Compact wavelength monitor for remote sensing applications suitable to precisely measure the wavelength of individual laser pulses

Invited paper for SPIE Defense, Security and Sensing 2013

29 April 2013

SENSOR project overview video

17 April 2013

Studies of hole transport in Mg-doped AlGaN layers for deep-ultraviolet light emitters

SPIE Photonics West

7 February 2013

Flow cytometry on a chip

To be published in “Point of Care Diagnostics on a Chip”

2013

Handheld flow cytometer for rapid pathogen characterization in water

2012 Materials Research Society Fall Meeting

25 November 2012

In-well pumped blue GaN-based vertical-external-cavity surface-emitting lasers

International Workshop on Nitride Semiconductors

18 October 2012

Time encoded multicolor fluorescence detection in a microfluidic flow cytometer

Lab on a Chip

2012

Optically pumped UV lasers grown on bulk AlN substrates

physica status solidi c

February 2012

Effect of strain and barrier composition on the polarization of light emission from AlGaN/AlN quantum wells

Applied Physics Letters

9 January 2012

Effect of temperature and strain on the optical polarization of (In)(Al)GaN ultraviolet light emitting diodes

Applied Physics Letters

2011

In-well pumping of InGaN/GaN vertical-external-cavity surface-emitting lasers

Applied Physics Letters

November 2011

Pseudomorphically grown ultraviolet C photopumped lasers on bulk AlN substrates

Applied Physics Express

10 August 2011

Monitoring CD4 in whole blood with an opto-fluidic detector based on spatially modulated fluorescence emission

Cytometry Part A

April 2011

Semi-polar nitride surfaces and heterostructures

physica status solidi (b)

March 2011

InAlGaN optical emitters: laser diodes with non-epitaxial cladding layers and ultraviolet light-emitting diodes

Invited talk at Gallium Nitride Materials & Devices VI, SPIE Photonics West 2011

24 January 2011

Optical polarization of UV-A and UV-B (In)(Al)GaN multiple quantum well light emitting diodes

Gallium Nitride Materials & Devices VI at SPIE Photonics West 2011

22 January 2011

Coalescence during epitaxial lateral overgrowth of (Al,Ga)N(11.2) layers

Journal of Crystal Growth

January 2011

Advances in group III-nitride-based deep UV light-emitting diode technology

Semiconductor Science & Technology

January 2011

Spatially modulated emission advances point-of-care diagnostics

Laser Focus World

November 2010

Optical polarization characteristics of ultraviolet (In)(Al)GaN multiple quantum well light emitting diodes

Applied Physics Letters

25 October 2010

Optically-pumped lasing of semipolar InGaN/GaN(1122) heterostructures

physica status solidi (c)

July 2010

Structural characterization of thick (1122) GaN layers grown by HVPE on m-plane sapphire

physica status solidi (a)

June 2010

Nitride laser diodes with non-epitaxial cladding layers

IEEE Photonics Technology Letters

March 2010

Lasing of semi-polar InGaN/GaN(1122) heterostructures grown on m-plane sapphire substrates

SPIE Photonics West 2010: Novel In-Plane Semiconductor Lasers IX

25 January 2010

Compact and fast read-out for wavelength-encoded biosensors

SPIE Proceedings

25 January 2010

Microfluidic-based detection platform for on-the-flow analyte characterization (invited talk)

Silicon Photonics V

23 January 2010

Low-cost interrogation unit for wavelength-encoded optical sensors

7th International Workshop on Structural Health Monitoring

9 September 2009

Silver-clad nitride semiconductor laser diode

Applied Physics Letters

26 January 2009

Ultraviolet laser diodes on sapphire and AlN substrates

Photonics West 2009

26 January 2009

Spatially modulated fluorescence emission from moving particles

Applied Physics Letters

26 January 2009

Spatially modulated emission for point-of-care flow cytometer

MRS Fall Meeting 2008

1 December 2008

Label-free flow-cytometry on a microfluidic chip based on native fluorescence

Joint Meeting of the European Society for Clinical Analysis (ESCCA) and the German Society of Cytometry (DGfZ)

16 September 2008

Low-cost interrogation unit for Fiber Bragg Grating sensors

17th International Conference on Plastic Optical Fibers

25 August 2008

Micro-fluidic-based optical detection platform for characterizing fluorescing objects with integrated wavelength detection

IEEE LEOS 2008 Summer Topicals

21 July 2008

Microfluidic-based detection platform for on-the-flow analyte characterization

Invited seminar talk at the University of California, Santa Cruz

5 June 2008

A novel concept for on-chip flow cytometry with improved signal-to-noise-ratio and "alignment-free" optics

ISAC XXIV International Congress 2008, Cytometry in the Age of Systems Biology

17 May 2008

On-the-flow characterizaion of cells based on native fluroescence spectroscopy

ISAC XXIV International Congress 2008, Cytometry in the Age of Systems Biology

17 May 2008

On-the-flow pathogen characterization based on native fluorescence detection

Advances in Biodefense Technology

7 May 2008

Compact, microfluidic-based detection platform for on-the-flow analyte characterization

Condensed Matter & Biological Physics Seminar, 2008 April

4 April 2008

Class identification of pathogens based on native fluorescence spectroscopy on-a-chip

Defense and Security Symposium (DSS) 2008

16 March 2008

On-the-flow differentiation between cells based on native fluorescence spectroscopy on a chip

APS Meeting 2008

10 March 2008

Compact optical characterization platform for detection of bio-molecules in fluidic and aerosol samples

International Journal of High Speed Electronics and Systems

March 2008

Electrical characterization of ZnO, including analysis of surface conductivity

Applied Physics A

31 December 2007

Class identification of bio-molecules based on multi-color native fluorescence spectroscopy

International Journal of High Speed Electronics and Systems

31 December 2007

Chip-size wavelength detectors

International Journal of High Speed Electronics and Systems

31 December 2007

Compact and fast interrogation unit for fiber Bragg grating sensors

SPIE Proceedings Vol. 6758

31 October 2007

Smart trigger subsystem for class identification of biomolecules and chemicals

ONR EUWP project review

19 September 2007

Native fluorescence spectroscopy on a chip for pathogen detection

Biodetection Technologies 2007

14 June 2007

Fluorescence spectroscopy on a moving particle

2007 MRS Spring Meeting

9 April 2007

Wavelength monitors for optical sensing applications

Photonics Spectra

15 March 2007

Influence of quantum well barriers on gain and threshold current in AlGaN lasers

Applied Physics Letters

9 March 2007

On-chip wavelength detection

DARPA Microsystems Technology Symposium

4 March 2007

Fluorescence spectroscopy on moving particles

Invited talk at the Max Planck Research Group, Institute of Optics, Information and Photonics

1 March 2007

Resolving pm wavelength shifts in optical sensing

Applied Physics B

1 March 2007

Native fluorescence spectroscopy on a chip for bioagent detection

Invited talk at IPHT, Jena, Germany

3 January 2007

Fluorescence spectrometer-on-a-fluidic-chip

Lab on a Chip

1 January 2007

Vertical injection thin-film AlGaN/AlGaN multiple-quantum-well deep ultraviolet light-emitting diodes

Applied Physics Letters

11 December 2006

Compact, low-cost, and high-resolution interrogation unit for optical sensors

Applied Physics Letters

16 November 2006

Compact optofluidic platform for detection of bio-molecules

Optics East 2006, Session LS303: Lab-on-a-Chip: Platforms, Devices, and Applications II

4 October 2006

Native fluorescence spectroscopy on-a-chip

Optics East 2007

3 October 2006

Compact and high-resolution wavelength detectors for read-out of optical sensors

Optics East 2006, Session PT105: Photonic Sensing Technologies

3 October 2006

Class identification of bio-molecules based on multi-color native fluorescence spectroscopy

Optics East 2006, Session SA201

2 October 2006

Smart trigger subsystem for class identification of biomolecules and chemicals

ONR/EUWP project review

28 June 2006

Compact optical characterization platform for detection of bio-molecules in fluidic and aerosol samples

ISSSR 2006 (International Symposium on Spectral Sensing Research)

1 June 2006

Chip-size wavelength detectors

ISSSR 2006 (International Symposium on Spectral Sensing Research)

1 June 2006

Class identification of biomolecules based on multicolor native fluorescence spectroscopy

ISSSR 2006 (International Symposium on Spectral Sensing Research)

1 June 2006

Ultraviolet InAlGaN light emitting diodes grown on hydride vapor phase epitaxy AlGaN/sapphire templates

Japanese Journal of Applied Physics

1 May 2006

Guiding light in fluids

Applied Physics Letters

14 April 2006

Chip-size wavelength detectors and their use in biosensing

Invited talk at Bosch AG, Stuttgart, Siemens VDO Regensburg, Leoni AG Nuernberg

19 December 2005

Effects of an electrically conducting layer at the zinc oxide surface

Japanese Journal of Applied Physics

11 October 2005

Electrical characterization of ZnO, including analysis of surface conductivity

SOXESS Workshop 2005

28 September 2005

Analysis of a conducting channel at the native zinc oxide surface

Superlattices and Microstructures

15 September 2005

Analysis of the objectionable n-background conductivity in ZnO crystals

47th Electronic Materials Conference

24 June 2005

Smart Trigger for Class Identification of Biomolecules and Chemicals

EUWP review meeting

22 June 2005

Analysis of a conducting channel at the native zinc oxide surface

E-MRS Spring Meeting 2005, Strasbourg

3 June 2005

Depth-resolved cathodoluminescence of a homoepitaxial AlN thin film

Journal of Crystal Growth

15 April 2005

Shock-induced band gap shift in GaN: anisotropy of the deformation potentials

Physical Review B

15 March 2005

Evidence for an electrically conducting layer at the native zinc oxide surface

Annual Meeting of the German Physical Society (DPG)

4 March 2005

Evidence for an electrically conducting layer at the native zinc oxide surface

Nitride Seminar, Materials Dept., UCSB

4 February 2005

Gain and photoluminescence spectroscopy in violet and ultra-violet InAlGaN laser structures

Physica Status Solidi (Proceedings of IWN 2004)

1 February 2005

Influence of surfaces on electrical properties of ZnO

Third ZnO Workshop, Sendai, Japan

8 October 2004

Spiral-shaped microcavity laser: a new class of semiconductor laser

Proceedings of the 27th International Conference on the Physics of Semiconductors

26 July 2004

Near-band-edge cathodoluminescence studies of AlN homoepitaxial films

Applied Physics Letters

3 May 2004

Ultraviolet InGaN, AlGaN and InAlGaN multiple-quantum-well laser diodes

Novel In-Plane Semiconductor Lasers III; Photonics West 2004

24 January 2004

Ultraviolet InAlGaN multiple quantum well laser diodes

Physica Status Solidi

7 October 2003

Uni-directional lasing from InGaN multiple-quantum-well spiral-shaped micropillars

Applied Physics Letters

1 September 2003

Ultraviolet AlGaN multiple quantum well laser diodes

Applied Physics Letters

23 June 2003

Continuous-wave operation of ultraviolet InGaN/InAlGaN multiple quantum well laser diodes

Applied Physics Letters

14 April 2003

Effect of composition on the band gap of strained InxGa1-xN alloys

Journal of Applied Physics

1 April 2003

The Franz-Keldysh effect in shocked GaN:Mg

Applied Physics Letters

31 March 2003

Advances in InAlGaN laser diode technology toward the development of UV optical sources (Invited paper)

Photonics West 2003: Novel In-Plane Semiconductor Lasers II (SPIE Proceedings Vol. 4995)

25 January 2003

The effect of composition on the band gap of InGaN alloys

Applied Physics Letters

30 December 2002

Quantitative analysis of absorption and field-induced absorption changes in InGaN/GaN quantum wells

Physica Status Solidi B

1 December 2002

The state of semiconductor light sources - blue laser diodes and beyond

COMDEX 2002

22 November 2002

Defect and impurity engineered semiconductors and devices III

MRS Symposium Proceedings vol. 719

2002

Direct determination of the built-in polarization field in InGaN/GaN quantum wells

2002 International Conference on Semiconducting and Insulating Materials (SIMC-XII-2002)

30 June 2002

CW InGaN multiple-quantum-well laser diodes on copper and diamond substrates by laser lift-off

Materials Science & Engineering B

30 May 2002

Two-section InGaN multiple-quantum-well laser diode with integrated electro-absorption modulator

Applied Physics Letters

1 May 2002

Palo Alto Research Center (PARC) and Crystal IS demonstrate the first UV-LED on AlN substrates

Compound Semiconductor & III/V Review

4 April 2002

Progress in the preparation of aluminum nitride substrates from bulk crystals

MRS Spring Meeting 2002 Symposium Proceedings

1 April 2002

Thermal aging of Al thin films on GaAs

Journal of Vacuum Science and Technology

July 1976

Compact calorimeter for measuring laser absorption coefficients of small samples

Review of Scientific Instruments

March 1976

The effect of illumination on the 10.6 micron absorption coefficient of electron-irradiated single crystal KCl

Physica Status Solidi (A)

The influence of high-energy electron irradiation on the 10.6 micron absorption of mixed KCl crystals

Physica Status Solidi (A)

Electron trapping in aluminum-implanted silicon dioxide films on silicon

Journal of Applied Physics

Position expectation values for an electron in an infinite tilted well

American Journal of Physics

April 1970

Comments on ‘Agreement between classical and quantum mechanical solutions for a linear potential inside a one-dimensional infinite potential well

American Journal of Physics

December 1969