Zobrazeno 1 - 10
of 13
pro vyhledávání: '"785"'
Autor:
Günther Tränkle, Peter Ressel, Bernd Sumpf, Martin Maiwald, Julia Kabitzke, André Müller, Jörg Fricke
Publikováno v:
Sygma
Optics Letters
Optics Letters
A spectrally adjustable monolithic dual-wavelength diode laser at 785 nm as an excitation light source for shifted excitation Raman difference spectroscopy (SERDS) is presented. The spectral distance between the two excitation wavelengths can be elec
Autor:
Zhenmin Chen, Binghui Li, Caiming Sun, Shupeng Deng, Hongjie Wang, Lesi Yang, Xiaomin Nie, Aidong Zhang
Publikováno v:
Optics letters. 46(19)
We report a simple concept to implement a single-wavelength beam steering based on a liquid-cladded one-dimensional (1D) optical phased array (OPA). The beam steering was realized by modifying the waveguide mode effective index through replacing the
Publikováno v:
Optics Letters. 43:1271
We realize Ho laser operation in a composite Tm/Ho:YAG gain medium for the first time, to the best of our knowledge, which was integrated via diffusion bonding the Tm-doped and Ho-doped crystals into a single bulk structure. A maximum output power ar
Publikováno v:
Optics letters. 39(2)
Raman spectroscopy is an established technique for molecularly specific characterization of tissues. However, even with near-infrared (NIR) excitation, some tissues possess background autofluorescence, which can overwhelm Raman scattering. Here, we r
Publikováno v:
Optics Letters. 41:3411
Structural stability of KH2PO4 (KDP) crystal under laser irradiation is a great challenge to nonlinear optical devices. Herein, the dependency of structural stability on the propagated laser wavelength was established. Separated precipitations with d
Publikováno v:
Optics letters. 18(15)
We report a 10(3) increase in efficiency of second-harmonic generation in Tm(3+)-doped aluminosilicate glass fibers when the wavelength of the fundamental beam is tuned to the maximum of the (3)H(6) ? (3)F(4) absorption of Tm(3+) at 785 nm. This resu
Autor:
Armelle Rancillac, Tania Vitalis, Jean Rossier, Albert-Claude Boccara, Michel Gross, Michael Atlan
Publikováno v:
Optics Letters
Optics Letters, 2008, 33 (8 / April 15)
Optics Letters, Optical Society of America-OSA Publishing, 2008, 33 (8 / April 15)
Optics Letters, 2008, 33 (8 / April 15)
Optics Letters, Optical Society of America-OSA Publishing, 2008, 33 (8 / April 15)
International audience; An interferometric method for parallel optical spectroscopy in the kilohertz range is reported, as well as its experimental validation in the context of high speed laser Doppler imaging in vivo. The interferometric approach en
Publikováno v:
Optics Letters
We demonstrate simultaneous holographic optical trapping and optical image processing using a single-phase diffraction pattern displayed on a liquid crystal spatial light modulator (SLM). The ability of modern SLMs to provide multiorder phase shifts
Autor:
Larry K. Wong, Olav Solgaard, Gordon S. Kino, Wibool Piyawattanametha, Christopher H. Contag, Hyejun Ra, Jonathan T. C. Liu, Michael J. Mandella, Thomas D. Wang
Publikováno v:
Optics Letters. 32:256
The first, to our knowledge, miniature dual-axes confocal microscope has been developed, with an outer diameter of 10 mm, for subsurface imaging of biological tissues with 5-7 microm resolution. Depth-resolved en face images are obtained at 30 frames
Autor:
Yong-qing Li, Amol Ambardekar
Publikováno v:
Optics Letters. 30:1797
We report on optical levitation and manipulation of microscopic particles that are stuck on a glass surface with pulsed optical tweezers. An infrared pulse laser at 1.06 microm was used to generate a large gradient force (up to 10(-9) N) within a sho