Laser etching of 0.4 μm structures in CdTe by dynamic light guiding

Arnone, C.; Rothschild, M.; Ehrlich, D. J.
March 1986
Applied Physics Letters;3/17/1986, Vol. 48 Issue 11, p736
Academic Journal
CdTe single crystals have been etched by photosublimation with a cw visible laser. Structures with lateral widths comparable to the laser wavelength (∼0.5 μm) and depths exceeding 10 μm were obtained using a moderately focused beam. The formation of these structures is highly nonlinear with respect to laser power and is analyzed in terms of the dynamic interaction of the beam with the induced microstructure. Once initiated, deep structures are formed via laser-induced tellurium enrichment of CdTe surface layers and the consequent enhanced waveguiding properties of these surfaces. The mechanism of etching has been studied by mass spectrometer and light scattering experiments.


Related Articles

  • Narrow linewidth excimer laser for inscribing Bragg gratings in optical fibers. Othonos, Andreas; Lee, Xavier // Review of Scientific Instruments;May95, Vol. 66 Issue 5, p3112 

    Describes the development of a spectrally narrow linewidth KrF excimer laser for the application of writing Bragg gratings in optical fibers. Incorporation of two air spaced etalons within the laser cavity; Achievement of a stable wavelength setting for writing Bragg grating in optical fibers;...

  • Multimode Fibers Transport High-Powered Laser Beams.  // Microwaves & RF;May2010, Vol. 49 Issue 5, pS4 

    The article reports on the use of multimode, step-index optical fibers for the delivery of high-power laser beams in military, industrial/commercial and scientific applications.

  • A 1.55-μm semiconductor-optical fiber ring laser. Jopson, R. M.; Eisenstein, G.; Whalen, M. S.; Hall, K. L.; Koren, U.; Simpson, J. R. // Applied Physics Letters;1/20/1986, Vol. 48 Issue 3, p204 

    We demonstrate the first semiconductor-optical fiber ring laser. The laser uses an InGaAsP traveling wave optical amplifier as the gain medium and a 1-m length of highly birefringent fiber as the feedback loop. Output coupling is provided by a fiber directional coupler. The highly birefringent...

  • Plastic microring lasers on fibers and wires. Frolov, S. V.; Vardeny, Z. V.; Yoshino, K. // Applied Physics Letters;4/13/1998, Vol. 72 Issue 15 

    Photopumped, pulsed, narrow line laser emission is demonstrated using cylindrical microcavities formed by π-conjugated polymer thin films wrapped around thin glass optical fibers and metal wires with various diameters D. A variety of cavity-dependent resonant laser mode structures were...

  • Crossed femtosecond filaments form plasma grating in air.  // Laser Focus World;Nov2011, Vol. 47 Issue 11, p10 

    The article reports on the development of self-channeling filaments by femtosecond-laser pulses at East China University in Shanghai, China.

  • Bundled fibers boost laser beam delivery. Hecht, Jeff // Laser Focus World;Nov99, Vol. 35 Issue 11, p81 

    Presents information on the importance of bundled optical fibers to laser beam delivery. Approaches for coupling light into the fiber; Information on the acceptance angle and numerical aperture; Link between fiber size and ease of coupling; Types of beam-delivery fibers; Illumination of fiber...

  • Femtosecond fiber lasers hit power highs. Sucha, Gregg; Endert, Heinrich // Laser Focus World;Aug2000, Vol. 36 Issue 8, p133 

    Discusses the developments in ultrafast fiber laser system. Applications of the fiber lasers with continuous-wave power; Key technologies used in the fiber laser system.

  • Confinement and bistability in a tapered hemispherically lensed optical fiber trap. Lyons, E.R.; Sonek, G.J. // Applied Physics Letters;3/27/1995, Vol. 66 Issue 13, p1584 

    Implements a single frequency, dual fiber trap using tapered, hemispherically lensed optical fibers that are pigtailed to laser diodes. Confirmation of the axial and transverse trap efficiencies as well as existence of bistable trapping positions; Use of fiber lenses; Creation of an optical trap...

  • Single frequency erbium fiber external cavity semiconductor laser. Loh, W.H.; Laming, R.I. // Applied Physics Letters;6/19/1995, Vol. 66 Issue 25, p3422 

    Demonstrates an external cavity configuration for stable single frequency operation of the semiconductor laser. Utilization of erbium doped fiber as the external cavity; Suppression of the laser mode-hopping; Derivation of a resolution-limited optical linewidths of a kiloHertz.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics