly matching that of 100-fs pulses, with little dispersion in the diffracted pulses. Large diffraction bandwidths are engineered by adjustment of the well width of the quantum wells in a specific nonuniform distribution across the thickness of the device. The causal relationship between the real and the imaginary parts of the refractive index leads to an excitonic spectral phase with linear dependence on wavelength, resulting in almost distortion-free diffraction. These features render photorefractive quantumwell devices suitable candidates for femtosecond pulse-shaping and spectral holography applications, without the previous bandwidth limitations.

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Direct-to-video holographic 3-D imaging using photorefractive multiple quantum well devices

Cited by 14 publications

References 11 publications

All-Optical Reflectance Control Based on Photoinduced Complex Refractive Index Changes in Guided Mode Thin Films Containing Indium or Gallium Phthalocyanines

All-Optical Reflectance Control Based on Photoinduced Complex Refractive Index Changes in Guided Mode Thin Films Containing Indium or Gallium Phthalocyanines

Dynamic holography in a broad-area optically pumped vertical GaAs microcavity

Broadband low-dispersion diffraction of femtosecond pulses from photorefractive quantum wells

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