Zobrazeno 1 - 10
of 102
pro vyhledávání: '"H. Vanherzeele"'
Autor:
B.K. Nayar, H. Vanherzeele
Publikováno v:
Journal of Nonlinear Optical Physics & Materials. :119-134
Dual-wavelength optical switching in a polarization-maintaining fiber is investigated both theoretically and experimentally. It is shown that the group velocity dispersion, generally considered to be a disadvantage, can be exploited to achieve comple
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72ebd497b9ce6f1c6c0eb3b2e5ab57bf
https://doi.org/10.1142/s0218199192000078
https://doi.org/10.1142/s0218199192000078
Publikováno v:
Proceedings of LEOS '93.
We demonstrate that bladder tissue autofluorescence provides more adequate information for tumor demarcation, thus eliminating the need for sensitizing agents. During initial experiments, autofluorescence spectra were recorded with an optical multich
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ffc55e2bf2edac4d788af916326f90fb
https://doi.org/10.1109/leos.1993.379019
https://doi.org/10.1109/leos.1993.379019
Autor:
H. Vanherzeele, B.K. Nayar
Publikováno v:
IEEE Photonics Technology Letters. 2:603-605
Complete optical switching of 2-30 ps signal pulses in the 0.83-1.0 mu m wavelength range is demonstrated using 50 ps control pulses at 1.053 mu m in an optical-fiber Kerr modulator/switch. This is achieved using an initial temporal offset between th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c7749934021bbcf599a6b043bd7ab38
https://doi.org/10.1109/68.58062
https://doi.org/10.1109/68.58062
Publikováno v:
Medical Radiology ISBN: 9783642643231
Visual differentiation of normal tissue from transitional cell carcinoma (TCC) is relatively easy, but carcinoma in situ (CIS) or nonmalignant diseases, such as cystitis (bacterial, chemical, or due to radiotherapy), are often invisible to the naked
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0565ad1663eacf1788d5e13b2599fd5a
https://doi.org/10.1007/978-3-642-60258-0_10
https://doi.org/10.1007/978-3-642-60258-0_10
Publikováno v:
Acta urologica Belgica. 62(4)
Fluorescence tagging of tumors by sensitizing agents such as hematoporphyrin derivatives is an efficient method for diagnosing tumors but presents, even at low doses, a number of serious drawbacks for the patients. We demonstrate a fiberoptic instrum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::9d442fe70f8c92888ce9afc7cc799945
https://pubmed.ncbi.nlm.nih.gov/7793348
https://pubmed.ncbi.nlm.nih.gov/7793348
Publikováno v:
The Journal of the American Paraplegia Society. 17(4)
The diagnosis of transitional cell bladder carcinoma and especially carcinoma in situ of the bladder in spinal cord disordered persons is often made difficult by catheters, infections or stone-induced chronic inflammation. Fluorescence tagging of tum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b773f2756db97228d723c076ab2a1d44
https://pubmed.ncbi.nlm.nih.gov/7869057
https://pubmed.ncbi.nlm.nih.gov/7869057
Publikováno v:
Optical Society of America Annual Meeting.
We describe the cascading of two second-order nonlinearities [χ(2):χ(2)] to produce an effective third-order nonlinearity in KTP.1 This nonlinearity appears as either an irradiance dependent loss or phase distortion on the incident fundamental beam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd6b2b3ab2edd2ca0de16b2b5e82ee78
https://doi.org/10.1364/oam.1991.thjj6
https://doi.org/10.1364/oam.1991.thjj6
Autor:
H. Vanherzeele, B. K. Nayar
Publikováno v:
Ultrafast Phenomena.
Ultrafast all-optical switching has been demonstrated in various optical fibre interferometric devices using the optical Kerr effect [1-4]. The ultrafast nonlinearity of silica results in incomplete optical switching with non-square pulses (square pu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d5cf324f62f66f40b929a7a228958c58
https://doi.org/10.1364/up.1990.wc13
https://doi.org/10.1364/up.1990.wc13
Publikováno v:
Optical Society of America Annual Meeting.
In addition to having attractive nonlinear-optic characteristics, KTP has promising electro-optic and dielectric properties that make it useful for various electro-optical applications, such as modulators and Q switches.1 We report an experimental st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a3ca9f5338daff202b731ae589f42cd
https://doi.org/10.1364/oam.1990.mnn7
https://doi.org/10.1364/oam.1990.mnn7