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Optics, Photonics and Plasmonics
High Resolution NSOM of Au Grid
High Resolution Optical and Thermal Imaging
Pump Probe Ilumination Collection
High Resolution Near-field Optical Microscopy Imaging in Transmission Mode
Selective Protein Deposition
Zoom on Nano-Array
Zoom-in with AFM on PBG Structure
Nanoarray Plasmons
NSOM Imaging of Double Slit Plasmons
On-line Topographic and Near-field Imaging of A Multi-Mode Optical Fiber
On-line Topographic and Near-field Imaging of A Multi-Mode Optical Fiber
High Resolution Near-Field Optical Microscopy Imaging in Reflection mode
Collection Mode NSOM of Cathode Luminescence
Optoelectronic Device Structure
Quantum Dot Imaging
Evanescent Fields in Specialized Resonator Structures
Waveguide Structure
NSOM Reflection
Guided Light in a PBG
NSOM Light Distribution
Fiber MicroLens
Confocal & AFM of a Lensed Fiber/Laser Device
Image of Cache Memory
Photonic Band Gaps
Thermal Imaging of Optical Fiber
NSOM of the Edge of a Waveguide
Near-field Interference
On-line Topographic and Near-field Imaging of A Multi-Mode Optical Fiber
High Current 50 mA NSOM & AFM

As the injection current is increased the laser heats up and there is an alteration in the topography of the laser which alters the light distribution. 

nsom_light_distribution_346  NSOM light distribution

afm_205_ma_346  AFM 20.5 mA

afm_346  AFM

collage_of_afm_with_light_distribution_346  collage of AFM with light distribution

AFM & Light Distribution

Illustrated below: Distributed feedback laser structure, light distribution and collage of structure and light distribution at a low injection current.

afm_346_01

AFM

afm_205_ma_346_01

AFM

nsom_light_distribution_346_01

light distribution 20.5 mA

collage_of_afm_with_light_distribution_346_01

collage AFM/light distribution

Near-field optics provides the capability to predict the near-field from far-field methods. 

Far-Field

farfield_393

Near-Field

nearfield_397

The Distributed Feedback Laser AFM & NSOM Image at Higher Injection Currents (22.5 mA)

3d_nsom_316

3D NSOM

collage_of_afm_with_light_distribution_2nd_316

collage of AFM with light distribution

 

Topography at 20.5mA 

 new_page_topography_at_205ma_316_01

 

Topography at 50mA (for comparison)

new_page_topography_at_50ma_316

 NSOM Light Distribution

new_page__nsom_light_distribtion_316

 Collage of AFM with Light Distribution

new_page__collage_316

As the injection current is increased the laser heats up and there is an alteration in the topography of the laser which alters the light distribution. 

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