Arbitrary control of the polarization state and intensity of non-diffracting beams along their propagation direction
Bibliographic record
Abstract
We experimentally demonstrate a class of non-diffracting beams with state of polarization (SoP) and intensity that can both be controlled along the propagation direction. The beams are composed of a superposition of equal frequency co-propagating Bessel beams (BBs) with different transverse and longitudinal wavenumbers. The BBs are weighted by suitable complex coefficients derived from closed-form analytic expressions. The desired polarization states (i.e., linear, radial, azimuthal and elliptical) are each independently encoded onto a set of BBs with the suitable polarizations. For experimental generation, the resulting field is decomposed into two orthogonal polarizations (horizontal and vertical). Via constructive (and destructive) interference of BBs, specific SoPs can be designed to switch on (and off) during propagation. This effectively alters the resultant SoP and intensity of the beam throughout propagation. We envision our proposed method to be of great interest in many applications, such as optical tweezers, atom guiding, material processing, microscopy, and optical communications.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".