TABLE OF CONTENTS
GENERAL PHYSICS
1
Molecule Microscopy
II.
Scanning Desorption Molecule Microscope
1
Scanning Micropipette Molecule Microscope
2
Cell Surface Studies
2
Molecule Fluxes in Tissue
3
5
Developmental Electron Optics Laboratory
Ultrahigh-Sensitivity Electron Optical Determination and
Location of Impurity Atoms in Si and GaAs
III.
IV.
V.
VI.
VII.
7
Semiconductor Surface Studies
Electronic Structure of Homopolar and Heteropolar
Semiconducting Surfaces
7
Surface Phonons in Bonded Solids
7
9
Photoemission Spectroscopy
Angle-Resolved Photoemission Spectroscopy
9
Electron-Energy Loss Spectroscopy
9
11
Atomic Resonance and Scattering
Atoms in Strong Magnetic Fields
11
Far Infrared Detection with Rydberg Atoms
12
Field Ionization and Photoionization
13
Spin- Polarized Hydrogen
14
Efficient Energy- Transfer Processes
14
Detailed Study of Excited-State Energy-Transfer Processes
15
State-Resolved Differential Cross-Section Measurements
Using Doppler Velocity Analysis
17
Molecular Spectroscopy
19
21
Interfacial Chemistry
Photoacoustic Spectroscopy of Surfaces
21
Chemically Modified Surfaces
22
23
X-Ray Diffuse Scattering
Melting and Commensurate -Incommensurate
of Krypton on Graphite
PR No.
121
5
Transition
23
Structure of Xenon-on-Graphite
24
Nematic-Smectic A Transmission in Bilayer
Smectic-Liquid Crystals
24
The Nature of Smectic B Liquid Crystals
24
iii
CONTENTS
VIII.
Quantum Electronics
27
Laser Applications
27
Doppler-Free Stimulated Emission Spectroscopy
and Secondary-Frequency Standards Using an
Optically Pumped Laser
27
Observation of Non-Lorentzian Absorption Line Shape
of a Strongly Driven Two-Level Atom
28
Observation of Subnatural Linewidths Using Two-Step
Resonant Scattering in 12 Vapor
28
Measurement of Inertial Rotation Using a Passive Ring
Resonator
29
Measurement of Inertial Rotation Using a Multiturn
Fiberoptic Sagnac Interferometer
30
AC Stark Effect in a Doppler-Broadened Three-Level
System
31
Measurement of Natural Widths in
12 Hyperfine Structure:
A Test of Hyperfine Predissociation
Nonlinear Phenomena
Picosecond Pulses from Semiconductor Lasers
Distributed Feedback Structures
IX.
X.
XII.
PR No.
32
32
34
Surface Acoustic Wave Grating Resonator Modes
34
Tunable Optical-Grating Waveguide Filters
35
Time-Resolved Spectroscopy of Condensed Matter
39
Microviscosity in Gels and Polymer Solutions
39
Molecular Motion in Critical Mixtures
41
Equipment Changes
41
Infrared Nonlinear Optics
Infrared Nonlinear Processes in Semiconductors
XI.
31
Microwave and Millimeter Wave Techniques
43
45
Fluctuations in Nonlinear Systems
45
The M. I. T. Three-Element Microwave Interferometer
47
Microwave Devices Employing Magnetic Waves
121
43
51
Magnetic-Gradient Localized Magnetostatic Resonances
51
Magnetic Resonance in Thin Films Containing Magnetic
Bubbles
53
Optical Detection of Localized Magnetostatic Resonances
54
Variable-Speed Magnetostatic Modes in Uniform or
Nonuniform de H Fields
54
CONTENTS
XIII.
Magnetoelastic YIG Delay Lines
55
Magnetostatic Energy of Stripe Domain Patterns
56
57
Microwave Thermography
Microwave Thermography
XIV.
XV.
XVI.
57
Radio Astronomy
59
Long-Baseline Astrometric Interferometer
59
Controlled Thin-Film Antenna
60
Scanning Microwave Spectrometer Experiment
60
Tiros-N Satellite Microwave Sounder
61
Scanning Multichannel Microwave Radiometer (SMMR)
Experiment
61
Meteorological Remote Sensing near 2-mm Wavelength
62
Microwave Spectroscopy of the Interstellar Medium
62
Radio Astronomy Studies of Interstellar Masers,
the Intergalactic Medium, and Extragalictic
Sources
63
65
Electrodynamics of Media
Electromagnetic Waves
65
Remote Sensing with Electromagnetic Waves
67
Active and Passive Microwave Remote Sensing
68
Prediction of Backscatter and Emissivity of Snow
at Millimeter Wavelengths
69
Acoustic-Wave Propagation Studies
70
Electronic Properties of Charged Centers in Si0
2
-like Glasses
71
PLASMA DYNAMICS
XVII.
Plasma Dynamics
Basic Plasma Research
76
Renormalization Methods in Plasma Turbulence Theory
77
Intense Relativistic Electron Beams
78
Physics of High- Temperature Plasmas
121
76
Nonlinear Wave Interactions
Plasma Research Related to Fusion
PR No.
75
79
79
CONTENTS
Dynamics of Toroidal Discharges
81
RF Heating and Nonlinear Waves in Toroidal Plasmas
82
Nonlinear Theory of Trapped-Particle Instabilities
84
Tokamak Research:
85
Mirror-Confined Plasmas
86
Neutral Beam Research
86
COMMUNICATION
XVIII.
XIX.
RF Heating and Current Drive
SCIENCES AND ENGINEERING
Optical Propagation and Communication
89
Quantum Communication Theory
89
Improved Low-Visibility Communication
90
Digital Signal Processing
Linear Predictive Encoding of Seismic Data
94
Implementation of Multidimensional Discrete Systems
for Signal Processing
95
Event Detection in Sonic Well Logging
95
Adaptive Array Processing for High-Resolution
Acoustic Imaging
96
Design of Two-Dimensional All-Pass Filters
97
Time-Scale Modification of Speech
98
Parameter Estimation from Seismic Data
98
Performance of Maximum Entropy Spectral Estimators
99
Parametric Modelling of the Lungs from Acoustic Signals
XX.
PR No.
99
Speech Enhancement
100
Maximum Likelihood Estimation with Noisy Data
100
Winograd Fourier Transform Algorithm (WFTA)
Implementation
101
Evaluation of Circularly Symmetric Two-Dimensional
Fourier Transforms and Its Application to the Measurement of Ocean-Bottom Reflection Coefficients
102
Short- Time Fourier Analysis
102
Estimation of Unwrapped Phase
103
Speech Communication
121
93
105
Studies of Speech Production and Perception
106
Syntactic-to- Phonetic Coding in Speech Production
111
Studies of Speech Production and Speech Discrimination
by Children and by the Hearing-Impaired
112
CONTENTS
XXI.
Linguistics
115
XXII.
Cognitive Information Processing
117
Natural Language Processing
117
Digital Wirephoto System
118
Data Processing for the Graphic Arts
119
Image Processing for the Graphic Arts
120
Digital Color TV Coding
121
XXIII.
Custom Integrated Circuits
Custom Integrated Circuit Design
XXIV.
Communications Biophysics
Signal Transmission in the Auditory System
Basic and Clinical Studies of the Auditory System
Auditory Psychophysics and Aids for the Deaf
125
125
127
Binaural Hearing
130
Hearing Aid Research
134
Tactile Communication of Speech
137
Musical Pitch
139
142
Mechanical Properties of Hair-Cell Cilia
142
Theoretical Model for Semicircular Canal Cupula
Motion
143
145
147
Neurophysiology
A Central Pathway of the Infrared System of the
Rattlesnake, Crotalus viridis
147
Connections of the Tectum of the Rattlesnake,
Crotalus viridis: An HRP Study
148
Volumetric Theory of Color Constancy
148
Perception and the Observer in Relativity Theory
150
Computer Simulations of Myelinated-Fiber Refractory
Periods
153
Functions in R
m
That Invert Themselves after n Applications
New Test Patterns for Camera Lens Evaluation
121
125
127
Biomedical Engineering
PR No.
123
Intensity Perception and Loudness
Transduction Mechanisms in Lateral Line and Vestibular
Organs
XXV.
123
155
157
CON TENTS
Publications and Reports
163
Personnel
187
Author Index
195
Research Support Index
197
PR No.
121
viii