The University of New Mexico

Actoprobe LLC

Gennady A Smolyakov

Marek A Osinski

Nathan J Withers

Alexander A Ukhanov

Brian A Akins

Krishnaprasad Sankar

Fei Hung Chu

Alexander Neumann

John Bryan Plumley

Antonio C Rivera

Jose M Vargas

Chengao Wang

Omar K Qassim

A new integrated III-V/silicon Atomic Force Microscopy (AFM) active optical probe integrates a III-V semiconductor laser source and a silicon cantilever AFM probe into a robust easy-to-use single III-V/silicon chip to enable AFM measurements, optical imaging, and spectroscopy at the nanoscale.

Integrated III-V/silicon atomic force microscopy active optical probe

A semiconductor device comprising a waveguide having a core, said core having inserted therein one or more layers of nanoemitters.

Optically cooled platform for thermal management applications

The present invention provides one or more injection-lockable whistle-geometry semiconductor ring lasers, which may be cascaded, that are integrated on a common silicon-on-insulator (SOI) substrate with a single-frequency semiconductor master laser, wherein the light output from the semiconductor master laser is used to injection-lock the first of the semiconductor ring lasers. The ring lasers can be operated in strongly injection-locked mode, while at least one of them is subjected to direct injection current modulation.

Ring laser integrated with silicon-on-insulator waveguide

A new monolithic Atomic Force Microscopy (AFM) active optical probe monolithically integrates a base of the probe, a cantilever, a semiconductor laser source, an AFM tip, and a photodetector into a robust, easy-to-use single semiconductor chip to enable AFM measurements, optical imaging, and optical spectroscopy at the nanoscale.

Monolithic atomic force microscopy active optical probe

A method for generating single optical pulses of picosecond-range duration with suppressed transient emission tails.

Method for generating single picosecond optical pulses with substantially suppressed transient emission tail in semiconductor diode laser

A light-emitting device having a self-cooled semiconductor laser having a laser cavity.

Light-emitting device having self-cooled semiconductor laser

A new resonant-cavity-enhanced Atomic Force Microscopy (AFM) active optical probe integrates a semiconductor laser source and an aperture AFM/near-field scanning optical microscopy (NSOM) probe in either external-resonant-cavity or internal-resonant-cavity configuration to enable both conventional AFM measurements and optical imaging and spectroscopy at the nanoscale.

VCSEL-based resonant-cavity-enhanced atomic force microscopy active optical probe

A heterogeneous scintillator material is provided comprising core/shell nanoparticles having a highly hygroscopic or deliquescent halide-based core activated with trivalent Lnor divalent Lnlanthanide ions (Ln=La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu) and a stable non-hygroscopic shell thereon. The heterogeneous nanoparticles can comprise highly hygroscopic lanthanide halide (LaBr, LuI) cores protected with stable non-hygroscopic LaFshells. The heterogeneous nanoparticles can comprise deliquescent alkaline earth halide (SrI, BaI) cores protected with stable non-hygroscopic (SrF, BaF) shells.

Halide-based scintillator nanomaterial

A new active optical Atomic Force Microscopy (AFM) probe integrating monolithically a semiconductor laser source, an AFM tip, and a photodetector into a robust, easy-to use single semiconductor chip to enable both conventional AFM measurements and optical imaging and spectroscopy at the nanoscale.

Atomic force microscopy active optical probe

A thermal neutron detector and method employ Gd-containing nanoscintillators. Thermal neutron radiation is detected by observing scintillation events from the nanoscintillators.

Thermal neutron detectors based on gadolinium-containing nanoscintillators

The invention provides a semiconductor light-emitting device having a monolithically integrated master laser, such as a distributed-Bragg-reflector (DBR) master laser, and injection-locked ring slave laser with modulated photon lifetime for optical communication beyond 100 GHz.

Light-emitting device having photon-lifetime modulation

A neutron irradiation history sensor and detection method for detection of thermal neutrons exploit transmutation ofDy intoHo andEr and significant differences in optical properties of Dy, Ho, and Er in order to enable detection of relative fractions of Dy, Ho, and Er and thus the degree and timing of prior thermal neutron exposure that has occurred, providing a tamper-proof forensic record of the prior thermal neutron exposure. The irradiation history sensor and detection method advantageously employ Dy-containing nanocrytals (NCs) residing in a transparent host.

Nanocrystalline optically-based neutron irradiation history sensor

Scintillator material comprising nanoparticles (nanocrystals) comprising lead (Pb), iodine (I), and optionally one or both of oxygen (O) and hydrogen (H) wherein the nanoparticles exhibit room-temperature scintillation under gamma irradiation. The scintillator nanoparticles can comprise PbOI. The scintillator nanoparticles can comprise PbIOH in generally equiatomic proportions or non-equiatomic variants thereof that exhibit scintillation under gamma irradiation. The scintillator nanoparticles have a particle dimension in the range of about 5 to about 100 nm. Microparticles (microcrystals) also are provided comprising lead (Pb), iodine (I), and optionally one or both of oxygen (O) and hydrogen (H) grown in a nanoparticle colloidal solution over time to a particle dimension greater than 0.1 &#x3bc;m, such as about 2 microns. A heterogeneous scintillator material is provided comprising core/shell nanoparticles having a highly hygroscopic or deliquescent halide-based core activated with trivalent Lnor divalent Lnlanthanide ions (Ln=La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu) and a stable non-hygroscopic shell thereon. The heterogeneous nanoparticles can comprise highly hygroscopic lanthanide halide (LaBr, LuI) cores protected with stable non-hygroscopic LaFshells. The heterogeneous nanoparticles can comprise deliquescent alkaline earth halide (SrI, BaI) cores protected with stable non-hygroscopic (SrF, BaF) shells.

A semiconductor ring laser (SRL) section is monolithically integrated with a DFB or DBR master laser section on a semiconductor substrate of a light-emitting device to provide an injection locking mode of operation that can result in low-cost ultrafast (over 100 GHz) functional chip that will be easy to use in practice.

Growing community of inventors

Albuquerque, NM, United States of America

Gennady A Smolyakov