Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Paul Nachman"'
Publikováno v:
Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology.
Levitated particles are attractive systems for precision optomechanics due to their extreme isolation from their environment. Here we describe several experiments with microparticles in magneto-gravitational traps, which use a combination of diamagne
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c96fc5f913b271e9ea51a83369902b67
https://doi.org/10.1117/12.2515721
https://doi.org/10.1117/12.2515721
Publikováno v:
American Journal of Physics. 67:45-51
We analyze the energies involved in quasistatically changing the orientation of a magnetic dipole with unperturbed magnetic moment μ in the magnetic field B of a stationary source. We define an effective potential energy Veff for the dipole in a sta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58ae0d845b8069db9891af96b94c24d1
https://doi.org/10.1119/1.19189
https://doi.org/10.1119/1.19189
Publikováno v:
Aerosol Science and Technology. 28:95-104
We report the operation of an aerosol analyzer capable of measuring the fluorescence spectra of single micrometer-sized bioaerosol particles as they flow through the instrument. Particles entrained in an airstream initially traverse a cw (continuous
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::20a6916f48dde67d3f48d5badc793846
https://doi.org/10.1080/02786829808965514
https://doi.org/10.1080/02786829808965514
Autor:
Aaron C. Bernstein, Paul Nachman
Publikováno v:
American Journal of Physics. 65:202-213
Students in our upper-division/graduate physical optics laboratory course assemble a high-finesse Fabry–Perot interferometer (FPI) from components, mode-match it to a helium–neon (HeNe) laser, and examine some of the FPI system’s properties and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c8e5db87eeebf2c50acb1d5bed9b88b
https://doi.org/10.1119/1.18572
https://doi.org/10.1119/1.18572
Autor:
Paul Nachman
Publikováno v:
American Journal of Physics. 63:39-43
Students in our upper‐division/graduate optics laboratory course assemble a Mach–Zehnder interferometer from simple components and use it to learn about interferometric principles and to visualize the phase‐front geometries of light waves. Here
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::085ae9f4f236757356801cbbfd4a918d
https://doi.org/10.1119/1.17766
https://doi.org/10.1119/1.17766
Autor:
Paul Nachman
Publikováno v:
American Journal of Physics. 61:564-567
A few‐micron‐thick nitrocellulose membrane stretched flat across an open frame (a ‘‘pellicle’’) has gently modulated passbands typically spaced by 20–60 nm across the visible and near‐infrared. This makes it an attractive subject for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ad279719db4375e75b2a8a315bb9ce8
https://doi.org/10.1119/1.17210
https://doi.org/10.1119/1.17210
Publikováno v:
Optics letters. 21(16)
We report the operation of an aerosol-fluorescence spectrum analyzer capable of selectively measuring the fluorescence spectra of single micrometer-sized aerosol particles as they flow through the instrument. As the particle first traverses a cw 488-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::544874e70471324a4011f8e862e7ddee
https://pubmed.ncbi.nlm.nih.gov/19876334
https://pubmed.ncbi.nlm.nih.gov/19876334
Publikováno v:
Optics letters. 20(20)
We describe a previously unreported nonlinear scattering effect that occurs in cylindrical liquid jets irradiated by an intense laser pulse. The spatial characteristics of this feature are quite striking: light emanating from a thin (/=5 microm) circ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa9c76ecf99e2f9c1b94422892ebbfde
https://pubmed.ncbi.nlm.nih.gov/19862260
https://pubmed.ncbi.nlm.nih.gov/19862260
Autor:
Gang Chen, Richard K. Chang, Paul Nachman, Ronald G. Pinnick, Steven C. Hill, Gilbert L. Fernandez, Michael W. Mayo
Publikováno v:
Biomedical Optical Spectroscopy and Diagnostics.
We are developing laser based fluorescence particle counters and spectrum analyzers which should be useful for real-time monitoring of airborne bacteria, proteins or other particles. Improved methods for detecting and characterizing airborne particle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::768a7163044042dff7c52569fca9d52c
https://doi.org/10.1364/bosd.1996.ca4
https://doi.org/10.1364/bosd.1996.ca4
Publikováno v:
American Journal of Physics. 65:441-443
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::618b9c68dd51536d06ba037e860a79bd
https://doi.org/10.1119/1.18558
https://doi.org/10.1119/1.18558